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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,vme-h/: shd8b4eogj( an electric current exists in the metal resistor connected to the battery. Which b se(dgh8jo-e m/:v 4hone 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 paraclnftvp )9i: /fee+ 1hllel, the_________each resistor is 9e+pfct)hi/ fel1: nv 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 li-efkh/r 4 3nanghtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens benfr4 k3ena-h /cause

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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 are being re*8w2f1kx fn6yzj 9k7m, qyjr vplaced with LEDs. LED is the acronym for which one of the followzjf,v29w8k1 q*7 kmnj fxr 6yying 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 r9;vjk67zdhohumq l* s95 d4dzesistor has length L and cross-sectional area A. It is to be placed into a circuit, butzj 796kd9vh*l z o;5huqmsd 4d 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 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 materiahnxf ,g4d s zc da uoz)gq,)86s;7c9swl. Wire II has twice the diameter and twice the lengu,;7cz dg qa8h)sg6 xwf4nzd9c),s osth 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 vvw j ec99 83l-ckeh+mb;j56qcivl,adiameter and half t cecl,jvvmh c+89;q aj5bl vw369ek -ihe length of wire X. If wire 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/umyrotlniym *; 4.;4 lp quc5 radius r. This piece of material is then drawn so that it is a cylinder with newi; /pc4tyr;m*ml. qlu5 4n ouy 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 bulb. He dk0 in*gpwqbj9/1 bok5ecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a giobnw01b/ kk9*pi j g5qven 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 ari wo 87q0 l)dvm1i1okf xvb3+pe made of the same material. The length and radius of eaxld oi+ ) p1w3170ivvobfk8mqch 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,er3q xd7k1fkf5+x(bk o/ o 4az each of resistance 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 set of three resistors is connected in series to a fourth rfq41r/kfe axb+o d(kx 3z57ko esistor.” 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 accompan -rw-58zfjajbp)7 g ybying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00gp ya wjbr f7b-8z)-j5 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 s1dg gnns 3o43wafr*d,hown to the right. The three bulbs 1, 2, and 3 - repres s d,gf3wnnra43gdo1*ented 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 ci6 yt3q4*ll*tr r -izueavr-cv7b b1z2 rcuit at the right. If the current in all three resistors is u3r2r4 l bz71 *- tvt *abqc6ezvi-lyrequal, 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 simplw kotmy,(-6) tigh4j1()fuy0k hfx lle electric circuit composed of 5 identical lighto yfhmw(l4()-tj061 tliuk)yf g x,hk bulbs and 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 the simpl1jvu1pqo ss myy4.h c4g+ -8qwio vm(aa37qd .e circuit shown where resistors R1, R2 and R3 are have equal resistances?31d8y.4cq avsqa.o(suj h m7q+4 -owy igp vm1


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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 is bri753hs z. ugi 4;l2owz6asvvzyghter than bulb Y. Assume all circuit elements arsswyv47 voa lu.iz5gz2h3 6 ;ze 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 identified27 0sxtv m8ev -qs0woa resistor in 5 seconds once the cirx0-0o twea78 svs2qvm cuit 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 tk-6rfun t)gb1cx1 i p*he same resistance, w1c)t1rp*6 kubgxf-in hich would dissipate 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 6.0j-f.;fdb fp/ l Ω resistor if-./ lb;dp fjfs 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 in ser j*z1vz+eejva dr(66kies to a battery. Suppose R1 carries a curre66* dv1j(ze+kjvzra ent of 2.0 A, R2 has 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 c.7 zqc( g)g,dy pjt-uandR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3,qug(dp .gjzc-c7yt ) 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 watts and 120 volts. What is n 56f wt2si)a6 bqnjnf1g5vo /the maximum value of t5 j2a1w/oiftnsv q6)bn6g 5fnhe 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 o 1g uy7 w:tdn tj*u7jh*jw.fl:f a 60 watt lightbulb designed to operate at 120 juwtud h7 yjl*1:jg.* :nwt7fvolts?

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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 dir6,,4 b:lbxj0i jrsd mssipating 36 watts of powerbjirx b j: 64smr,,dl0?

