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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 exis .-1+.kg fnp8 lojlidy/2.ge qf4geevts 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 interior ovyel4nfp21e.g.+fi old 8 qe/jgg.-k f 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 arogz)a 2z*f0n; 8+7dtjt wqi*pk 4hedze connected in parallel, the_________each resistor is thtfdz8*i+ )ejqog*;ha4 nktw2 p z07zde 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 filamaun -fhz;7i q5ent to become white hot, whiln z uqaifh-7;5e 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 ligh9s b8la w:,erkts are being replaced with LEDs. LED is the acronym for wh,ak9rbw:8 lse ich 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 resistq, 9hm4qy+wmyor has length L and cross-sectional area A. It my4q+w y9m,hq 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 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 :* z.f syjuo(vII are made of the same material. Wire II has twice the diameter and twf.yjsz (u*ov: ice the length 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 diamet tv 5,r)(sqv98ovr ppder and half thev8t)vqdr ,(5s ovr pp9 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 radius- i:)8qruyrh hey5/ wug k:1dc r. This piece of material is then drawn so that urd8)r/ uci:5k-ywy hg 1qeh :it is a cylinder with 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 brighter light bulb. He d ps:8lj8ec nl6yql9k5 .g k;bzecides to modify the filament. How should the f9 z cq : gb.lnjlpsyk6elk588;ilament 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 ar2at lk2.iw(+m0 ikazwe made of the same material. The length and radius of each resistor ki+w.t2ml2ik aza (0w 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, are connected tosx/sdd9+ywatup 4::1 b d dmi6 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 resista:6iu4:9d+dbm p wx/t1y dassdnce 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 circuit diagram has internal resist;lw2 hu 0keo yujf)l)0ance 10.0 kW and the ammeter o 0hjk)0ueyulw 2 l;)fhas internal resistance 25.0 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 compound circuit shown to the right. The three bulbs 1, 2, a n96k(6pc)y ue9z8onaq.l el ond 3 - represented as resistors in the diagr e9a.o6ecyo(zpu9k 86 q)llnnam
- 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 right. If the cy ,uhppk)+fb:1 iiu.a urrent in all three resistors is equal, which of the following statements must bfi k+,p)1uh u.yi bp:ae 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 reprew)pt (e 2vo2j 58jhuxcsents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whie v2)pt5jwch 2 xo(uj8ch 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 phhcear2/r 6+the simple circui r6h/par2+hect shown where resistors R1, R2 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 series to a battery. Bulb )tph b6 pz8gq4X is brighter 6z)8 4bqthppgthan 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 the identified ro-h55 fk6czq7-qujjq esistor in 5 seconds oncez-ouq5qq 765fh-j jkc 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 ;obru 0s- 6)mh m8jq 5cvqvpe9 following simple circuit have the samevo;qp9bm 8ecj m6us0- h)v5r q resistance, which 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 throug( 3z gg8sw:gfah the 6.0 Ω resisto f8(ggw zga:s3r 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 arapw kefv 54e+*e 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 if*ak5vw4epe + s 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 connectg0u vi gf;kd50v5(r.rrif, syed in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, anf0r dis ;ru 05.krv5 v,(fyggid 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 w4idffb-w :y gc9,e 8bhb9,risatts and 120 volts. What is the maximum value of the current unsy 9, chb8w:b-eg fd4,fbi ir9der 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 resci m kig g+moj5 ; 35q/1mo0qljclo)5fistance of a 60 watt lightbulb designed to operate at 120 volt ;m) l /oo0o5g cik55cm3i jgfj1m+lqqs?

