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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, aq.6pmz cs-qu+:6j9x ncz:tiunt-.z wn 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 through6z 6u:tu.sn q pnctz9 :+jx.-m -wcqzi 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 resu cfh p74qm4ia,q g80l qa0l +m7ga(uhistors are connected in parallel, the_________each resistol4qlh7 up gqh7m i+c0gam4( a au,qf80r is 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 wire of a lightbulb causes the fint7xv trli ho2412w(xzd+8t x lament to become white hot, while the larger wires connected to the lightbulb rema2x d(8tlix2+z7vr 41 tt wxohnin 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.+lvg dc 7;lcr LEDs. LED is the acronym for which one of the following choice v;.clrdl7c+ gs?

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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-sectional a:iqyrgu zs9jpq w1 2.5rea 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 resistivity of the cylindrical resistor2s p.wi5rqj9u1g :qzy?

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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 mafxh 4)n z a36vstjx*- j)fpr6eterial. Wire II has twice the diameter and twice the length of I. s*n- )6 j pxr fhe6xz)43jtfva 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 the1.b dfldvt5o) (spi: b same material but has twice the diameter and half the length of wire X. If wire X has a )s d5(l1idpt.f:b o vbresistance 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 resist0dn,ha(rzt37lje - m wor 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, trwn0hj 7 d(mal3ez- 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 l8a2b-cbuo3u0 mx49t )q pbzclight bulb. He decides to modify the filament. How should th zu 34cqoxb9)2clau8b-p m0bte filament 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 are made of the same material. Th q9) l:z5 vp1+zds0* wicaahtoe length and radius of each resistor is: 1p)+h0* a95iwvztlszq:daco
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 resistanfblu txdvc y; .g:l7n0lf 3w70ce 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 i7xgylut3cw 0 vfn 70l;bd.:fl s 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 circuit diagram has inter 9zrnf ,jh4- r9uz o)dla,io3lnal 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,-z,94 3 idaoflnhlj zour r)9ly:


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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 shmnr u8b, :iu mb3*k3jwown to the right. The three bulbs 1, 2, and 3 - represented au*,bumi wmrb kj n383:s 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 the4m 3 yc6oz txozqnx4(6 right. If the current in all three resistors is equal, which of tqczt 46xo zonx3 4my(6he 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 a8-es /j0jbadg simple electric circuit composed of 5 identical light bulbs/ads0-8 jgjeb and 2 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 following statements is NOT true concerning mxl/7ib-rrdl *6a) d xthe simple circuit shown where resistors *dxlr)6l7 bim -dra/xR1, 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. Bulx ga, t2*va.5ft5uieqb X is brighter than bulb Y. Assume all circuit elemi5gttu ax, qe5.*a2f vents 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 ic9klwu*mo6nmn8qb + -h 7wo* identified resistor in 5 secon-+7*mlwuhc mbq i nn*w k6o98ods once 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 u2 lcdsk /915is7e) qccbhz35 o4xrdo following simple circuit have the same resistancei5clr9ks /s7boo)d cu5e 2qzx4c d1h3, 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 circugypjc+m 8 gfpdg*28u5it diagram, the current through the 6.0 Ω resistor is 1.0 A. What m pdjy+upc 5gf* 28g8gis 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 connectedw g e2j9rivaq8y4tchxc 2..e1 in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3ij2c 2q89 x.evht a1wey4r g.c.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 parallel to a cw*b 3 .n(gxhg3;3s bjszg (idbattery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates.d;zxhgg*gsbc 3(3 3 b(ijswn 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 (emto-fbjr727ff5mu-7p i s ois the maximum valjf -b7uip57f(7emfmrs t o2 o-ue of the 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 ofb9 6 ilmux 41tggz/gs: a 60 watt lightbulb designed to operate at 120 voltst1zmu6ggl/ib9 g:s x4 ?

