51fly国际课程 (51fly.win)

 找回密码
 立即注册

手机扫一扫,访问本页面

 

      

上传图片附件

未使用图片

小贴士: 允许的图片文件格式为: gif, jpg, jpeg, png, webp,上传完成后会在上方生成预览,用鼠标连续双击缩略图,或拖动缩略图,该图片就被绑定至本题,显示在题目下方

本次作答已使用

小贴士: 此栏目显示的是当前作答使用的所有图片,绑定到某一题目的图片同时会显示在该题目下方; 删除使用的图片会将其转移到<未使用图片>类别


习题练习:Physics Unit19: DC Circuits

 作者: physics 发布日期: 2022-08-17 15:49   总分: 102分  得分: _____________

答题人: 游客未登录  开始时间: 22年08月17日 12:52  切换到: 整卷模式

标记此题
1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the terminals of ah63mmevqhd /3lhr0d go0z (,s battery, when no current flows to an external circuit, is refeh drl,h m0go3shq0 vm( /d36zerred to as the

参考答案:    

标记此题
2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The potential difference between the terminals o amfw/7yb iyha.az,-; bk2g 1nf a battery, when current flows to an external circuit, is referred to as t b.iy,2 -nazha7f y g1b;mkaw/he

参考答案:    

标记此题
3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in s .gh;i 9ugp.5p ,cmq;)yuu experies to a battery

参考答案:    

标记此题
4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected inm rxe:v y/ysna8deq:2;v 0qa. r;t+nn series,

参考答案:    

标记此题
5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in series to a battery. If the cur j+gox5+9vztom(m.d w rent of 12 A flows from the battery, how much curt59+ vxzo +j(mdwg mo.rent flows through any one of the resistors?

参考答案:    

标记此题
6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in series to abk8kt mu5c9/ r 12-V battery. What is the voltage across any one of the re8 mr9btkuk/c5sistors?

参考答案:    

标记此题
7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  You obtain a 100 $\Omega$ light bulb and a 50 $\Omega$ light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?

参考答案:    

标记此题
8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in series to a constant voltage souabtkd.u)2t-y-;+exd dz2 idurce, the power suppliud+2 dbxd -z) .i-ukyad2 e;tted by the source

参考答案:    

标记此题
9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more resistors are connected in myl3 p.ko,dz 1parallel to a battery,

参考答案:    

标记此题
10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When resistors are connected in parallel, we can be certain b18le 2m; rc) j:iz) ekdsdmw.e7-cwbthat

参考答案:    

标记此题
11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallm8.v2b qx7d p9vjqq6jel to a 12-V battery. What is thjqx9dv2qbp j7.q8mv6 e voltage of any one of the resistors?

参考答案:    

标记此题
12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical resistors are connected in parallel to a battery.3qwe;oi b;+rahj o4yw n4dx:5 If the current of 12 A flows from the battery, how much current flows throi+ro nw5jy3hqeo 4d w 4x;;a:bugh any one of the resistors?

参考答案:    

标记此题
13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The lamps in a string of Christmas tree lights are connect9v2r me dzubo:4s;vtga5 s24hed in parallel. What happens if one lamp burns out? (Assume negligible resista5zoe htdm rss vgv944a2b;:u2nce in the wires leading to the lamps.)

参考答案:    

标记此题
14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more resistors are added in parallel to a constant voltamj.ukxuu9)n p+cto (4ge source, the power supplied by the souku x. pmc( n+tu9u)jo4rce

参考答案:    

标记此题
15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Consider three identical resistors, each of resistance R. Theapl9nfa9 - p 4)e1mgju maximum power each can dissipate is P. Two of the resistors are connected in series, and a third is connected in papm- 9f 19jlna)4 uepagrallel with these two. What is the maximum power this network can dissipate?

参考答案:    

标记此题
16#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's junction r n)ncvy7gyr tl-m++e0u)8 bx cule.
参考答案:    

标记此题
17#
 
问答题 ( 1.0 分) 切至整卷模式 搜藏此题  
State Kirchhoff's loov.r6w9 gv es7qu2okq66eo ,o xp rule.
参考答案:    

标记此题
18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's loop rule is aoapp r(w(44,zttfx9xn example of

参考答案:    

标记此题
19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Kirchhoff's junction ruleo4juyx ub*,r ( is an example of

参考答案:    

标记此题
20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Which of the equations here is valid for the circui8rdi3qhl 0txow.g 9am+iz 27tt shown?


