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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 z 4b:bc;2 leeirgjcidx2 2*y1in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron j4y222c; c:lzrxeg ed1b*bii 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_________et,(. mqjh(qip ach resisto(.iq,jm t h(pqr is the 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 xzxl6 ybwk3r743:w; -q 5eilsvcy9 gxlightbulb causes the filament to become ys359gl;b7-e rwvlwxzq 3ykx4: 6icx white hot, while the larger wires connected to the lightbulb 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 lights 5:4do4.fg:w f a,tawft,xktyare being replaced with LEDs. LED is the acrony 4f:ttkf w4,tdafa:o,g w y.5xm 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 h -e f(g67mi5 twh*dca)az+ ksgas length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the newtas kz w7+ig d-he5m*c 6)ag(f 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 ma ty6mzw8blm*6 iur9j/terial. Wire II has twice the diameter and twice the length of I. If I has resistan*j/w6myl z6bimr89ut ce 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 the same mat-ydp: v9.maoc erial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance do9p- y:va.cm 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 pg(ymi i 2(+rwriece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becirm(rgy (+i2 wause 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 det0d/0+nbi 8-,y f gyt,kxpb0*bob uqmcides to modxtb 0bb dy/,0- pft0*u,y qibk8+ omgnify the filament. 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 redf+8uju -1ybp3 wq )yxsistors are made of the same material. The length and radiud-yyq+)jp3wu bu8fx1 s 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, arergz)q*) 5 rtcplr2i*g connected to a battery in the follgig ptc2rr)l **5)zqr owing 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 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 circui 1k7fb yl0gwz+t diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0+l0byg7z1 fkw 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 4kc, /zrg;kva ,.m x*lhmj6ck the right. The three bulbs 1, 2, and 3 - represent/ mkgzl,kj;v,.hcm6*c arx 4ked 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 circ/qoq3:opv ym*n/*a y luit at the right. If the current in all three resistors is equal, which ov/ :lqy*a3/oqnpm y*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 circuit composkal: ) -k1ymrjed of 5 identical light bulbs and 2 flashlight cr)y k -1ljk:amells. 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 tr w0y ubdiww6n-5tkkb7 9l- l.iue concerning the simple circuit shown where resistors R1, R2 an.l w9 in kld6-7bbuik w50-tywd 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 c8zj9f9kzj9fhh 7a04tmqf 0 hconnected 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 choices best represents what is obfq970f hjz8j9z 09thk ma4fc hserved?


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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 wilgr znjjy3l5q*bs k)(; k3qxv+ l pass through the identified resistor in 5 seconds once the zsjk*jk(3vl 3 grbq x+5n)yq; 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 l4 :(mqr sko3*0cfhyl the following simple circuit have the same resistance, which would dissipate the greatest pol:4(30 mcsfhq ol*krywer?


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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 diao xdv h5:i(+oweu2p3ygram, the current through the 6.0 Ω resistor iwop5eyudhoi(2+x v3:s 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 ew44*6boqhu lvu6w r ps)+- ykR1, R2, and 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. Whaurv6q+- wu)4 46epb sylokhw*t 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 connecteddr0x9d8a d9hw in parallel to a battery. S xhdra90dd9 w8uppose R1 has 2V across it, R2 = 4Ω, and R3 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 ra8 xzbv67b1nid ted 1200 watts and 120 volts. What is the maximum value of tz6i 8d7 bb1xvnhe 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 designed +-q bum m(6+dgvpe-3xvwc w-p to operate at 120 voltswwp6mm-gb+qd-3e+vcx ( v-pu ?

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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 dissiypmkef4, gj06c*4 fml pating 36 watts of power?0jmkyflfg ec64*p m4,

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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, 600 watt.” pf 0phwu. 5)stoftbus)0guv (a: .u3xIn normts)0 0.of ( :aufu3.vhsbux wpt5gu)p al 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 be produced by a circui.+l/p hnr/ypnz2 mz l1t lf3v)t containing only three identical 6Ωm h21zl)v/ l. f3 nppnl+/rtzy 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. wthk2kh,cs*/c(q/mj 4n 1pja krm1.ilc 25v qWhich of the following equivalent resistances CANNOT be 5hjs4twqpm2 vkcc n.khma 2/qj/l,c1(i r1 *kproduced 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 cang*l4)*u-vkk )kq;cxb oowgq9n ro jf2)c:hh( be connected together in different configurations. If all three resistors are used in a circuit, how many diffe;o)r *k lhxgq-cbvk2o g9)kchjn*o)f( :qw 4urent 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 5en1+d0 qggi2i lahb6pnfk m-o7xk4 :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 7f+-lioekn id2 gkq b p6h:m1x4nag5 0the 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 yx3njm*4+oadresistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistnym+o4daj 3 x*ances 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 resistance of 12Ωtzniak4: p,b( when operating at 120 volts. What is the minimum amount of time that it would take to w pn k(4tza,bi:arm 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 h06r*o -o (o,mk,zeipxyqfy3 watts of pow0 er3x ym (opk,zh6 fio-y*oq,er?

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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 v9 4z rczzfnr ..3yy/xpui.nv)oltn9zxci)z 3y/..r.rvn zpuy f4 s. If 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 woulda)q zf2q53+ su ognhs0lh,, ow it cost to keep a 100W lightbulb lit continuously for 1 yea0 fw slah hsqoozqg,+,u 2n5)3r 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 results in a power of ynrl9 jl*eb8(xh *mi*m 7qk9a 24l e*j yxb(r k9lh8qm 7m*na9*i.0 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 of six owns a computer.pm(rrud2.- sqp.i./sl i s ps rated at 500 watts in a 120 V circuit. If all computers are p/pu . ppsrl -di.s2 rm(.iqss.lugged into a single circuit protected 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 batte4kt yzk(eo49 nry is connected to four resistors to form a simple circuit as sh49ko ( ytenkz4own 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 resistors to form a simple circu adlcjxp lm/ oi))9o)1sn;7yi it as shown to t1)9/; pijl axom 7dc lyi)ons)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 ideal ammeter, a swiw2 j 72ky(, qogxjfne06aj sj3p0oha/ tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads y2h p 60jef ,sa7 gjo2jo q0/j(akxw3n2.0 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 batteryffi* sfow+p9:, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open a+i 9wof*:pf sfs 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 -b v+y;fna9pg three resistors are connected as shown. With the switch open as shown inp ;- ayvbngf9+ 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 bzp8n 5f (pke4resistance? Assume that all wires are ideal, the battery has no internal resistance, and a 4 8nb5zk(feppll 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 wit6kc,rz ):jdgvh resis:k,d6j r)vzcgtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fit9alvd . q4x06ry y+rf0 e)5nbdbgjh5ve identical resistors connected in a combination serieb6j)r hv 5b05e4a+ n0try.gdfqyd l9xs 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 beloxeiatc;:)5fzpa99r zxrusc2qn e7 4 9w shows five identical resistors connected in a combination series and q9 2) e z ap7 irxrx9tuc4zen:sf;ac95parallel 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 circ yw/ut x;s .bu;kv1ndzn c2o4lo p/;/luit diagram, all of the bulbs are identical. Which bulb will be thn;v;yb kp.;z 4n/s t /dolucl1wox/2ue 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, avo-2e.1 i wtt97q goxgn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper7x iot1 9gogqvewt.-2 es.
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, a7 vj vjy;0;jm;iaj o0l switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperelvjjj 0;7;iyv o0 mja;s.
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 id t; cg6nxrw+e-/s vvj1eal ammeter, a switch and three resistors are connecte e; txr/ cs6v+wjvng-1d 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?


参考答案:    
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