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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 ohvinq4u*3vg o b7e934sk2 shdq m resistor that is dissipating 36 watts of i3h7b 4 gv42qd*9eun svk3 soqpower?

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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 a1dgysza/3 -gwatt.” In normal us13 a-dggs/z aye, 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 cir,gw bmr541bbr cuit containibw1 ,bmr grb54ng 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. o igh ;a7m8*1wgc o5vgWhich of the following equivalent resistances CANNOT be p;vgh o5*w cai7ggm1o8 roduced 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 resistorswkm ;oi1qq5 kg ;a5z5d of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values oqz1k5aw ;mq;di5ok5 gf 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 singleb(e -v76msp/c;b; alfwpsftwtp;d2p t.e -h* resistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if ndfe- b6; b.w/h(-wfttvst7 *c; p2 lappp;sme 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 resistancenglb w tx( rkv0q1. 08l6s5rwm R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of thevr5 (m8 1.lq6slkt0wr gx0nbw 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*.82rkz/ib:ok/ppr4tz sb xt it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount ofsbkt/br2t.pri zx:p* 4k8 oz / 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 throsrj * 28w uxe:yrmk t (dp)ll)+ckbg-(ugh a 4 ohm resistor that is dissipating 36 wattslkl)bw*+2 p rdj u)me:-(8gxstc yr k( 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 to 120 d/9ojq(f bgttd96fe9q3 z wd4volts. If (teg o 9zbdd996wdt3f/j4 qfqthe 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 100W lightbulb lit continui ojrvvvnk+i3:(:y )p ua 9i2yously for 1 j9vi: a2v yori +vuk:p nyi3()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 a power ofz8ujo2k g8pz 6v z3v1x 24.0 W associated with the bulb. Which one of the following choices best represexz81 8k 3z6jpvu zgvo2nts 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 a o5j;bq +i:fizlpqz6 2t 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 nu+; qj6ifozip: q bz25lmber 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 a3 d wagg/s;(dl simple circuit as shown to dl3s;d(g/gaw 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 9:njv)x (xp.3guodd85zg de5bx0 im presistors to form a simple circuit as shown to xd zb5jxdpu9.(8p53mondg eg0i:x) vthe 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 am4w p2l, b14)az4ya:bjdrq0pbyr fx e *1u 7ltlmeter, a switch and three resistors are connected as shown. With the switchj 0pluwrytbyaxbe* 4 b :,a1flz1p7 4d4)lqr2 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 awmp. ts8 hlxvat8 e:(*mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 t8( xhva.m wt:*s8lepamperes.
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, )h.p/c; , nxtzkq2 vhzb qc p8/*uckv hk,:ap9a switch and three resistors are connected as shown. With the switch open as shown in the dbv9vquhp c8 zx,),ch /2*pkp:qna/kzh;.ktc iagram 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 resistance? w,upa1ba.rx+ m:6x wr Assume that all wires are ideal, the battery has no internal reswxp+ rrx1u 6bw. a,am:istance, 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 resistance of the circuit shown to the right with 6t- ugumx 1gz9resugx1- z9tg6muistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i l- o)*,vf,iug,b n6dqnru08ib kii3 ndentical resistors connected in a combination series din i,-6,*) n 8gbnrob,kq ufvu 0i3liand 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 resistorsgtrwju)24 ju / connected in a combinatio 2uwj)/utjgr 4n series and 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 pugn d4; o4hgdgoy b,;c/ex;/ identical. Which bulb/eb; dpooc;/4y;gdh 4 xgun ,g will be 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 batterfoaa3go30ek 0y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open af 3k0e 0aoago3s 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 idealfak--q ml(.wi ammeter, a switch and three resistors are connected as shown. With the s.l( ak miw-qf-witch 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 s41 dw2geif eiy5 7 dts4i0ril-pf *y9ammeter, a switch and three resistors are connected as shown. -9i2ir7pgs fd4st1e4f 05ilei*y d wyWith 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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