参考答案:    

标记此题
21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries7 +*ld7 kgrpdf together in series ("+" to "-" to "+" to "-"), and place them in a circuit, the comb7 dp+*lkdf7rg ination will provide

参考答案:    

标记此题
22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries together in series ("x c3*to2 lp 7l*ljlc,q+" to "-" to "-" to "+"), and place them lxotc*qc *, p7ll23ljin a circuit, the combination will provide

参考答案:    

标记此题
23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If you connect two identical storage batteries toge7;0hvu8v l f oc9qck9sther in parallel, and place them in aslk9 chc0u;v v8f7q9o circuit, the combination will provide

参考答案:    

标记此题
24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in series to a batkmn. m74 qh.of2bn.amtery,

参考答案:    

标记此题
25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in series, the equivalent w ,f6ej*rb7k gcapacitance 7r,kje*wfb g6of the combination increases.

参考答案:    

标记此题
26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacitors are connec em0ep/+ o,6sli,g t,k2wjpvzted in series to a battery. If a total chart l /sv602 mojz, i,gkweep,p+ge of Q flows from the battery, how much charge does each capacitor carry?

参考答案:    

标记此题
27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  When two or more capacitors are connected in parall dr b3c f4h+uli*zf;k0el to a battery,

参考答案:    

标记此题
28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  As more and more capacitors are connected in parallel,zrp*vi- - f.61k( d7poucaupn the equivalent capacitance of the co cruzui.-kd *a6pf7-pvo(1n pmbination increases.

参考答案:    

标记此题
29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three identical capacg bm;y.5-seop7p mfv- itors are connected in parallel to a battery. If a total charge of Q flows from the battery, how much charge does each capacitor c p5;ymbsg of. m7--vpearry?

参考答案:    

标记此题
30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the unit for the quantity RC?o t.i j+jjf 88ajkb()n

参考答案:    

标记此题
31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in/ad4 mai ,hz5g series to an ideal battery of constant terminal voltaa/ mi hga4,zd5ge. At the moment contact is made with the battery, the voltage across the capacitor is

参考答案:    

标记此题
32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected in series to an ideal battery of conhj/ic0x:+n yi stant terminal voltage. At the moment contact is made with the battery, the voltag +jic0yn/hix :e across the resistor is

参考答案:    

标记此题
33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A resistor and a capacitor are connected i),p6cp7*r vlkc*sv.kc fz6ybn series to an ideal battery of constant terminal voltage. When this system reaches its steady-state, the voltagez *7b6cv,6clcrp. )p sy vkfk* across the resistor is

参考答案:    

标记此题
34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An ideal ammeter shouldrjg9v/00zw ntv56 .fm w1,niesc;uvk

参考答案:    

标记此题
35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer can be conv i95 ow8ati cfc4n(gi5erted to an ammeter by the addition of a

参考答案:    

标记此题
36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A current reading is obtainexl8r1,:)6ktl*d k,o8a m rsx9kmj qbe d by properly placing an ammeter in a circuit consisting of one resisx6l:m8)rbko xlk da mr,e1tq* 9js,k8tor and one battery. As a result,

参考答案:    

标记此题
37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Decreasing the resistance oawy9a v f g4v74vh)g)tjz19r gf an ammeter's shunt resistance

参考答案:    

标记此题
38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  In order to construct a voltmeter from a galvablxcgk 3g:ixt22nw w 4nk )*g9nometer, one normally would

参考答案:    

标记此题
39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Increasing the resistance ofa9(t h-/7 xzd 1cjk,bhm8lkzl a voltmeter's series resistance

参考答案:    

标记此题
40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A voltage reading is obq2cx )njz jr :lge-i-/tained by placing a voltmeter across a resistor. What happens to the total current flowing in the circuit as a resurcxlz:/e)qj i- -g 2njlt of this action?

参考答案:    

标记此题
41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor is wired in series with an*yjwn724r qabti4hf) ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter. This network is then placed across a battery. If one con*2whrtjq 7a b 44)fyimputes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained

参考答案:    

标记此题
42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  An unknown resistor ,6vv9b vm2i:7:oc jpx2 tjnfais wired in series with an ammeter, and a voltmeter is placed in parallel across the resistor only. This network is then connected to a battery. If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtaine,n:vvv a 2x9:iptcj mfb726ojd

参考答案:    

标记此题
43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 20 $\Omega$ resistors are connected in series. What is the equivalent resistance?