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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 p ht(h6q( t3wsflows through a 4 ohm resistor that is dissipating 36 watts 6hst( w (hp3tqof 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 marked "120 volt, 600 watt.” Injtlzd+*85kefk5t;5di+ xmas normal use, the current in it id+sie5 j5lk8 tzxt5a+;*mkdfs

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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 r neu3(ov/gd yrqi6kx 6q28f :following resistances could NOT be produced by a circuit containing only three identical qvoy8x/2er u6g i(3kf6q r:dn6Ω 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 tt(gnpcu gyi 9p 4td326hree 1.0 Ω resistors. Which of the following equivalent resistancei3n yptt pg94c g2du6(s 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 valuesub5ojn9lr( l 0zkbez6nt7g 2v9z- jm2 can be connected together in different configurations. If all t 5eu2tllmkj7nz zvj(6z9 bn o90g 2b-rhree 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 battre6;+v*x xcr hru/ c-t2xja-gery, a total power P is dissipated in the circuit. How much total power i x+jr-c2/r tx-x;evgu r*h c6as 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 and R2, are connecteqp-w9vg /obh+uf1c:vk2b ca: d in parallel, the equivalent resista9b w:-+ao cquvckv12bg:phf/ nce of 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 operati / wnroaa xo3oxhb0-d )mio762ng at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg oo2o mo a oxaxr/0bidw763n h-)f 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 uer0w x8s/:o wa 4 ohm resistor that is dissipating 36 watts ofrsw uow8x :/0e 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 connectnxwuybov - d/ 0 g8dzm/tjej1kcyu64(ns/ g63ed to 120 volts.j cm/y/seuw - tz6vdn0n8(uo/j byxg643g 1dk 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 would it cost to keep a 104c,ont j0lfa *d wo**o0W lightbulb lit continuously for 1 year at o*lo 0aw o,4 *tdcjf*na 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 lighbcqcw6f k/ 0:rtbulb results in a power of 24.0 W associated wq0brc/: fwk6cith the bulb. Which one of the following 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 owns a computer rated atvtlb;he) oze 7q,.9lq ) 5xqha 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 at the sametim;xea,eqt 9.7 )5hlqoq l vbhz)e?

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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 tk mhyd d75)6jg(juon 4o four resistors to form a simple circuit as shown to the right. d5 u(jo m6 g)njyd7kh4
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 r1w+ hqp lw:.0zbx j4tis connected to four resistors to form a simple circuit as shown to the rightjt4q h+xz0wrwpl:.1 b.
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,pl )p+i ct rcej0,j-6 ,jaa,to a switch and three resistors are connected as shown. With ccr a ajt-oi)e,p+ t,,6jl p0jthe 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 batteoel8t6 dl osw.qc3k0a /) u9dtry, an ideal ammeter, a switch and three resistors are connected qed0l wt.u) /ot a6ols c8kd39as shown. 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 idealg7nn6v: jpr.a 8m3 isb ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperen bm.i ng8:s j7vp6a3rs.
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 sho x70 tyqlpn0v3wn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisx0 y v7ntlq0p3tors 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 resistance of the circuit shown to th,f -fufo-k b7 tegwiv9b-/)gdm33mt te right with resist)mef3 d3tu-km9 w vo/g,b t-btif-g 7fances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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(xr8)j/73s u8telm4un s;gmce/z si y combination series and param/mljx8 3(t zyc)n4 esu87erug;/ssillel 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 fi ie mc 42-qg mpngp3nvr1m3-o+ve identical resistors connected in a combination series a3n 1qrec4g imgp-3+ o2np- mmvnd 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, all of the bulbs are identical. Which bdjk ; d8usf g5s+/2o7nl xwgj8ulb will be the brightest?n d ko5 8wg7s8xlsd +j/guj;2f


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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 resistors are chnb5xh )i5x fuf(pg(6/l/f oponnected as shown. With the switch open as shown in the diagram the ammeter rfh)b( 5fh/pixx o f(n /gul65peads 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 rhsp4g4 p0n g3vj-1egoesistors are connected as shown. With the switch open as shown in the di3s 4jphgg4-n0 ovg1epagram 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 sw0 s+zw ,9f2px 8ntgtzypsr9w 8itch and three resistors are connected as shown. With the switch open as8f+9z 9p0 sngw2s, xttp rw8zy 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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    总分:50分 及格:30分 时间:不限时
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