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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 u mm8n r2oc +sr.9qr8k me:+zjased to press clothes is marked "120 volt, 600 watt.” In norr2r : msmmj zoan+kqrc988+ e.mal 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 resistanceso566 x.h /x l5zminotv could NOT be produced by a circuit containing only three identical 6Ω resistorst.vh xx6il6on zm o55/?

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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 folll wk/ ,dpikmor)u)e/ 2 pjfl35owing equivalent resistances CANNOT be produ foem3p)/jw ruk lk5pi)d, 2/lced 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 toget2kc u0hbtd bav) q ,:8a1nxne)her in different configurations. If all three resistors are used in a circuit, t8e)0dbxv,) hu: nq kbc a1a2nhow 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 connectedzka3*hh9y9 / p+ q0sdoz/r7heg1rus nz0v i9u 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 the same battery? Assume the interni aspz//3+9 g svze1 h979orh uyquk*zrd 0h0nal 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 anm*xgkplh ;vge4g ;*2 od R2, are connected in parallel, the equivalent resistance o ogmx;v*gh klg4e*p2;f the 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 designed such that it has a resistance of 12Ω when op,ze6a /ncrh xs cr670gerating at 120 volts. What is the minimum amo s7c66gz/rer h,nca0 xunt 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 fl+qrvd/k.v) m1 rszs zm mv(3j5ows through a 4 ohm resistor that is dissipating 36 watts of p vrdkzjr+ ms /5 vz)vq.m13ms(ower?

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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 a ana(j mw6uy,-vxv*g+ auk6t5mperes of current when connected to 120 volts. If the price of elec,v-m5vkun*6jayua t6(ax gw + tricity 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 o*mdndtwyzdd *- )dc:r5rz6lo// a , jhow much would it cost to keep a 100W lightbulb lit continuous:rddzl- cya6o) z5/mro,ndj*wddt* /ly for 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 lightbuy if:mc3q ot/ 5n2/ux*s4bzmq;9qhcb lb results in a power of 24.0 W associated with the bulb. Which one of the folqi;hbuy39sc5/oxqtmc2 z/mq* b 4fn:lowing 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 ofrzxo1(f( )p.2 a v(uikkrdo k1 a family 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 is the maximum number of the computers can be operating kk2p oaz.i( v1f)kr(rd o(1xuat 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 h 6,k5/dugdra resistors to form a simple circuit as shown to the righu/ adr6dh 5,kgt.
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 sqtc7s l7 ;tjm 9ba/ ijw5m05mo:vk5uto form a simple circuit as sholuqs55 v7mcta9jmji ;ko5bt 0s/ w7:mwn to the 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 hb /1y+. tnx k:u. b+;w 4alqgwg jazpdw*k(r(and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a4h/ jww a++t:ub.a;n(zp*gx b.qrlk( 1dkg wymperes.
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 switq, smf0-j.vc) bi+kq1 erqix*n he i/(ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amn,+f 1)q.i /*xs h-e(r0kqj eiim vqbcperes.
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 battevtfav:f3 +eop; z/g4 dry, an 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 amperef:pao +fv ze 4/3tv;dgs.
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 t cepc-6 .4mngpgs4cy c58ct e*he equivalent resistance? Assume that all wires are ideal, the battery has pg.ncy6 54cc8 * mce4cpseg-tno 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;fjf t/gr g)f4 resistance of the circuit shown to the right with resistangfgft;/rf )4jces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 g.0;ejil gou8 shows five identical resistors connected in a combination series and paralleje 80ilg go.u;l 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 comb g-yh7t9 tg fu4hk78cuination series and parallel circuit to a voltage source.9 ckhg -ytgu4 8ut7f7h
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 are identicacv uy.dym2, .gl. Which bulb willy, m2ycu.d gv. 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 ammeter, a sv5wrnsi2 yp(f9a0u *u witch and three resistors are connected as shown. With the switci 5wy0u uvrn*p92sf(ah 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 resistors are conn7e rd.,a-k lqiected as si 7a el,d-q.rkhown. With the 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 ammeter, a switch and js 1j((p o.f.x/tj dpjthree resistors are connected as shown. With the switch open as shown ixs (t1jpj(j./fjp .d on 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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