参考答案:    

标记此题
44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four resistors of 12, 3.0, 7wvhw7vq*ccu)8 :dzy2w r f:v5.0, and 4.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

参考答案:    

标记此题
45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, 12, c- zihiob/ p g j)a32ivw92ww4and 6.0 $\Omega$ are connected in series. A 12-V battery is connected to the combination. What is the current through the battery?

参考答案:    

标记此题
46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 12, xchy,e9e*v fw9jl 5/h 12, and 6.0 $\Omega$ are connected in parallel. A 12-V battery is connected to the combination. What is the current through the $6 \; \Omega$ resistor?

参考答案:    

标记此题
47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series g(h7wag 0zqt5combination of a 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 4.0 $\Omega$ resistor?

参考答案:    

标记此题
48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 14-A current flows into a series combination of apuzd0 )z:d3vbaq4 bb h7o1 ka7 3.0 $\Omega$ and a 4.0 $\Omega$ resistor. What is the voltage drop across the 3.0 $\Omega$ resistor?

参考答案:    

标记此题
49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a paralle c,xg1*)u fu5tz+0te5 qith nxl combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 12 $\Omega$ resistor?

参考答案:    

标记此题
50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel c ..1d spe9hwrv.b)qxe/5h sy eombination of a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What current flows through the 6.0 $\Omega$ resistor?

参考答案:    

标记此题
51#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 22-A current flows into a parallel combination rg2 d +t:n,o e1.vhdrtof a 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistor. What current flows through the 4.0 $\Omega$ resistor?

参考答案:    

标记此题
52#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 6.0 $\Omega$ and a 12 $\Omega$ resistor are connected in parallel to a 36-V battery. What power is dissipated by the 6.0 $\Omega$ resistor?

参考答案:    

标记此题
53#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  The following three appliances are cwf+0 u+fb zb (aiy)xn;onnected to a 120-V circuit: 1200-W toaster, 650-W coffee pot, and 600-W microwave. If all were operated at the same time what total curr) i z(w f+xanuy+0;bbfent would they draw?

参考答案:    

标记此题
54#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the maximum number of 100-W light bulbs you can connect in para18n fs:e su, r.z tefgs6h3xtwf-u9bf-5p*a y llel in a 120-V circuit without trippiefr hz9-:snwp-f y gu*.tex5s68a,ffb3sut1 ng a 20-A circuit breaker?

参考答案:    

标记此题
55#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A combination of 2.0v*lkf52-- 0mpfc clmh5bab9d $\Omega$ resistor connected in series with 4.0 $\Omega$ resistor is connected in parallel with a 3.0 $\Omega$ resistor. What is the equivalent resistance?

参考答案:    

标记此题
56#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two 4.0 $\Omega$ resistors are connected in parallel, and this combination is connected in series with
3.1 W. What is the effective resistance of this combination?

参考答案:    

标记此题
57#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0 $\Omega$ resistor is in series with a parallel combination of 4.0 $\Omega$, 6.0 $\Omega$, and 12 $\Omega$ resistors. What is the equivalent resistance of this combination?

参考答案:    

标记此题
58#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 15 and tub4/h 1jpd++ z rtc0a/99a:lbwy uxp 30 $\Omega$ are connected in parallel. If the combination is connected in series with a 9.0-V battery and a 20 $\Omega$ resistor, what is the current through the 15 $\Omega$ resistor?

参考答案:    

标记此题
59#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Three resistors of 4.0, ca* semh5 d)ao0oc-4fn .o (wz6.0, and 10.0 $\Omega$ are connected in parallel. If the combination is connected in series with a 12.0-V battery and a 2.0 $\Omega$ resistor, what is the current through the 10.0 $\Omega$ resistor?

参考答案:    

标记此题
60#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 7 iuj+e i54qmnand 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 4.0 $\Omega$ resistor?

参考答案:    

标记此题
61#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0 and (3j53ew4 +fygl*upyy0 qdetu 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 5.0 $\Omega$ resistor?

参考答案:    

标记此题
62#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two resistors of 5.0q5ue +;gms owvro-- antv2.y 9 and 9.0 $\Omega$ are connected in parallel. A 4.0 $\Omega$ resistor is then connected in series with the parallel combination. A 6.0-V battery is then connected to the series-parallel combination. What is the current through the 9.0 $\Omega$ resistor?

参考答案:    

标记此题
63#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 3.0 $\Omega$ resistor is connected in parallel with a 6.0 $\Omega$ resistor. This combination is connected in series with a 4.0 $\Omega$ resistor. The resistors are connected to a 12-volt battery. How much power is dissipated in the 3.0 $\Omega$ resistor?

