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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 electric curwlsi9l()8 m0ra8 ug)e m ojnz5rent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electr5 )l zeagnso)u l 98immwrj0(8ic 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 parallel, the_________eacaqd0a)a md1)v h resistor is the sa1 qaa)d0v dma)me.

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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 filamenzqf,*, ylsowo7+tdfe*kv4a w/ u h5(ut wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the liz,+v how4u*dso,a*ulw5 y e(q7f kt/fghtbulb remain much 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 household liucduy 0 7ajgc t m;+*zs)6q4eoghts are being replaced with LEDs. LED is the acrony*ga;m)ou+t y cz0uqc4 s6ed7jm for which one 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 cross-sectf6nrf:gg:7zp 4gj ) umional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. What is the ratio of the new resistivity to theg):ug pnrz7gff:4 mj6 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 fq*qs;x w,/ef,j+ 2jrw+b an qof the same material. Wire II has twice the diametexef qwn qr/*+f2;w,sajb+, q jr and twice the length 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 o05k a rncc-)7-wmm q2dqlo8b of the same material but has twice the diameter and half the length of wire X. If wir -o8w oqbn-cad2m0 klc)mqr75 e 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 c49: cd 7ffvab x* ;ue6b9uxcamaterial is then drawn so that it is a cylinder with ne74 eufdu*v6fcbb aa;x:9cc 9xw 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 Thomas Edison wants to make a brighter light bs( jsebtr 7,-mulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givesbm-r(t 7 ,jsen 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 hnx)xbf-8r kl 8 ikg12resistors are made of the same material. The length and r)xbn18kg -xhri2f8 kladius of 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 therdan, o8l ih m9+.+ykx following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. Thi.o lyxa 9r8mk n+di,h+s set of three resistors 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 accompanyinxsczm6yf2- b 3yr75uwg circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 2 ymbuw cx26s-7fryz355.0 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 to the rqqvyp;)(iy:/fm c bs- ight. The three bulbs 1, 2, and 3 - represented as resistors in the diagram s-pq bfq)ycy (v i/m:;
- 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. 0rp-7tb 3ckm6*c.qefnm kz4 ad5 fc7kIf the current in all three resistors is equal,r fd3a6-kmftcqc 570.4zkpeb k7nc* m 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 electric circupwo8,z*qn w4bhv 914 ye(t nteit composed of 5 identical light bulbs and 2* envbt9o4 41tw hqyp8 e,zwn( 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 following statements is NOT(a7synvyit1n4mk )aj,2 cy 9cna)qe7 true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal2vmy 1sj 47yink ,c cy(aqaa))enn 97t 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 X andY are connetih9hpgtp61zq p /mw7 ia2o49z6jan:cted 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 parallel with each other to the same battery, which one of the following choiceo1wzp47h zh9/ 2 pitajaqin6 t6:g9 mps 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 through tm.kkfd1io;u b)n3t e +;;nptm he identified resistor in 5 seconds once the circuit was clenp .fkmudt+k1om;; ti; )nb3osed?


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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 circuit have twczb +h dsid.80tk4r,he same resistance, which would dissipateri+d8z,h 0dkwts 4. cb 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, the current through the 6.0 Ω ru7osyn. q9h5 gesistor is 1.0 A. Wu.hg sn9 5qoy7hat is the power 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 cw290ya lr2mbd onnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissi y0bl229m adrwpates 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 different resistors R1, R2 andR3 are connected in paralle*zukxt ir6c5u48 bs1x l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the 5 tbsxi6xuzr*kc4u8 1current 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 ww vd(b:fn +* nr+xze4ezvb1- eatts and 120 volts. What is the maximum value of the current un+f (ewb+4*zvvn 1edbe- :znrx der 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 designed toqefe2tf-vw) 0 operate at 120 volfqt0 -2we fe)vts?

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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 db nt++8 abq,k9;r to-1mkjwaohm resistor that is dissipating 36 watts of power?kbt-q+n ;kmr1a9oa ,bd+ wtj8

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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 press clothes is marked "120 vol6 zx-u6l3e wtut, 600 watt.” In normal x6et3uuwzl -6 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 resistances could NOT h.x/ d;cycj3edki0sr n. 0+5 6nfvchkbe produced by a circuit containing only three identical 6Ω re6cndjs0 hxcn.f hc30kd vy.5/r i +;kesistors?

