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习题练习：.Resistor.
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 作者: admin  发布日期: 2024-08-22 15:34    总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuit shown, 69/:3y fd,y zq 9s hukblcoe)uan electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of ecyfkoy6l zs 9u:u ,h9/3 qbd)electron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four resistors are connected in paralcu;a1s 75wle- 1pa ukalel, the_________each resistor is the same.u u5lpea1;acs a71k- w

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through /k.e/yhjm*:qw2i pe( l5cc zh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. T (h chlwipcqe/ey25m/*. jkz:his happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard household lights are being repla 8s7irzs:ky *3 vqeq)rced with LEDs. LED is the acronym for which osv r)yq:krsie7 3zq*8ne of the following choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphite resistor has length L and crkr+i )v ops+q bg10ugqn6 0f,ffc dv87oss-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new 0q fb+g+p1 v)rcf nik87q,vd0sogfu6 length is 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wire II are zj7fw1/ qhkws+a++dt made of the same material. Wire II has twice the diameter and twice the lengt/qd+ 7kst j w1wfha++zh of I. If I has resistance R, II has resistance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of t0,lj3 y mlno:e28 kkddhe same material but has twice the diameter and half thk kll2jo n03d8,dm y:ee length of wire X. If wire X has a resistance of R then wire Y would have a resistance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resistor has length L and radius r. This piece of materia;j,9*+ 8nv. ngs e6 g-duzl. vyoodpcpr;n;pol is then drawn so that it is a cylinder with new length 2L. What happens to the resistav6rgo.;* pud 9 sno;, pn v-y.jo+n;8pezl dgcnce of this material because of this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Edison wants to make a brighter light bulb. He decidesmohc 8tl9s- 9g to modify the filament.9ctlo sm-8h 9g How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical 3qg6z-(/uxqd)lzp5ry s ;cvq resistors are made of the same material. The length and radius of each reqyxpv (- l)quzz6rd/s3q5; cg sistor is:
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, asaeng0x0n8 +8 z,qrlrj 4xi*5sgeh 7o re connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This set of three resistors is connected in series to a fourth re 7zqo0+n04i,n5s8rx*hsajge 8 gl xresistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the accompanying 2qso4:t8pnwapym +p ;l/ iyb7circuit diagram has internal resistance 10.0 oq8b+ atlp7i y: mpy2sw4;pn /kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compoun 86pukvtsa 83gd circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrv 38tusg86pakam
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple electricpiu 0b79cjx3dal circuit at the right. If the current in all three resistorscx 7 03j9dupbi is equal, which of the following statements must be true?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at right represents a simple electxx 5(ag ivds ;fz70mg(ric circuit composed of 5 identical light bulbs and 2 flas(dv (im0zsaxxg7 g ;5fhlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the following statements is NOT true conceu- d w zofv5u:.(lh7 zazwbq42rning the simple circuit shown where resistors R1, R2 and R3 are have equal rew:bd u7zz42o5v haz(-qf u wl.sistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X andY are connected in series n,mf0tw 9 i7 ri (n33o+o(t(igewcgogto a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of the following choices best represents what is obse gino7 (c, tog330fmrn9tiw oie+gw((rved?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will pass pn,44s zg.kb ithrough the identified resistor in 5 seconds .,in pgzb4s4 konce the circuit was closed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the resistors in the following si u.uqdbkpn.8v3 (a ush1p2zz-,qnj i0mple circuit have the same uqauvn. q10, ph -(d38jzpksn2z .iubresistance, which would dissipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuit diagram, i0t+z+lvgqpz-j , rz3the current through the 6.0 Ω resistor is 1.0 A. What is the powerqz,t l3j-zg+ 0z v+pir supply voltage V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, an5 fwlvg 5xo/c rc(-mh*d R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the volta hm(/-wrc5*o 5fc vlxgge across R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three different resistors R1, R2 andR3 are connected in8cgmp g0eh 8 05w5oqjp parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 wq0mh5ggc8oj5p 80epdissipates 6 W. What is the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil is rated 1200 wata oks9tv9hc5 x(,z5 z hx8thf+ts and 120 volts. What is the maximum value of the current under these condition(h9x 9o ha +v,zftxk5hcs 8z5ts?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance of a 60 watt ligh1pwj8(fz hn8nv d0wr 4tbulb designed to operate at 120 vop w 88w4rz(vh0fndjn1lts?