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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 e tzfj +9nb )t+:waxvh ila 5an5d1;9gthe 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 electric field through the interi5df9hgt9+n e iaablz1 ;xn w):j5at v+or 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_______f * cw*(nri:ix__each resistor is th*i*xi : cwfr(ne 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 u 9bmbsdxy)j2,k:i6y wire of a lightbulb causes the filament to become white hot, while s)y d:uimbyj96 b2kx, 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 lights1 :c34. pdx dquuvvc*y are being replaced with LEDs. LED is the acronym for which one of the followin:du3p.cc y *14vxdvuqg 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 gracl*4t.rdi yj: phite resistor has 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 new length is 1/2 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical resd . r4:lcjt*yiistor?

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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. Wiz 68fyo7 fa;)zlb 6+phsrvh. tre II has twice the diameter and twice the length of hyf7hz.tvr; za8fl 6bos+6 )pI. 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 the same material but has twice the diameter andmd)gh.mk . 1()s dbmxdz.q/cz half the length of wire X. If wire X has a resistance o.(db zhx. m) gmczq.m)kdsd/ 1f 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/p l3*k x :-gbow ivn:/bssb:l length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materia v-nl sb:3:b/wl :/bpkx*iosgl 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 7kvhe-t3*rcp vfk+g-to make a brighter light bulb. He decides to modify the filament. How should thgvtc3p +-7h f-kkvr e*e 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 resistors are made of the same mat-79c5uac whjgerial. The length and radi7jhc u 9gcaw5-us 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, arh r-4d,ezkic 1e 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 resistor.” What is the equivalent resistance of this arrangement of four resistzd r k41i,-hecors?

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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 f 4e9pee;+ l-nukafe- accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter refue a;9-fl pke +-n4eeading 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 thx8a;lbxzv( +(bgpo )c ree bulbs 1, 2, and;a (p(bb vcx8log x)z+ 3 - represented 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 cirk15:j1mrj tzqcuit at the right. If the current in all three resistors is equal, which of the following statements must be true? :t1mkr 5qzj1j


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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 represent a9ewnowi)19 ys j8se+33 emyts a simple electric circuit composed of 5 identical light bulbs and 2 flas 3)e1omswee93 i+yjwya98nst hlight 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 yc- x:+fv r 2k5 +fqi,j1gmxgzis NOT true concerning the simple circuit shown where resistors R1, R2 and Ri+jx5zqg1 xyc-r2 f+vg f,km :3 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 Xfram;lr;- v+a 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 parallel with each other ;l a -ramfr+;vto 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 b 4/vi1o4iaov 0a5oex will pass through the identified resistor in 5 siibvxvo15 o0a4e/a4o econds once 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 cic 7qvr4hfuk)p;oorr ob :v/tqz k29 2;rcuit have the same resistance, which would dissipate trfrvpoq z;o; c/vqb:r47ouk2t 9 h)2khe 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 thrpp bggdo (f;c3 m.-ap;ough the 6.0 Ω resistor is 1.0 A. What is the powec3-; bgfom ppp;(a dg.r 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 R1bmf zv;3 x**mvd i:j1p, 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.*31i zmmfjb:p;vx*d v0Ω, 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 different resistors R1, tps(d f**v .gdR2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentt **vsd(gpdf. 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 120ww j66 8yceayzm45+pb 0 watts and 120 volts. What is the maximum wyzw5 y8j a6bce46 pm+value of 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 li 73n5ywdicejvi.. u.kor,gp74w, wj eghtbulb designed to operate at 120 k,.i eu grpij n7w5e vo.4jy ,w.7wdc3volts?

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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 36 w:q urjr ) r-hof0z,c/ mkpz2r7atts of zm7,p jz2k -orrrq:rchu ) 0f/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 markede8fw +4e m)h,wu-b/eowp pmu; "120 volt, 600 watt.” In normal use, the current iuwo/);b,e pu-w pe+4e8 hwfmmn 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 0kl/ghg:xz0 gcircuit containinkl:g/z0 0ghx gg 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 resis.1g i*xlp(yo i**5gqh o:5 g/iouxbgbtors. Which of the following equivalent resistances CANNOT be pro o*.hx 5 giugb51 /gyi*(bogol*: xpiqduced 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 connecte/jlb gqmz jup3;3fz)v ;oui66d together in different configurations. If all three resistors are used in a circuit, how many dibvjzf;qm p6 l36gu u; 3ioj)/zfferent 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 totusaujn hrvyn;n1;7: ,al 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 the internal resiu,j v n7nynr;sa:1; hustance 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 resigc8sf* rmfmfw;. :8z *m)nourstors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abouz;*ru rnm8*ow:cmg8ff . m) fst 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 haseq22h)o( u5xxs ops vt )k,:kn a resistance of 12Ω when operating at 120 volts. What is the minimum khkt2)xn2svx ue(: ) qpos,o5amount 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 / buuec+gj14) dn p0eh4 ohm resistor that is dissipating 36 wab)pgc eneh4 d1u0uj+ /tts 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 ampx7ms/mm3/ q uweres of current when connected to 120 volts. If the prim /q73swmmux/ce 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 lo53 c15 4g f3hnfw3kapbvsb 4iui6:ux ightbulb lit continuously for 1 year at a rate of 4 1ui4 hwk536:f pbv53bof axu nsci3g$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 wvvn+u z2it,. r h)au04.00 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 of the lightv.+vauunth2zi,)r 0 wbulb?

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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 s m/3eydm fnjzlo6cv5+1;1h f 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 is the maximum number of the l 1 13+ m5jmehncfov6sd fz/;ycomputers 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 simple luxwls1: 1vth * pf;qqvonde ;z7. xm3 3t6*xjcircuit q: oq;fx*elu.v;mp ltshvnw 1163* x7d zjx3tas 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 resistors to for9q (j e+ih. )crs9sh/dyzr 7ltm a simple circuit as shown to th 9shh./sj d7ez +9yr(t qlcir)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 battery, an ideal ammeter, a switch za4 v+st-xnsqy7s b7 n )ooy0jf3;*azand three resistors are connected as shown. With the switch open as shown in the diagr+j *z ) nxboazqy -3sa0ysnv7fo;7s4tam 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,kl0s-iuz c88hs,0/luyw u 7em. 9hxdx a switch and three resistors are connected as shown. With the switch open li88s- . x /dym7ezuul0x9,0h ukwschas 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 resisto*4zkinhvd-f +vt+ j9dkk j(5 3rwxe.qrs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am(5. i-kjrxwq*t4 hn +d9+ fvkv dezkj3peres.
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 res1ss;4oetkg , vtq8+gg istance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ,gtg48;kssteg q+ o1vhave 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 with resya+6k +0xcnkoog vhq l+,;w,distance6++;l xv, o,o0k+ gnkchayqw ds $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a comd 06t9 srtib5k-u con5pp3a /tbination series an0a3opt tp9- i5trsn/kcudb 65d 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 identical resistors connected in a combinatcd ) xquzh9abnd1pj -0c7:(vc ion series and parallel cbc():pd-1xnjhdz0 9q7 aucv 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 ot xswy 4a )cuupxut 9w37801wof the bulbs are identical. Which bulb willyawcs)98w o4ptxu xw7 t 0u13u 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 rb73fko*9 .hez g7 allideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrakfzb9r hg3* oela7.7lm 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, anj2p*znbuz87-vr1 phv ideal ammeter, a switch and three resistors are connected as shown. With the-8 ujbprnhzzv* 27p1v 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal aw5.jlp 7vmav +mmeter, a switch and three resistors are connected as shown. With the switch open as7alw.pj +5m vv 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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