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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 79 nn. skgml wk+3-de2acsjtzpnl0*.following equivalent resistan3ngl. *eks9- mlc2n+pa .dtkzwjs7n 0ces 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 different values can be connected tog8i /aux.h6um( zkm s;aether in different configurations. If all three resistors are used in a circuit, how many diffe;(k mhziamu s./8ux6arent 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 battery, a total power P is dhg6jpnk*-1mr a.;j(sx hzs pg r76 c6wissipated in the circuit. How much total power is dr6ha.nm pskj1xz6s-j h7g ;6rp (*w gcissipated in a circuit if n identical resistors are connected in series using the same battery? 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 R1l8n/w pn5 or-p and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following sw/n- p5ln8oprtatements about the resistances 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 that it has a resist;-.8j1bfqxyw llhc 1/pju)84(surmes o ljd 0ance of 12Ω when operating at 120 volts. What is the minimumjd/).l 4w uhjcospqlr - yb(jf1ls;x8u108 em 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 t,x;jh:z. np+v y fqe,man.lev,g83b bhrough a 4 ohm resistor that is dissipating 36 watefvam ql ,b:en8,b,.vx pj;+hnyg. 3zts 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 cltl2yyz u.p epl naz5,e5;.2current when connected to 120 volts. z ap2c.y.;zt, p unel le5l5y2If the 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 10 nvau+ 6,0qgu7yem)9-zkjzli0W lightbulb lit continuously for 1 yeuk9vml6z,nzeag-j+ 7) uq 0yiar 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 current of 4.00 A through a lightbulb resu xlw*mz f4.x(+, 4cb8xgpjja6swlx 6p rx h)t9lts in a power of 24.0 W associated with the bxr)(6 p 9 a4c pw*4mxlx,jzf6jw.lsgbxx ht+8ulb. 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 famil 0y(p;h/v l9 xdqhksyu7ss+l (y of 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 fuse, what x9ssys( kl+(u7; 0pqvhld/hy 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 connected to four resistors to ;crb * km dgu9 jngoj 2/t/7oy8ijx92sform a simple circuit m9ijn 2c98dkgbtor7/ojg/2 y; *jsuxas shown 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 ib: oc;f.fqnq+6 )uegbs connected to four resistors to form a simple circuit as shown to th+ bcfbq;neu q6f. o)g:e 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 batte 2/p bht+.h3nsszmj7rry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown i/r73n z.hj +hbpss mt2n 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 arp,9 3v4p qndr*a+bfy me connected as shown. With th9+qn3fbd vy ,am*4pr pe switch open 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 awp gwb1k2k6lu .lkf(0 nd three resistors are connectl0wbp2.f 1kwkukg l 6(ed as shown. With the switch open as shown in the 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 is the qp-b9i.t d*6 oikfex rr/ 6 6r)5bborfequivalent resistance? Assume that all wir9t6q drfib6 .pob-ri)5*foe xrbk/r6 es are ideal, the battery has no internal 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 kn ;w(; bbt7e2m e+ywithe circuit shown to the right with resistai;b(2;ynk+e t mbww e7nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 show fs)gehog4 7q9s five identical resistors connected in a combination seriesohf qs9 g7)4eg 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 five ideu w-6;n e gpezh+mg4wx ok: iqu2q./o0ntical resistors connected in a combination series and paroz2.q/eg4 w0o;qe6nk :u+w pmxh i-guallel 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 of h n:uqda))w;n the bulbs are identical. Which bulb will be the brightest? adnu)wh q)n;:


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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, a switch and thrgu7rgo 8r+b3+pxq +j f*zp7xc ee resistors are connec+gxb *+r8+quxpf77 z cg 3rpojted as shown. With the switch open 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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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 m*6fo7ib j-iv0d g 8zmpqp(5jand three resistors are connected as shown. With the switch open as shown in the diagram the ammeterojv p8z*6ip-( g5bqimdm0j 7f 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 ammeter, a switch and three resistors are hrfw-ufo6j c1g(.p7o0b. 31eat oecxconnected as shown. With the switch open as shown in the diagram thje f.baow1etpgo 1 o7.r-(3 fh6ccxu0e ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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