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is dis jackl.+r2j :khx0(v o,9sfjxsipating 36 watts of pow,hl(:jsa j0jxkf vxro. +92cker?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron usewj btuo6)6kn2 d to press clothes is marked "120 volt, 600 watt.” In normalb ktu6 )jo6wn2 use, the current in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the following resistancec abtn( f1.qn7.yco+dj .ow:es could NOT be produced by a circuit containic c :a ydfjt+1ono7( bq.w.n.eng only three identical 6Ω resistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0 Ω resistors. Which oi5 :0 n zi/zg)oo.sdnvf the following equivalent resistancesgio)z n50: sin/ zdo.v CANNOT be produced using all three resistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors of differend7sra-.e3hkmfd5u d2 t values can be connected together in different configurations. If all three res3e2 d-kusf 5. rmdha7distors are used in a circuit, how many different values of total resistance can be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistybtekf ;g2ys q2:rt* ;or is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same batty*2st ;rk:qg bfe2; tyery? Assume the internal resistance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, having resistance R1 and R2, are connected in ;w lc xt)e)f4:p m,mssparallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rewstxs)l:)m p m ec;,4fsistances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed such tha.wy vmhakzjq64*l; 2e t it has a resistance of 12Ω when operating at 120 volts. What is the minjwv ;ha2mlzky e64*q. imum amount of time that it would take to warm 0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is dissipam qz36(q kcpds z 1ops:7pmo-.ting 36 watts (p1kq mmzszp3opsdqc .67 o-: of power?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater draws 13 amperes of current when connected to 120 vf 4wdb*;twv lc 6 zmr9ju6c/8qolts. If thumv;6rzc69 w* fltc4jbd/wq8e price of electricity is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it cost to keep a 100W lightbulb lit co.bstdyo26jd* ntinuouo*b sy.6t2dd jsly for 1 year at a rate of $0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant currekx nfl1gzl //u6s oq4,xjw76qp4v0 sgnt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance uvq6 og4psf gx1,4s 7wzklq j60//lxnof the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of a family of six owns a computer ratgosh ko*6ufkg*f 9cfj 9+85;a)5imxlx 2hyv eed at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protectede;5ffcayk *6hv5ji28xl h g 9)+mxo*osug kf 9 by a 20 ampere fuse, what is the maximum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is connwa 4p3 0dqwznq7 yvx,2ected to four resistors to form a simple circuit as sp703qywqw,4x d z2anv hown to the right.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to four resid1 zf- gfxd3a;ag pzb8*hf2, qstors to form a simple circuit as shown to tb1a-zf3 g8dfdg*a ;zfqhp2,x he right.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideab(n cjpzsjp) 7:us,5wsn 19 tbl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperessj5s , b)p7 9tw(n1npbzsuc:j.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeter, a switch a-p* e7bzeod ;wnd three resistors are connected as shown. With the switch open zed7 po*;bwe- as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three resist nywylbev ;x,;2d /9bpors are connected as shown. With the switch open as shown in ;y2nx /b lbev; ,ypdw9the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to the right, what ismtbq r0, t7hiiyqd;50 the equivalent resistance? Assume that all wires are ideal, the battery has no internrq 07tm5 0yidtbhi;q,al resistance, and all three resistors have identical resistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of the circuit shown to the right wc itzfsh+/,q5ith resistaniq+hz/, st 5cfces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram below shows five identicalgr;hodp9 k/r7tw,/sl resistors connected in a combination series and parallel circuit,/;o 9s wtlhkpdg/7 rr to a voltage source.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identicalss. tl7rjb2h+)(qeza resistors connected in a combination series and parall z(j7h2abs.elr+t )qsel circuit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, all of8bd ,+efwwc7u the bulbs are identical. Which bulb will be b8+ 7wc def,wuthe brightest?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, kxj-tg(9t :aqfc* yc/)uw.u b a switch and three resistors are connected as shown. With the switch open as shown ifyw)uk bc a ttuc9q/.g(j- :x*n the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery6vgti zvk+i nhs r-5er36 m)o*, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am 3it65z* nvekrr 6-) osgh+vimmeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter4ec0mj/z f0 pq, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter /zc0em4j0f qp reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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