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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 p 24qdaqhe(*v3qqe)eshown, 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 interiqeqe4(hd*qqp)2a e3vor 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, cbxq xzr )ys*+8tp,s0))t ecxthe_________each resistor is the)eqc8s x b,) tzy)0xxt+pr c*s 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 lightbux l8y8lr cj4;j* fe- h o4/o8z1scmxpklb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becas/ m krl y- 4zfojle xh1;c8j*pc4xo88use

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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 replaced with LEDs. Ltia8ra8 ,ck e0ED is the acronym for which one,rte80 kca i8a 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-sectioiq4siwipdmlo:6, c 0, nal area A. It :m ,l,co6di iwpsq4i0is 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 II are made of the same material. Wire II has twic2ff g0ezg-wkurrwux f )2pcf* . r4)g0e the diameter and twice the length of I. If I has resista)eur0 f*fgww 0r)kg -f 2cfpxur4.g2znce 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 t1*rbde 4wj,(rmqtu d- he same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would ha4bjdmer 1w*- u(qr,d tve 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 pieceuj r9e + uraumqb93*0f of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material 930jbem*u+ur9r fq uabecause 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 m euwrytj j-l;:6f*z+ decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lighe6 ;:-jl+zrf j*ymtwutbulb 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 are made of therc 0 d;43ad020)umqzoaasek(aabvm 3 same material. The length andmb)aou(4 3kre cza0d d2aq0mva;a03 s radius of 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 resistorkjqozqvo:g7l( f592f/u4p lzs, 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 resistor.” What is the equivalent re:2k/(l5vuj7fgz l9o zpq4 o fqsistance 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 int4/-fkfun+dj od 0w9 yrernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is kj 4fd0runw+d /f9-o ymost 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 thrzhygb a7oo9l .wa3-7runv 8 .ue q15edee bulbs 1, 2, and 3 - represe zr.3ol ab7.95 dn 81gveu7-ehuyqw oanted 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 rirbfga)k l (l,uwhg* 9:.y4ax dght. If the current in all three resistors is equal, which of the fgbukglr . h*ywx)f(dla49 a:, ollowing 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 composedc-zp(dll; d0zen+ s, m of 5 identical light bulbs and 2 flashlight cells. Which bulb (or d; m, sz+ lc(nelzpd-0bulbs)
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 tru 0dcf l1xb3b.ep9hmgr+ mk*;ve concerning the simple circuit shown whd19+bfpme b kxg;.cvh rl03*mere 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 con: c 4qffir 8a.3j1jii dy.dn;7ixp2zrnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, whichd8 njd i z4f.. a:1xq3r7jipyirfi2; c 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 j.t,l+qij .rw7mc*vs tz++m:-mmxam through the identified resistor in 5 seconds once the m.rm-.+ jx7qijz mm l+t +avt,cwm:*s 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 simple circab kt.e4t74u-:0idh ei )uqvkuit have the same r d.ek:ievq4-k4 b7au0h )tiutesistance, 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 c*e ips.p.gu*cakr21x ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supc.ig ksu.px1* p e*2arply 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 colyb jplvo43o0t6 (k (owgl2 ag;5 4zannnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipate v nol4b t;l0jo( la(y25o g3pzwa4g6ks 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 resipca72x hxz7o.mmq8c9 stors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2Vmh78qop 7 z.cxam2 9xc 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. What is the maxw 6yy*4;lhvl himum value of the current under these lhwh;l* 6yv 4yconditions?

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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 lightb(u2ug m7ypy3pbl puc0d(9 a+wulb designed to operate at 120 vo(yyp3a9c(d 7bmu + 0 uwpp2luglts?

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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 is2lbs v,hv5p tb i+,oi* dissipating 36 watts 5ov *i2 ,splhvib+,btof 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,ug2fu1;)j zpo m(ul3w 600 watt.” In normal use, the current in it 3ujfuw1o)g ;2(mzlp u 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 pr /dyfi9q7i o lpub/m:8oduced by a circuit containing only three ipmbi i 9: qu8dyl7/o/fdentical 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 sobr i/d1,ezk)6;pn cΩ resistors. Which of the following equivalent resistancezrbs; nc)e6/ pi ko1d,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 values can basqy )ejq*+,jj m7 ms4 bh 74lwu(qrr0e connected together in different configurations. If all three resistors are used in a circuit, hows),jq(e+m u j47yl*wq r0m asb7qr4jh 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 ispq(wi1u3i qzm .*eru,e o84ps dissipated in the circuit. How much total*m,e(.i1usepqpzo4 q38 uwri 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 resistanceq(p ksxlm3k1 1bx y*8v R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corq( x3yspkv*1x m1bk 8lrect?

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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 re3 xe/e u7*xa iomv+r6esistance of 12Ω when operating at 12eaoxi * 3ruee m7x6v/+0 volts. 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 flows through a 4 ohm resistor that n8j pv,j eepo1.p.-s5c5x*3 bvuc plfis dissipating 36 wattsep. fe58j5p c sv.3ncx 1*lbpuov pj,- 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 z*/;xgcu d.qn- xed.n 9t3mxvzr/bl8 to 120 volts. If thn;zx e*dt8/bgqdcv9z-xum 3. l nx /r.e 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 aal-zwmbs5.)f 2x(p2zkwbh4 r l j8a+y 100W lightbulb lit continuouslb)(lhl 22 bwjp-4s z rkw afy5az.x+8my 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 lightbulb results in+x04 y 6zkym d)qnpy,j a power of 24.0 W associated with the bulb. Which one of the following choy+ yy64kq)zn ,jmxd0pices 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 ownswg7njf161qd mlff aq9cc 9u4. 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 thej ag4 .9c7f1mlcq61nfqw9u df 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 c bv(m 8e0hae 3de-8f51hvqp fsircuit as shown tps38hv5em da(e b1hevqf8-f0o 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 connected to fouruwd40n 7q85/y shkz zi resistors to form a simple circuit as shown to the riykz u05 s /n8whi74qdzght.
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 ammnv 4hwk5ps42yeter, a switch and three resistors are connected as shown. Wik24wvns hp 4y5th 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 swxez m6dyg)y x1)1 puy6itch and three resistors are connected as shown. With1 zeyxgy1y dmup))66x 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 idealfiv 12l nhn2147ibdo n ammeter, a switch and three resistors are connect4n nh1bio2vf l2d n17ied as shown. 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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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 isqny0,kpymnuc 2q9* acvy3 pz 4; d,elh2b. ud6 the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance upz94p.u2; q0n,2 nqcvhay* my3ylc,d 6kdb eR.


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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 the right with r()nt4o cyhg2s esist go4hc(yn 2)tsances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecteuj7u sf6m32fkfk; oq8 d in a combination series andk 7oum3s682jkffu;f q parallel 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 sw+pb 7*btpmt 32 ct5vresistors connected in a combination series and parallel circuit to a voltage sctmt *73p+bs2 5bwpvtource.
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 bwkjmxon i.-azk* pyd:a 4:c12ulbs are identical. Which bulb will be the brightwo2 x zd.:ym1-: *cjikakpa n4est?


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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 rr x0q dt*ch-f1esistors are connected as showxd0h1r-qct * fn. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ve1t6f ;bnaihlwk;) 8g 34z huideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads3n; t4h hawki ugvl 6;1fbze)8 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


参考答案:    
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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 batteryl eto;1ob0iko 5-tvy/, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter0obl k -t/eoiy15tov ; reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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