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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 show6ukq 9bcxbz(- x fbbk8:-4z qen, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the dirkkz9x8-b zcq ( 6eq4bbu:-bxf ection 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 paralle 4p y4,upvj/0tg xqq+cl, the_________each resisy +xt,qpu0 4gq /pvcj4tor 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 lightbulb causes the 6ggba *8z/ zumw0mg5ffilament to become z0mf b/8am g *uw6zgg5white 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 rtc+qvmm+1 k :y ;ro ya+tc7o2lights are being replaced with LEDs. LED is the acronym for+tmo1; 7k+ mq ac orc2yvytr:+ 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 . maka0 x fwkg)l2wp;3s.mc/xg*c7 itL 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 iska.smf7xg3al*xpg 0 )wki/.2cw m ;t c 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 mad.lg5+fr o ;:oqt8 ft9tmbt-a qe of the same material. Wire II has twice the diameter and twice the leng:+q5aqlftgt-o8; m t9b rtof.th 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 of the same material but has twice the diameter a qqydnr.9g)37m /lvf,jpezpb u8-; jand half the length of wire X. If wire X has a resistance of R rj ey9 p-. 3 ,j8;u/glaqdz7q fv)bpmnthen 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 radir7k:b uyr(o kappg2 cw *yk2v7;bag*0us r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance ou k 7w7aa c ygr(*;b2pkb *v0:kypog2rf 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 tom z9mp:km/lrn xu928y make a brighter light bulb. He decides to modify the filament. Hp /9mm8umyznxl:92r k ow 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 resistol.r *ghvj4e* zrs are made of the same material. The length and radius jleh* 4.r*vgzof 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 resp wefg*1bzp eamm2 (7w3 +;aof ijl4h z9-n*xbistance R, are 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 soi* 4*e +-gw1wlazafnxpmf(;bz72je3 p9b hmet 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 circuk rgc4y5 vnm6t0h pl* jp 2cd0y02adh+it diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most ny4 5avpd*n yktcc 2 dhjmh r0+600lg2pearly:


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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 tigu /sw q9qx0r8ql -mmo3 m4,yo the right. The three bulbs 1, 2, and 3 - represen,9mqiq l4qusgwym/ o3- mxr 08ted 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 t *d7nb) z0um q.kd+de,s j9ttright. If the current in all three resistors is equal, which of the following statem tb0e,dtm kdt7n.u+qz)9*s djents 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 simpl; : z/v:.vfhqbctuor nc0sq5* e electric circuit composed of 5 identical light bulbs andvru 5zf/*:.0 cq:vqsc bonht; 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 following statements is NOT true concerning o wa45u7nd (ccd/p ioh w*0id-the simple circuit shown where resistors R1, R(n/ c4di7u hcidp5ood a-w*0w 2 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 connec4ldcm/(ubi/ mw52 a d5sdy 2mgted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit eleme2gw 45u/dms2(dy bmcd/ aiml 5nts 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 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 the identified resi07 v:tmwpn uc+stor in :0+vw7mutcn p5 seconds 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 simpt+jy * 5*fwu9fyux d.ole circuit have the same resistance, which would diss x*yf yod5utfu+.*j9wipate 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 diagraji r7o-rct7y6 m, the current through the 6.0 Ω resistor r r-67t7ijcyois 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 connna: :f.e:uzrr ected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 ha: rr: f.aunze:s a resistance of 3.0Ω, 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 different resistors R1, R2 andR3 are connected in parallel8:gb/tubhoq+ to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentqh8 /o:t+ug bb 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 volts. What is tzgl zpi/y* t+yh91vr3 5nn k0she maximum value 5p9k3li h0zy/r*t1+s vgz nn yof 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 q w+wi/xm:hw 8 t53e 0g8ebserwatt lightbulb designed to operate at 120 voqiw3b e5 xw8re/:mt +ewsg08hlts?

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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 dczt .uh.z85jko dg)o6cy3ji f3oh /5fissipating 36 watts of cco5f.)/j 3h.tjh83zi k g6 o zu5doyfpower?

