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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, an elb4xu*z:rxrkvzy/ i /h8,,hzpectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electronz*r/b8z xrvh4/xk ,:,izu ph y 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 parall+;b,bt7u:feyheex k a:i v--h, i4bt ael, the_________each resistor is the7ixiahbkeh+-:bb,y: ,e4a-f ue; tvt same.

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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 the thin filament wire of a lightbulb causes the8oz 6( ;i2uy qni*w4xovhy 9as filament to become white hot, while the larger wires connected to the lightbulb remain muv (*zws26yyh9u;ox 8aq oin 4ich cooler. This 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 homohr ij:6/k:r z09qo*giqok - usehold lights are being replaced with LEDs. LED is the acronym for which one of the following q0:i 9r:mqhjorgook* k/-iz6 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* 73aal2pb, yifpo/gq resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it gafqp lyb/o3a* 7p,2ifirst must be cut in half so that the new 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 made owjv5u *;r qzbhh: 44:ded6b uff the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II haq::hh ddwe*b bjf5uu4vr4 6 ;zs 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 the same material but has twice the diame:6a8; prlgva ster and half the length sag 6lav r:;8pof 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 mate+. t jmauspm28rial is then drawn so that it is a cylinj. mm2aup8t+sder with new length 2L. What happens to the resistance 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 Thomas3am+7wop7nq6qn ; pnvst gf/0 Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filaqvp ot67aw7 mnnf+0qgs3/p;nment 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 l vst gu81**bixx.)t wresistors are made of the same material. The length and radius * 8xs*) .buvigwt1txlof each resistor 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, are connected to a battery in thexe 9)+*x kuuun/g+gskc 9l 6ua 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 re9csk/e*u+l9 g +xxna u6ugku)sistors is connected in series to a fourth resistor.” 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 circuit diagram has internal resew n:b+wl;b(w istance 10.0 kW aw:l(bw new +b;nd 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 compound circuit shown ojsauvi,j94 o2 o5ugft*e8 b 3to the right. The three bulbs 1, 2, and 3 - represei4so eaf 8to2ougv,5j9b3 uj* nted as resistors in the diagram
- 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 electrical circuit at the right. a o+rk b;l-hz::m/ meb:.m5-sssna xcIf the current in all three resistors is equa- nxe;rkscas-h./ mm:l :o sbaz+:m 5bl, 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 ezcm a z(b10uq .fshq1.lectric circuit composed of 5 identical lighqm0zsh.ucabf(1 zq. 1 t bulbs and 2 flashlight 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 foambi:uz(9fo pl+ +5jd rz)1 n:e0aufp llowing statements is NOT true concerning the simple circuit shown where rfazfpal+ +j:(mz)bue 5 ndr:u0 19pioesistors R1, R2 and R3 are have equal resistances?


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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 dj0zw9ijpr6g l*x m,3 ic,:ooX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in par z*r ,ijdpgx,mo 6309:olicjwallel with each other to the same battery, which one of the following choices best represents what is observed?


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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 throuz-c *( viz n.j/luzoa4gh the identified resistor in 5 seconds onco-*4nicvza .z/ ( julze 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 simple cy )ojfan+v9 :jircuit have the same resistance, which would dissipate the g:) vjony jf9a+reatest 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, the curr yg/1os5js 00sebnf n( 7bhc+tent through the 6.0 Ω resistor is 1.0 A. What is the pow+e 750sn(tb o1fhjngs 0/bycser 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, and R3 are connected in series to a battery. Suppqw8t x,9q+qx 1ax0 pcpose R1 carries a current of 2.0 A, R2 has a resistance of 3xp8qp w + 9c1a,x0txqq.0Ω, and R3 dissipates 6.0 W of power. What is the voltage 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 differentwia sbgvx,g6f-s; 50oeu:4a, +wjtl m resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipa, swve4um-+5a6xg: j obaitsl; ,f0gwtes 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 watts and 120 vcm6h;r(6+-nsd9imtq 2 avic f .iaib7olts. What is the maximum value ;q t6+ic2ihaa .ir 6bmdv m(-infs c79of the current under these conditions?

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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 lightbulb desixqd*1 lyh-y)d kdt:6fqd pj89 gned to operate at 120 vo19 )tdf -d*p :dd8q6xjyhqly klts?

