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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 te24 l1 1mk-ty6crkwh dhe metal resistor connected to the battery. Which one of the f-62w1t1r 4mkch led ykollowing 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_________eh)((pnze;ipitdurb/ 8 mh0(tach resistor is the stm( nuph t)ibd8zp (h/(ri0e;ame.

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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 thegx7 1y6ikgh)e thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to theg)xy1g7khi e 6 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 yimgthyzuwv 6+7wab9 :(u /+sghd;1qlights are being replaced with LEDs. LED is the acronym for whic gu;wv9:ydsthau7+1g(b6+qmiw yh/ z h 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 L and cross-sectionayf;bn:, 2e/z0 sr6,0 cwpxovrp c.fjkj0o/ knl 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 resistivityn se6ocr;// vpk0:.jo2ffpr0,x w0 bycn jz,k 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 wir-bm24tzfr sett3zt5(;t4 e bsx sz i+y4v st8+e II are made of the same material. Wire II has twice the diameter and twice the length of I. If 42bez zmzsv+xt ss84e -iyft( r ;b3t5t+t4stI 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 diamete 3qz(k lk(re5tk+qp3l r and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance(5kt3 k qep +lzlk(3qr 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 (w :netf 1b)na-reiyj :48pedlength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L.bn1:ayf )-4tewpi8je( rd :e n 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 bg-t 5tmh ;a*+lq5awx +.jcgs fyyf4s,righter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more 4+a. *m gsafwcjsh+qg y55 ;ftly-t,x 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 cylindricalh97;:k 6ka1zbd m xisx resistors are made of the same material. The length and radius ofix9:6; kbz1da7 mhxks 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, etd5r5e jx3 m4 p(c0fyqach 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 resistor.” What isqr4d (pcxj e t50ym5f3 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 ci1fue64 v:o wpjrcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 216ojwv: eu4f p5.0 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 cmz*oehhp5a g5 :76k0jqafbw ,ompound circuit shown to the right. The three bulbs 1, 2, and 3 - repmqk :e pahw, zgjab*o6h55 f70resented 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 rightj(u q*m : :1olca70nve gf81upaw g+jw. If the current in all three resistorc vlj ( ogw7*a8muga1u1j p:0+:nfewq s 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 at right represents a simple hi7ig( lzx;6 jelectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbslzh; ji6xig (7)
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 followiok78 .0ju a1)c pawgxkng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal res0c7w8jp ox). kkau1gaistances?


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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 ihzwve:)-.p *t *fbwy in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elemwyf-w*zh e.p * vb)t:ients 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 u. 9xj w5j.ina through the identified resistor in 5 seconds once the circuit was closed? jj.x 9iawun 5.


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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 sqdig5 *ra *oe5imple circuit have the same resistance, which would dissipate the g5*rqd oe*aig5 reatest 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 currenix i+b6lb*8wq t through the 6.0 Ω resisto8 +x*wqbbli6i r 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 in seriej8;5w,xv rq szs to a battery. Suppose R1 carries a current of 2.0 A, R2 ha8 vwjzr5,sx; qs 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 paralle2xrmlyy lh5yml +n- i9/r,cp4p.q. ab l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wha y cr4llyn 9h/ il2qb+.5mx -mypr.p,at 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 wa lfos u9zg.-mun3 g17mtts and 120 volts. What is the maximum value of t3zm f7-ln9 uo1.ug sgmhe 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 :7 ;yflynxlqy)-lvy+ y 3ca5 g60 watt lightbulb designed to operate at 120 volts g7 fvyl5yayc yyqx; -3l+)ln:?

