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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 v(i38u+x g1 pn1 viw:6/(jbfgbheep tin the metal resistor connected to the b/n(8eh( 6ufpw eg xbjv3i 1ti:1g+bvpattery. 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 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*qe6yr ivio j953uk2/u 7h zwf+j.icf are connected in parallel, the_________each resistor ifu *ii2 569wvi3e z+c .qfhyk 7ju/ojrs 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 wixhz( t2 of4q9uc( 3vzmre of a lightbulb causes the filament to become white hot, while tx3f4z(hu vtm qz 29co(he 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 lights are being replaced with LEDs. LED is tld xg- 3r*dy7s/.awr yhe acronym for which one of the following choi3lsdd/xrr *a7y- gyw .ces?

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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-sectionyfpkuiug(p t72t; d--al area A. It is to be placed into a circuit, but it first must be cut in ha2u ;7ktg ut--f (dpipylf 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 wireolpwexirq/d88esin/j1 ufn9; o8; / v II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistavsx9 o; /q8leni;up r/wi fn88do1 ej/nce

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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 made2ht3gxaxhew(kmia 3 wvcu4; h: jk 5z (9j7x)g of the same material but has twice the diameter and half the lengthk7jh axiuz vtjhh gk 329m:x;)cw( axe w4g5(3 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 re uz*bvrxu a:y htuc:.xf1g59-sistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becau v9g5-yzu bx.chf1*r:uxtua : se 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 decides zx0+ghax y*3h to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more l+ 0x azhxy3g*hight 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 o ttgjsrg l 8,lz/.e+gwp0 1da2f the same material. The length and radius of each resistorl8,gg0ds tj.w2a tpz e+ /l1rg 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 to a rkix 3,pne4uz pwu l3wo2;/c1battery 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 fourt1xl3up2rzcu wkon,p;/3 w4 ie h 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 cir,r0 89v/gt bo7d+oipp t puf;-q;nz udcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most near /ndip +0f qu7 dtpp,r;obvo9gt-8zu;ly:


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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 comptp3xj v9n7- y(p0un(fcz 0v qsound circuit shown to the right. The three bulbs 1, 2, and 3 - represennvc svfqn-7u(z(p 3j0y px9 t0ted 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 cz9*. abh/eatf ircuit at the right. If the current in all thre f a.zthae/*9be resistors 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 electric circuit composed of 5oi:o9w7 7nsway ne1a2 identical light bulbs and y:9nio71o2 an7 eawsw2 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 followxpd srf/fapz4 0s.5x0ing statements is NOT true concerning the simple circuit shown where resi p.5ffx0a d/rx4ssz0 pstors 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 cl :ptk6i8 8tru/pu o9p29u lihonnected 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, which one of the following choices best represents what is pt2u o6pu9hi:8r8til9pu /kl 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 throurxc(3ru-+0jdckfph ajbtij/38z) e9 gh the identified resistor in 5 seconds once the circurtx8ihd/0+c) k j3-bjjra (u9cefp z3it 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 the tz1qgbve/:a-v aqs j*w +1hh4 same resistance, which wotv*-qsvb zh1:qwe+ja g1 /ha4uld 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 i k p4dfd3qm 83 7p- dz:uwfx8orrbx03through the 6.0 Ω resistor is 1.0 A. What is the power supmdxk3q: 48fb0zp7 -pd 83fi r3ow uxdrply 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 bq/ ctjv s*dqq b)a3 xasb:mah2)2+7 hin series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistanch) /+q3: j)b aaqdbs2m*vqab7xh c2ste 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, R2j5 :qlb0dg-*jhr,p n c+5da ml andR3 are connected in parallel to a batte- lqcpljrgn*ad+5:5jh, b 0mdry. Suppose 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. What is t0rp pu,pw9ugxr,b/,2q w0l er he maximum value of the current under thewu2,q0bprppg, rrlwuex0/ 9 ,se 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 60 watt lightbulb designed to operate at 120 mbq 4duf0 n1q)volts?nmqbf)4d 1u 0q

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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 dissipating 36 wl8bn(kl ef0b; ix5bb6atts of powebbb6 e0f5i8nl lx(; kbr?

