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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 current exists in the metal0wu 6t)cx.(.zz rvp cl resistor connected to the battery. Which zrz 0ccp(l6.tu.) wvxone of the following choices best describes the direction of 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 parallel, the_________each resis+8vra4abqecpa hygli7:;q 5r7o1 s* ttor is the sag7aiyqva* loh4artq1 epc 7+85 : r;sbme.

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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 the f sin;hggq-obzp2t :zt2v-o8(u7 e e8wilament to become white hot, while the larger wires connected to the lightbulb remain8 o2p:thqbv ;7g-ieg8 t zo( enwsuz2- 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 househoq;qc ;g tq0z+ild lights are being replaced with LEDs. LED is the acronym for which one gc ; t0;iq+qzqof 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 resistorj ip)8 ww lw+gl-t)l;v has length L and cross-sectional area A. It is to be placed into a circuit, but it first mustl))w - 8ijlp+wgl;vtw 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 of the same material. uy)g.pkgnu4p) 0 b1 zr d8ww1sWire II has twice the diameter and twice the length of I. If I has resistance pur11w0)wkb yug8gn)s pd z.4R, 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 the same material but has twice atd-v qy( .mvsh.y4c.the diameter and half the length of wire X. If wirhmvy.v(yca-s . d .tq4e 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 radiqkq rw4bu:l ,d-5b 2dv+2uwhqus r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the r b d4qub-:q rwl+u 2h5,wd2kvqesistance 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 decidam/ dngzg4(4c es to modify the filament. How should the filament of a lightbulb be modifieddg4cg4 z mna(/ 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 resistors are mayt 71aj m:lq1ade of the same material. The length and radius of each resistor is: 1 ma:7ytjq1 la
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 i*ldk:l k36n dmn the following way: “Two resistors are connected in series. This combination of two resistors is connecteld*63 d:lknk md in parallel to a third resistor. This 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 th y5ek-ba *8ap+r5qpdfe accompanying circuit diagram has internal resistancebad+ kfpp er5q85*-ay 10.0 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 compound circuit shown to the right. The three bulbsb.ins;te.fii4n2er)tt 8 ;z p 1, 2, and 3 - representedei fn;ib t .)z;2.rneip t4ts8 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 rz1. i1fe5m tjpight. If the current in all three resistorszpmt j1f1ie.5 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 ao uuey .hf7tyfs)dj)0k/-vvf.h /1rst right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (hs0t1u )7s y./hfff uy/vjk)r-.vde oor 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 NOTp cdw g36j,q)o true concerning the simple circuit swc go djq,63)phown where resistors 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 X andY are connected in series to a battery. Bulb X iswyy1ou i481wsbh06-r wi4e gn brighter than bulb Y. Assume all circuit elements are ideal. If bulywu y61egi01iobs-nw 844 rwhbs X andY are connected in parallel 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 througpf lfp:dwsqou o.4(ma3b,:8l hsx g/-h the identified resistor in 5 seconds once the circuit q (8 xoamf/-,ld3:w: .hsfobpl 4psug 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 circuit have tdk df0dp( 7h l(-nzv5nhe same resistance, which would dissipate the greatesfzdd-5dl0nkhvp ( 7n(t 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 currg3 hbv,4e) nxrent through the 6.0 Ω resisto4gv,xbe 3n)h rr is 1.0 A. What 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 connected *t8ogzzi;l. zmoke ) )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 poi)zk;z 8 o)zg*toml e.wer. 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 paralm ayta7ihd:: 8lel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 h:ayt:m 8ia7d dissipates 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 watrmbg n2 n.p4e2ts and 120 volts. What is the maximum value of the current under theseer.p42gnb nm2 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 tp . d2xfp dtxgz73*g.60 watt lightbulb designed to operate at 120 voltpdx3z.ttf d .pg2 7*gxs?

