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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 shof-;tv0kuji0hyqkcg4 b l9 8b 9wn, an electric current exists in the 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 in t 9iq0;jl0kuc89bhyv4-bg kfterior 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 res aaz1t/w;k/*f rcr q+jistors are connected in parallel, the_________each resistor izf1waa/trrk c qj+;*/s 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 filamj7aj0a7lw , ;o6sr ljaent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to 7ll 0j7s;,r aaawo6jj 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 lai0c (v*5 htf:ysnouy fth 3/.ights are being replaced with LEDs. LED is the acronym f.3aonsyt*y0: uf5 fth (h vc/ior 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 L and cross-section*3xo o8clw y;sal 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 o*xs w3coy l;8is 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 material. Wire II has twice t(bo1: ymc .mouycj 9d,he diameter and twice the length of I. I9: .co cm1youyjmd( ,bf 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 t/iqf ; a*zqt5the same material but has twice the diameter and half the length ; *fiz/aq ttq5of 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 radius r. This piejr: mb;v,8 o yew+oy:*h pws5kce of material is then drawn so that it is a cylinder w ,bhs8e+voy oprj:w m:5k*yw;ith new 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 +2 r:h-rlf+gdnae v 6hbrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prod+rad r hh+6:nvelfg-2 uce 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 material. The length an/gy9ok xs*e i6 jkvau5wan294d radius of each resistor is:x9n5ga wu/oa6 jsi4k*92 vyke
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, are connected to a 2beplq wlr239/6pvz9:fuov32e u o acbattery in the following way: “Two resistors are connected in series. This combination of two resistors is connecte/z 36 r9w23b fo2lp2ev9:v upace qluod 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 circuo(s w.sfwpa9 7uy ,9lhit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reaa(f7,s w . ylohwp99usding 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 z6 w.v57zj vnashown to the right. The three bulbs 1, 2, and 3 - represented5v.jv zaw z6n7 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 ci5*h ws1 q6*vpo.w;vfm/lldo h rcuit at the right. If the current in all three resistors is equal, which ofvl*dvh 6*/oml s1q; .fhowwp5 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 composed of 5jlk 7,uz- c,qs )wir18j ha8wf identical light bulbs and 2 flashlight cells. Whichhz7 8 rul ,wk)jj wfa1,qi8-cs 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 sim6* snsbpilx4 -ple circuit shown where resistors R1, Rps4s 6-xnilb*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 connected in ser ()1 f9-zr mckkcux9rf0 rhfy;ies to a battery. Bulb X is brighter r;-fux10c)zk (fryr 9ch 9f kmthan 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 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 zxvp 4h77d df3 the identified resistor in 5 seconds odfph73xv4z 7d nce 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+ +c*lvgjsnk2 following simple circuit have the same resistance, which would dissipatekg cjlns* v++2 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 6.0 Ω gap n1*3qp2dug0d5 jtm0ucsgwp 90g+resistor is q9p2+ *pnujpd5dggg1 s cm g03tau 00w 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 *habceiwfk l *;d*z*7are 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. What is the voltage across fh7cbe*l ;dak*i*w* zR3?

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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 g0)qj5zc 9uv eR1, R2 andR3 are connected in parallel to a battery. Suppose u 0 zcq59gjve)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 rated 1200 watts and 120 volts. y66caio)(3)m iqm tfi What is the maximum value of the current under these conditiomq ca6f)6(ti) i3om iyns?

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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 to operate at 12b )k-17y vmhqajnt v;,0 voltvmby ah;,k7 )1vtjnq-s?

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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 di /8k/*aof, r lidv enz,ay +;rwqblh:.la.n3 zssipating 36 wat,+ziwrao*n,aklb:3 /h/q;d vl f.y r le8. znats 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 clothesn ki4 0j*.*g3rk zugto is marked "120 volt, 600 watt.” In normal use, th gg0rkj34tku.i*o z* ne 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 ijckq18 )vq d7ifoe :l ::vl9ja circuit contain :jj1cdvq:i:f9v l7qolik8e )ing 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 resistors. Which of the fo nioyhe(u*u; )llowing equivalent resistances CANNOT be produced usi)*u uieh;yo n(ng 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 mpnk( r9ej rkz7*n+iubj-e7. different values can be connected together in different configurations. If all three resistors are used in a circuit, how many difkz p7 7r9jknb(i.+ee*run -jmferent 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 battery1iqq;b .,k9s8g)yieym py0g y, 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 battee ;q8.,gik01 sbmgy9 pyiq y)yry? 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 Ru b1:;los9ls m1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances :9ssm;luobl1 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 s5o x 9yg16wpxuuch that it has a resistance of 12Ω when operating at 120 volts. What is the u5x gwxp61yo 9minimum 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 flows through a 4 ohm resistorl.d ump 0g fym2/l3: gsp1wj8bx-ifl / that is dissipating 36 waplw3:p28d/ b g-l mfuml xy./jgi1f 0stts 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 heaterq xyf+ gv 4p7s)d5dx;a3x ptd6 draws 13 amperes of current when connected to 120 volts.d3 dg;p pysx5t7x)q da xvf64+ 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 wouldaen 5 oa: f(4trg8l;kn it cost to keep a 100W lightbulb lit continuously for 1 year alntgaarfe( 8n k :4o;5t 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 43s rui)(3/ *d gaymux-l lut ,2utnye(.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 thu *m)td3rigsuxn3u(l 2 yeyt-/ ul(,ae 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 rated at 500 watts in ar22/+zsphw m d 120 V circuit. If all computers are plugged into a single circuit prote hmw/dzs2r 2+pcted 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 -.pd0y-z iv ,gkgh.t8*mqs dcform a simple circuit -sqdy.gk ivg8.mt0*phd, -c zas 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 batte q*; doruhftr62p1l5iu dyp l m31.h3wry is connected to four resistors to form a simple circuit as sry.11fp 33wdlu oh ri ;dt2 5plh*uq6mhown 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 and three resistors a7sq7rtq -1j uwbjo+l 9re connected as shown. With tho ub+ jr1tql9wj7 -qs7e 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, eio:d 2jk(pm(a switch and three resistors are connected as shown. With the switch open as shown in the dia:ek( o2di(p jmgram 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,mf6 gm0-zco (h a switch and three resistors are connected as shown. With the switcm-goh cmf( z60h 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, whatxf .o 8ck.kx7ss*v ag6 is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistanc8. vxkkf cga*o.67sxs e, 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 res hj05 (bekq,qxam9 gs9istance of the circuit shown to the right with resistances9s( 509m bge axjq,hqk $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showy eij.5nfbg5 0s five identical resistors connected in a combination series and parallel circuit to a volta 5b5nf.gij0 yege 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 belowa7i/e8hhfoxf:4bggq+a 2 5 r ch w/-mh shows five identical resistors connected in a combination series and parallel circuit to a i -hfac h 87/ /h4bg2ro:ewm5 g+xhfaqvoltage 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 of+a/ hw-* s0r8enifx pi the bulbs are identical. Which bulb will be the brigi8/-h*rfw xi nsea0+phtest?


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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 idea l( hozza(d kp8*0quq0l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramahz(0l qk0 (opuqz*d 8 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 switchu4ccoeddg bt-b u.4 m.-zd+4j7f7sgp and three resistors are connected as shown. With the switch open as shown in the diagram the ammedju.petbd .g74 4-uc g+zcbmfo47ds-ter 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 swrfeuf;761f /c 3w3yq dbi72mf9ubhsk itch and three resistors are connected as show97h 1qk 3b2wfuc3f i/6dmesf7f ;yubrn. 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?


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