参考答案:    

标记此题
64#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total resistance +gqt2;y e p-oqof the circuit in Fig. 19-2?


参考答案:    

标记此题
65#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 40 \; V$, what is the voltage on R1 in Fig. 19-2?


本题所包含的其它图片:

参考答案:    

标记此题
66#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 20 \; V$, what is the current through $R_3$ in Fig. 19-2?


本题所包含的其它图片:

参考答案:    

标记此题
67#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If 1.5 A flows througz.qgvvo9ps59, ykah3ajom ;w 30)nrm h $R_2$, what is $E$ in Fig. 19-2?


本题所包含的其它图片:

参考答案:    

标记此题
68#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the total re2mk t6ousc,y( p 1.qobntb*t)sistance of the circuit in Fig. 19-3?


参考答案:    

标记此题
69#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 100 \; V$, what is the voltage across $R_5$ in Fig. 19-3?


本题所包含的其它图片:

参考答案:    

标记此题
70#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  If $E = 4.0 \; V$, what is the current through $R_6$ in Fig. 19-3?


本题所包含的其它图片:

参考答案:    

标记此题
71#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the currmrz v;uy dp;*)ent in the 1 $\Omega$ resistor.


参考答案:    

标记此题
72#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, deterlg*2o*pk+d qz mine the current in the 3 $\Omega$ resistor.


本题所包含的其它图片:

参考答案:    

标记此题
73#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  For the circuit in Fig. 19-4, determine the current in the 4 gim in-3.drdpa7xu 7( $\Omega$ resistor.


本题所包含的其它图片:

参考答案:    

标记此题
74#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point A relative to point C in Figp 9k7:7vny7hpc;aqd: stu3 js x5fhr ;. 19-5?


参考答案:    

标记此题
75#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point B relative to point C in Fi3f,(k4a d zqszg. 19-5?


本题所包含的其它图片:

参考答案:    

标记此题
76#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential of point D relative to point C in Fig.+k8 n7t igs*qlvms/b 4 19-5?


本题所包含的其它图片:

参考答案:    

标记此题
77#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows from the batterjt2 4b7ok7sj g sbne-;y in Fig. 19-5?


本题所包含的其它图片:

参考答案:    

标记此题
78#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What is the potential drop fv2 9;,bowtjzh93j7etsvooz4 n)b j4xrom point A to point B in Fig. 19-5?


本题所包含的其它图片:

参考答案:    

标记此题
79#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in t wwk-nhb5(d l2,p7cqi he 7 $\Omega$ resistor in Fig. 19-6.


参考答案:    

标记此题
80#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current a6;km6 2ic/+djb*d 7iltm av uin the 8 $\Omega$ resistor in Fig. 19-6.


本题所包含的其它图片:

参考答案:    

标记此题
81#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Determine the current in tipi zawa-u88z g-8 y uwj08o1: ohgd+whe 4 $\Omega$ resistor in Fig. 19-6.


本题所包含的其它图片:

参考答案:    

标记此题
82#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 1c hdo)w. ske bb+3g,z;2 $\Omega$ resistor in Fig. 19-7?


参考答案:    

标记此题
83#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the 1 bvra.kv.o8wvt47dk,0bvc99/o t x ce 8 $\Omega$ resistor in Fig. 19-7?


本题所包含的其它图片:

参考答案:    

标记此题
84#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  What current flows in the solid wire connecting the upper left and lower a/xc dd9x1hij e7 )axla5dr,5left corners? xje5x9drcd1aiahd75xa, l/ )

参考答案:    

标记此题
85#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Four 16 mF capacitors are connected in series. The eq d vy.rp(:mk9luivalent capacitance of this l (v:rd9yp.kmcombination is

参考答案:    

标记此题
86#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF capac;n .jfhgnp tp pc9. 54n m3svw)7h3oamitors are connected in series across a 12.0-V battery.5)og334tpm 7c;jmh.vhnnfp p .asw 9 n How much charge is stored in the 5.00-mF capacitor?

参考答案:    

标记此题
87#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  5.00 mF, 10.0 mF, and 50.0 mF 0p)sm35 ugolicapacitors are connected in series across a 12.0-V battery. What is the potential difference across the 10.0-mF capaci) 5u0ogip 3smltor?

参考答案:    

标记此题
88#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mdnfjl )(w,s*pF capacitor are connected in series across a 3.0-V battery. What , lwn(f djsp*)is the voltage across the 1.0-mF capacitor?