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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 2sg3iqe q mbu,z.o6r6press clothes is marked "120 volt, 600 watt.” In normalr 2z,3mi6e s.6 oqubqg 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 coul)qeb:8pggp5 c-*gi5h 8jknz xd NOT be produced by a circuit containing only three ih 8)e-ip:cjk8* 5g5gpbxgn qzdentical 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 d+y2 8p gpsv4lof the following equivalent resistan8d+vpps4 2lgyces 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 -he2rlzj 3jw r03a0ibvalues can be connected together in different config je02 bj -3zhwari3rl0urations. 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 battery, a total power P is dis :h -da/a4k rl, y0g*btnm,qxksipated 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 resistance of:rmat qak,-hxnyg k* ,bdl04/ 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, are x n/7jojlz ;s(connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the ojj l/zs(n7;xfollowing 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 designed such that-rgcx 34 i27prd slp2y it has a resistance of 12Ω when operating at 120 volt lr x2cd3 7rp4ypig2-ss. What is 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 flbimu 29m: qr8,m7jdeeows through a 4 ohm resistor that is dissipating 36 wattm meq,eid89 : b2u7jrms 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 current when connected to 12pe / (-wx3ad uw f(v(:s8f r6vcs;adwn0 voltufrw(a p (w;cn(-3:vs8fsedva/dx w6s. 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 woudrs(b ,fuv 6ii2y:vy8 ld it cost to keep a 100W lightbulb lit continuously fbvryi(2 v,:8ufyds 6 ior 1 year 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 p:.qy bwl)afi(ower of 24.0 W associated with the bulb. Which one of the folloq: y w.)ilfa(bwing 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 ovy dv.bb ya1(xzn7t 84wns a computer rated at 500 watts in a 120 V circuitnt.b7 x18v zv(y bd4ay. If all computers are plugged 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 battery is connected to four resistors to form a simple cirgx7 )f10u.z7; n zzz4ov acnkwcuit as shown to the righgz)0n7z 47 zac1v;xz ouknf w.t.
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 for+0 5;a uderqy)e;ik0tdzp14un wv9 xaodz 4q5m a simple circuit as shown to th4yxd94+n1 ;erwuvq)aq5u z00 pzed o tk i5;ade 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 ide2sg4 eu .mdcd6ns7w0v al ammeter, a switch and three resistors are connected a7e2cvsn.w 6 ms0du4dg s 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 ammeter, a switch u4 pxq rx(h1 w*b5+x riviqw:eq.)3 sband three resistors are connected as shown. With the switch open as shown +*b eu.q )1:xvpqrrw4xib iws h35xq(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 switch2gk3dqwe,imzld0 afu)r,e70 and three resistors are connected as shown. With t,,zrqfi0dumga 70k e)elw3d 2he 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 equi p7 c,9dqpf f,jjwi+jia(/rf 1valent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistanci+ fa,p1 i79 jdjfqrpw/f(j c,e 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:tt(;,u nlhwt-cwz u ) resistance of the circuit shown to the right with resh)- tt: l;u,z (nucwtwistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combiq 3+, ocbqq,nination series and parallel circuit to a von3i+, qc,b qqoltage 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 ident ;o nbzs05jv5q,xq r2+q:pggjical resistors connected in a combination ,0sz xn:qgg; q bprq5j25+jvo series and parallel 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, all10 p2 xcku0c4x yguye42t,e ye of the bulbs are identical. Which bulb will be the brighte0p44,eueyk2tugeyy0 x c1cx2 st?


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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 switcdl x9gq)qe)-msf:yi3z-* a h wh and three resistors are connected as shown. With the switch open as shown id- yf*)e ws3-gxl aq9)q izh:mn 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 ik54 fo0dff o7three resistors are connected as shown. With the switch open as shoo04okfi 7ffd 5wn 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 ammeter, a switch and three resistors are coygmo5 2e qr.7 8qi.y5xrlis1wnnected as shown. With the switch open as shown in the diagram t q.i2gir1s .yrxloq 8y7ew5m5he ammeter reads 2.0 amperes.
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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