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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 flut* rp4s7i/8s 7hjq bxows through a 4 ohm resistor that is dissipating 36 watts ix*4phsq7brt7j8 u/ s of 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 i(tfg*zw**ldz s marked "120 volt, 600 watt.” In tzd(* lg*fzw*normal 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 circuit co6nl xy 69v;sr3a7 dyofntaining only three identica36dxfvy9ar s6 yn7l;ol 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 of the following e,vsjg4q( 2/ zrfaal;equivalent resistances CANNOT bef(vega/ 2,;a4jz rlqs 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 values can be connected together in y b7dv oal 8i,+nc4 5fm3:qvh*cy4pj rdifferent configurations. If all three resistors are used in a circuit, how many difoni f+mq ,v4:lpyy5c hd*84c3vb jr7 aferent 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 resi fy+w :5*q38-/jtkv czsuxzob2 +zutzstor is connected to a battery, a total power P is dissipated in the circuit. How much totaq2b/vtj wtz+z xco3 yzu+5*fu: k-8 szl power is dissipated in a circuit if n identical resistors are connected in series using the 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 s/4lqrp lf z8s:0 qmn r;.z6r54nyr:lb ahq-f and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistancbzqn;r5: n6 r0ls4a4: plr8smlqrf /.fzq yh-es 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 jap oekdg );;dj+8i7hoperating at 120 volts. What is the minimum amount of time that it would take tog; )8jodhj+ edk ip;a7 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 d*bk;4pppg8l x3y:acflows through a 4 ohm resistor that is dissipating 36 watpk8*dl:4 axpy3pgbc; ts 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 connei5 b /h5l90qq y.cjcst5*yj za,wyl2scted to 120 volts. If the price of elehl,cy9w2 55sj /ylsbjcai*q .tz 5y0 qctricity 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 howf6k7jclrxg * ; much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate kf6gx 7 rj;c*lof $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 znr *jv,+mbp gm0ht9( of 4.00 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 lightbulb(mm +t9g *rph,jn0 vbz?

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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 dt7xl j26atbi1clih: xex.4m (mi ;l3rated 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 thect.ehm i a1xbt7x; x3iilm l642: ldj( 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 con,,bsv ,ctgz5 tszq6)h nected to four resistors to form a simple circuit as shqc), btsz5g ,6zvts, hown 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 conn+jke d+3m 7adm ifu2w+:ea,ueected to four resistors to form a simple circuit as shown to m+:+ uueame2 fda w73j+d,i ekthe 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 ncox 5z3iyjr6(-47q zowt;mb, an ideal ammeter, a switch and three resistors are connected axztc;bo( 7-ow35ji6 4mqzr nys 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 batt wb3a..hm ji1jery, an ideal ammeter, a switch and three resistors are connected as showbiajw3m.1.j hn. 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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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 switchylcn(9hs( t8 y and three resistors are connected as shown. With the switch open as shown in the diagry8cl s9h(ny (tam 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 c,, te yr5x nhwml8l 5;7k8a rm.w-eccresistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idkc8l renle ,-h5t8 xa5.cm,wyc;7mwr entical 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 lo. o 1za (*rm8gmkf3sm6(ofdof the circuit shown to the right with resis fmm.6r( fz slkgm1d8oa(*3 ootances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectez8f06,y5( ki 34fmet g qlfqtyd in a combination series and parallel cie0zt5ifl ( f6tfqg 4k mq3y8y,rcuit 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 belowz.km 4e6nv gj9 shows five identical resistors connected in a combination series and p6k m.4z vjg9enarallel 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, all2k/ )vqo1sorn.v wo g5 of the bulbs are identical. Which bulb will be woq ov5n2)ro.sgv/1k 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 switch and three resis,k8: rf iw7f 5iyladm-tors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampekw5lrmidif- f87a y :,res.
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 batte k0pdze8dt 8/4akctdyhj+x ;42 g.lvbry, 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 amp4k8hvd0 j ext.z k t2a;cb/d4ygdl8+ peres.
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 +nfv *zmj dsvf3fk)1* connected as shown. With the switch open as shown in the diagram the ammeter reads 2.mf * 3nvzv +fdskf)j1*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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