参考答案:    

标记此题
89#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 1.0-mF and a 2.0-mF capacitor are connected in series,i)pz. u2pcrmbevp0 * across a 3.0-V battery. )i.z 0e mrppcb2 uv*p,What is the voltage across the 2.0-mF capacitor?

参考答案:    

标记此题
90#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  1.0 mF, 2.0 mF, and 3.0 mF capacitors are conn) 3rz+nwznzz41 ctb z/ected in parallel across a 24-V battery. How much energy is stored in this combinationn3 zzbwr ztz4z1 +/)cn when the capacitors are fully charged?

参考答案:    

标记此题
91#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Capacitances of 10 mF and 20f5,)ym h9w6g xfs u*:7 bgyxiw mF are connected in parallel, and this pair is then connected in series with a 30-mF capacitor. What is the equivalent capacitance of this arrangementm *whwfyg g,95sif67y xx: bu)?

参考答案:    

标记此题
92#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF and 8.00 mF are connect, tfq7qcdlhhg0z 3::ved in parallel. The combination is then connectez:h vc 0l 7qdht:3,fqgd in series with a 12.0-V battery and a 14.0-mF capacitor. What is the equivalent capacitance?

参考答案:    

标记此题
93#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF anfn5d:y* bow sj0p *8-iaze* bwd 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the c*pdw*s*n:oej5bw 0bz f-8a iyharge on the 6.00-mF capacitor?

参考答案:    

标记此题
94#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  Two capacitors of 6.00 mF ;t/z,4yiole : d r*kd0n4erf,dd3ms y and 8.00 mF are connected in parallel. The combination is then connected in series with a 12.0-V battery and a 14.0-mF capacitor. What is the v 4 l,yietdfd4yrrm/30o*d; sk:e znd,oltage across the 6.00-mF capacitor?

参考答案:    

标记此题
95#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged through a 50 cml5g7f3bw,i*rs6i hc fcsgy:cf.2 0$k\Omega$ resistor. How long does it take for the capacitor to reach 90% of full charge?

参考答案:    

标记此题
96#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 2.0-mF capacitor is charged te2/l3nk 7fnao o 12 V and then discharged through a $4.0 \times 10^{6} \; \Omega$ resistor. How long will it take for the voltage across the capacitor to drop to 3.0 V?

参考答案:    

标记此题
97#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-MW resistor is connecte8vi -u(o1/riqgfz5v vk n6gl*d in series with a 0.50-mF capacitor. The capacitor is initially uncharged. The RC combinatiorgnz8/ u6i1lk(fo-5 *v vigvqn is charged by a 9.0-V battery. What is the change in voltage between t = $RC$ and t = $3RC$?

参考答案:    

标记此题
98#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A 4.0-mF capacitor is charged to 6.0-V. Itss y ,b.2x0t5elqvozb) h:kk 4 is then connected in series with a 3.0 hksxqv:4 le,o kz b.y0t)52sb$M\Omega$ resistor and connected to a 12-V battery. How long after being connected to the battery will the voltage across the capacitor be 9.0 V?

参考答案:    

标记此题
99#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an internal resistance ovnq 11(t a fr0ecb,0zuf 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?

参考答案:    

标记此题
100#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has a coil with a resistance of 24.05a n+lec8( ai:fy/ef b $\Omega$. A current of 180 mA causes full-scale deflection. If the galvanometer is to be used to construct an ammeter that deflects full scale for
10.0 A, which resistor is required?

参考答案:    

标记此题
101#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer has an inztv:wq3eei3i i ie 1m zai */(zn2/ch3ternal resistance of 100 $\Omega$ and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a millivoltmeter capable of reading up to 400 mV?

参考答案:    

标记此题
102#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  A galvanometer with a coil rnmpud/r r 219iesistance of 40.0 $\Omega$ deflects full scale for a current of 2.0 mA. What series resistance should be used with this galvanometer in order to construct a voltmeter that deflects full scale for 50 V?

参考答案:    

总分:102分 及格:61.2分 时间:不限时
未答题: 已答题:0 答错题:
当前第 题,此次习题练习共有 102 道题
本平台(https://autodiscover.51fly.win/)支持练习,作业与考试(自动评分)三种模式,群组成绩统计排序导出,题目动态变量实现同卷千人千题
如果您对本系统感兴趣,想加入我们或者想进行任何形式的合作,请加微信 skysky1258

浏览记录|手机版视频|手机版试卷|使用帮助|51fly国际课程 (https://51fly.win)

GMT+8, 2026-4-18 00:44 , Processed in 0.732893 second(s), 234 queries , Redis On.