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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 currengoerookkw+ d8;k i nbs i98 5kcl2e65,t flows through a 4 ohm resistor that is dissipating 36 watts of bg5l eoiks6r8 o,92cik+dkw5ne8k; o 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 press clothes is marked "120 volt, 606 .y bd4zt)vacd: zr5qrc8ii)o zd/ x00 watt.” In normal use, the current in ctzbd:dq6z.ayoc)vzd8rr 0/x)i5i 4 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 be produced by a circuit co:,fbr,k:,n a f2daw3 vbflac,ntaining only three identical 6Ω resib: 2f,ad,f nkv: 3ara,cwfl,bstors?

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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 resib+g:zq 8 px v)ui*g zkgm0gc w2c:u)m;stors. Which of the following equivalent resistances CANNOT be produced using all th:bkcu8m) zc)x q0v 2g+i:gzmg*ug;wp ree 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 conhvr6 u51 ie1k1/iw: d+su ragcw;hw) 3owdp f5nected together in different configurations. If all three resistors are used in a circuit, ho ;:wa sde1wh/c+d r 3 w5ugp56)iv1 hkrw1fuiow 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 ,rhx24/yltjl .cal r0 z+ qjw2resistor 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 th.lj+hqlrc4/yrw 202, l zja txe 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 R1 and R2, arcs379o.t ;r tik 8u2/-g5u m zrnjaxbhe connected in parallel, the equivalent resistance of tc5rn2/7z tgurt;x. k-mos iba83hu j9he combination is 5Ω . Which of the following statements 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 6hudep- t+y5 adesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minup d6t-+5 eyahimum 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 w5rstgy/ntxfe2u49bi -nv 7o 7atts 72 y-u/n eo7sx9tfrn5 4 ibvtgof 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 o jw,fdu/zx 37120 volts. If the pric /zo 3j7u,fwdxe 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 h7ncrz k22cg ;cow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rat72c c ;cg2zknre 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 lightbug4xfyj(x (amd )r5w cx7we*4po90sde lb results in a power of 24.0 W associated with the d)osr47ea(y j5cdw0fx*ep ( xmx4 9wgbulb. 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 of six owns a computer rat9*1xuence ;la* o.*,eaec d fom1h7pved at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the comput** ;a1.vc 1c e odap9 m*o7ueheflex,ners 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 form a simpnj4hyl j vvs-1eyv3h g8 ,hi*:le circuit avy3i:h1v8vyh n ,je4j-gh l*s s 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 is connected to four resisto/pt * cbc-xqwl 2,py/trs to form a simple circuit as shown to thectw/l2 tp-q/xb p,yc* 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 ideal ammeter, a switch and three reidh ;o-:xuz1)yvz h4p ,y1cl esistors are connecte; 4e-lhyycu :)d,1pziv1 h xozd 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammet8ylu v7.cqi031s/ y p frdu7qeer, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeeyuu7ifsv0.dq c 83 /lr 1p7qyres.
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 a-z9h8u5cubx a nd three resistors are connechb8xuaz u9c- 5ted 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 equivalent resistance? br/ lqhlg6 d v+6i) ;3k/dnqyw Assume that all wires are idr k3 n/bq6)/;vdw6+glqihlydeal, 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 the circuit shown to the rih9vong.mqyq3 t -gv4 x x5k44sght with resistanc vn4gs -v.x9yhq53x4oqt 4mk ges $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicagj s5g4s.bbue(1 3vg il resistors connected in a combination series and parallel circuit to a voltage souv4 g3bbg5ejss( .1 ugirce.
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 identical r :b4 o3l bpwj.gjzr(vu z8a))lesistors connected in a combination series and parallelz:zo4 gulw )jl38.(vab jpbr) 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 the bulbs r q67pqor2rz9y,w5vhare identical. Which bulb wr5r 26woq ph9qy, r7vzill 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 amme (v63gs * (eibwujsm,2cgohrmy u+j75ter, a switch and three resistors are connec j ovcjgu3h*+5 s iwgsry,6(27uebmm (ted 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 and three yr/eqv 9e2y:dw(ipxc:2 a q3wresistors are connected as shown. With the switch open as shown in the diagram the amwydw i22apexye3(cv q:qr 9 :/meter 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 k.vvh go,8x1; ihu4gs ideal ammeter, a switch and three resistors are conn kvh4gv xuhg8.1o;i ,sected 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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