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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 dissipating d6,ea ld-(ru:n a f*tu36 waa-:a(dr *udn tu,l e6ftts of power?

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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 used to pressd3nmsnau;15*vxiun 57jh97 3 pbibe 1yj;n cq clothes is marked "120 volt, 600 watt.” In normal use, the current i ni1yidpjx j;eqnm cn7n u159h5ab7bsu33*; vn 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 followi/k2j f+iy*n btng resistances could NOT be produced by a circuit containing ny /+bfit2 *kjonly 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 of the following equivalent jq.0ql ( +wn3:ihro*( ykvis xresistances CANNOT be proq lr+v ( iiq *jos.(xk:yw03nhduced 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 different valukjx cjgh796ly 36e au3) 9ipibes can be connected together in different configurations.ci ka7j hx bp363e99gyi)u6 jl If all three resistors 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 resistor is connected to a ba/7izg m dck6,2rto*tuttery, 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 battery? Assume th7rk,mtu*o6c 2t g/idze 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 resisp,. nqyo3/y 1d/h(ka*uxb mr xtance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is coq ub* no.,hyx/k/r(d1yamp 3 xrrect?

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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 that it has a resistance of 12Ω aw2 2vb 0 5:7zdhg*ub8gyzqlx when operating at 120 volts. What g 2y2dqa:78xzw0 zb v bgulh*5is the minimum 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 dissipating 36 wqd am/9tv59 :wrc ytznxnl)8: atts of pow:w 9xn/v :dml89yta n 5zqcr)ter?

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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 cu0:qv qk4top;trrent when connected to 120 volts. If the price ofqt:q;t o0 pvk4 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-f4jr2; kf zo ie,h7yo would it cost to keep a 100W lightbulb lit continuously for 1 year at a rat r 4;k,yoh i-zffoje72e 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 current of 4.00 A through a lightbulb results in a powzcr ak46oxb6)er of 24.kx a)z46r c6ob0 W associated with the bulb. Which one of the following choices best represents the resistance of 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 off +.zm:nrbhb) t)67 nvwuvbp: six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fusep:u+nz nb.:7f)w6hm tbb vvr), 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 connected23 smyx t/pw8)vfhr:lhn0a j 2 to four resistors to form a simple circuit as shown tohyawnfrh/vs 38lp 0 2)2:txjm 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 resistors to form a simple cwc5mn6zz6*pv7-a fn 5bk3und f)-sg) ;yeap n ircuit as shown to p)ef ka u-7 v-n 5bg5dnz)swzm63 pcyaf nn;6*the 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, a mfbd4u ;u*m4nn ideal ammeter, a switch and three resistors are connected as shown. With the switch op4u;n dfmu4mb* en as shown in 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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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 and three resistors are2 p0(lcmagbrwjcm,toi36 1* g connected as shown. With the switch open as shown in the diagram thrw *ib lco1m3g,2g(mj 06tpcae 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,pq5) au0x)dph a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r qua dxp)0p5h)eads 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, wg+ +azf 7mr v*1d67evjtzh cw,hat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi mzd7crh6,a 17+*+tg ewvzjfvstors 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+hm9jlf1frf g:y;g r+w0e(qm to the right with resist; g+mr0 flq f:re(9w+h1jmfyg ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical resistors connected iwfv/g(q*suq59flzp /n a combinati/u pqvw*gfqsfl5z( 9 /on series and parallel circuit 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 f s3v)v0 aby6tpive identical resistors connected in a combination series and parallel circuit to a)t6b 0y3vs pav 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 bo:4z (kfopb- 0n0-7 hitrbljdiagram, all of the bulbs are identical. Which bulb -f ioorp:b0znh lk07- j4bt(bwill be the 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 ekz*ep6iwd1v7kwp c5w1 q1w 4ammeter, a switch and three resistors are connected as shown. With the switch open as show* qkev w41ced167k wwzpw i51pn in 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 battery, an ideal ammeter, a switch and three bba4 e:;x. izuresistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesxa.b :e4ub ;iz.
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 inz d7zdbnx +p .lq:6i7deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe+ b7z.n:7linzqx6 pddres.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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