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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 "1206 ik:4hzd orty3vb 2-ecws 5y- volt, 600 watt.” In normal use, th265hdv yw: t3co yr4zik--s ebe 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 producesir49cxavsn/ .z- a0z d by a circuit containing only three ideni/v ac 4z-.0sxzs9rantical 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 equiva4xzld)3h b x8 o8a+ycl3 tsjl0lent resist +l s8 l0l4zhoj3cx38xyd)a btances 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 caz/inf nddkwtlt8swn71rd-23qp 5s3j8sj*d 2n be connected together in different configurations. If all three resistors are used in a circuit, how d/ d1rfz3p2sdd w8 72j lnjq k*tswtns58in-3many 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, aadd)mn /;n 3gfl3nxv) total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resisd /; am) lnxvnf3dn)3gtors 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 R1nh o* y z5db5u8jp7opael)9 d2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stateme 5p9 h51 u pj*ddn8e7olozayb)nts 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 resistanceh/p1a5k-q tx h of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water 5/-q1 htx hapkfrom $15^{\circ}C$ 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 is dissipa :*+kc -+rgwmfr weob7ting 36 watts ow *fecbg +mrrwo+:-k7 f 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 westob8)g2tyb 4h -59tt4uo lphen connected to 120 volts. If the price of utybobh)2 4t8esotp5 4lt-g9 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 nu(, h*pw n/3sjaxt)vwould it cost to keep a 100W lightbulb lit continuously n *,hpt3nx wj sv)/a(ufor 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 pi os)7uqhy- )zhvngr +) u5b2through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance o p5n-biu)q2)ys+r uo) hg vz7hf 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 *(p p:v5yon;wcb 6on jrated at 500 watts in a 120 V yn ppco5w b:voj;6n*(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 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 battee/h1r.r/b2lb y xpxr0:toxe 9ry is connected to four resistors to form a simple circuit as shown t9eyor/l.2p0rx x/xb1:b rthe o 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 four resistors to form a simpq4v xmu8u/m /xle circuit as shown to the rvuqxxm/m 8u/4ight.
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 switch3f m5 a f0r6d3uyym1iq and three resistors are connected as shown. With the switch opf 3rm0mq61yyd5auf i 3en 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 switch a4 x *lb3bwtq3snd three resistors are connected as shown. With the switch open as show btx3ws*4lbq3 n 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 q9ktjiy) rtm(w(zv) 5 ir*)tuideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diag(iv9it )rm5 wttqj)r)zu(y*k ram 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 shvonxll )6c5v op,yyq(o;wl/9pty,ded -mc8 8own to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has nm/loy- , yxlvovq5;yd cp wt9no,6lc8d(p)e8 o 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 resi6 1fi;i0 qbtpszv.)ys stance of the circuit shown to the right with resista )0qii1t6.pfz;vbsy s nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rp)xjm /kchh;an/ h) -resistors connected in a combination serk)xj/-;) c/h nhrpam hies and 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 resistors coxyweel:* (6ygrve99j nnected in a combination series and parallel circui e x*eyjyev9(wg:l69rt 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, al6:zrzsm7 llt4( (s uxfl of the bulbs are identical. Which bulb will be the bmrx t(zl6:l (7s f4zusrightest?


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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 switcjvkg) :e8-qxd h and three resistors are connected as sh-x8 v q:je)dgkown. 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 idealhmq i 70.zew7 a1bw7v4p9lmif ammeter, a switch and three resistors are connected as shown. With the sww wf e m7ap7 mlz1i0h.7v4b9iqitch 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 three resistors are conn2c,vf1sxs.sz 2,3c vb)edlpj ec)fvs jc,.xd,b3 ecz2sls 1v2p ted 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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    总分:50分 及格:30分 时间:不限时
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