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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 ssvgl b:/7 rpkwfin80 nd)r) 3aph6v2chown, an electric current exists in the metal resistor connected to the battery. Which one of :ir3 vk7n)) v86 dhg nw2p/fpasb rlc0the 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 are connected in parallel, the_________each fgo-qutni 5g)2itw/j hzy4( 4resistor is4t)zou/i q (nggfiw5-4 h2tyj 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 fil gr cuv59(xz0k puluym;,j )q3ament wire of a lightbulb causes the filament to become white hot, while the larger wires connected k59 03ycvmul)jrpg (;, uqzuxto 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 replacedk cgt f68k8ie6w 7*6:ev xtzhtg,,uoq with LEDs. LED is the acronym for whichuxe cteghk6,,ft6t7w6 oi8k 8v* qz:g 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-sectij/n,- nt0y jyconal 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 is the ra /yncjjnty,-0 tio 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 :3vzoozt 6;5dfcv 1npII has twice the diameter and twice the length of I. If I has resistance R, II hasod5n6c z;f:ov1tz pv 3 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 ma)vm4*op 4ua72 wthm (5efllprterial but has twice the diameter and half the length of wire X. If wire X hau)hwt*v ro f plm4lpme45 7(2as 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 halt)nx-rldm iw k+l.v9n0(0 z4y beqv/ s length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hap9b i(xm 0lwl q)y .n0zdvtlrv+ -ken/4pens 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 Ecm4 nj(-mpog/zt zm;, dison wants to make a brighter light bulb. He decides to modify the filament. How shoulcz4( n tm ;jg-/oz,mpmd the 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 mw7fc ,riq5/jj hz -vs4ade of the same material. The length and radius of e cj,fiv/4qjh-rw7 5zs ach 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 resistors, each of resistance R, are connected to a.cq dlh3em -w/43ti xp 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 resistance of this arrangement of four resistorst-edm.4 xl3h/ piqc3w ?

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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 diagr.+d5k)f4qi cgi+w lvxam has internal resistance 10.0 kW and the ammeter has internal resistancev5k . l)cq +gi+iwdx4f 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 tg7sp7.c grun5lp 7b rhey8 0.ohe right. The three bulbs 1, 2, and 38e g7sh7 g.p ucron5rlb p7y.0 - represented 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 elhkx ,cmo5z6 0zectrical circuit at the right. If the current in all three resistors is equal, which of zh, cmx5kz0o 6the 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 circuyw. qsn;9 (rcybm81kkit composed of 5 iden9mk. sn bywq;k18r yc(tical light bulbs 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 followir57.s c kue(xc:o ,bodng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3e cs(7b5rco,kd.x :o u 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 ae utp*gk um;9; 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, whmkt;*pe u;g9uich 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 w 7)rgyxsmf-,louo- q 2ill pass through the identified resistor in 5 seconds oncuq)mx,-o-ys l7ogrf 2e 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 kbjc0*:p7s sx the following simple circuit have the sas0cxk sj7 :*bpme 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 through the 6.0 Ω rej6a h/sy.j*t uww o,1esistor is 1.0 A. What is the power aweuj , wjo 1*t6/sh.ysupply 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, an*)bz 7t2da9yiu3ftwlfxs ;l *d R3 are connected in series to a battery. Suppose R1 f9t sll)bw7*ta;yzui 3 * d2fxcarries 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 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 ba zi5r(a7e.twa ttery. Suppose R1 has 2V across it, R2 = 4Ω, and i(arz ta. 75weR3 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;2xctl.fgv rxb03n)b9 km(ut m k9vn 0 1200 watts and 120 volts. What is the maximum value of the current u u ).n2kfvn0 mgt9cvlkr9bx3bm0;tx( nder 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 of a 60 watt lilpe3z2v d*ve)ghtbulb designed to operate at 120 voltl *e 3zdvp)2evs?

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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 g5 t0wk:ezizyi0;t6b36 wakz0 tbw0 5zi;it 6yge:tts 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 clothes is ma2hq 1ewns 0vz)mk- cnoskd,m*g, y8g0 rked "120 volt, 600 watt.” In normal use, the current 0),, -* mnwgz8mgd vy0hq1kenkco2 ssin 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 fo85p-+ ixh sh9uu *jaacllowing resistances could NOT be produced by a circuit contain-*uhx u85aj9sch aip +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 resistorsvg1i5 l. fj6 o7 vq0fd,mx8ma. 7u.*unyigtry . Which of the following equivalent resistances CANNOT be produced,0 8vm qgfo v. rl7x .6uf1agm*5y7 yu.ijtndi 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 be connected t v:6cxj395u (bwaxds gogether in different configurations. If all three resistors are used in a circuit, how many different values ofxdg5:c 3 s6va wxbj9(u 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,r2gvc097fb en /zpq7z* aed3f a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected q/2dnz73 0efg v fbarcp*z9e7in 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 resist 5x(.:/qce.anmz dulgance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resi(ec 5axml.q.uzg dn/: stances 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 sucv)ljkz, fq3br vdw*ug exuas4:-1 -;nh that it has a resistance of 12Ω when operating at 120 volts. What is the minimum am *4evrgxaunk1 -dl, vs-uqj:)f 3;zwbount 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 resqj y(uvya;/7uistor that is dissipating 36 watts ov y;qj(uua/7y 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 when *bz vhp/90k1gp8z nm xconnected to 120 volts. If the price of electrixnh pp9z*gb/0 vzm1 k8city 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 dm)7 p/lj-r agkeep a 100W lightbulb lit continuously for 1 year at - pmal)7r/gd ja 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 lightb w4k8vj o22v p0ksaa(1l;dhx hulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lighv8h j;kl wv axo(42dp1s 2a0khtbulb?

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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 .vbq17ag nps3m u0n2p six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuig1. 3bpn 0qp mavnu27st 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 battery is connected to four resistors to form a sim.mjmezv/v q(f 72ti(t ple circuit as shown to the righi/( vq m m.z7ejft(v2tt.
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 resistors5s:3l7kq h zn6njxr9 i to form a simple circuit as sho 563krh7 ni qj:9xszlnwn 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, 0kma1y b )hrd*6;hgela switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a 1eamyh)hrd gl6;b k*0mperes.
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 and three resistors are 2 kflzdw:/dju0keyev+q810l connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.0e2+ u/ke:d vqf8ldzlwyk1j 0
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, a switcn n 9c(zdom j+w ;7x0h68hmylnh and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads mcxhyz98jn (m dwh0+n;nl6o 72.0 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 t6bmp -,v4pfp vhe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistancvmp,-bpv64p fe, 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 tdn7h06 8b3t vaqiczc (he right with resistancq7tic ( a30hvcznb8d6 es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con)hkltf (l7cavu; s24qv dv/a f0)/ifj nected in a combination serie t4ij//)l;s u2adk (chvlv)f0qf fa7vs 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 c sb9-p-e9t apqeu1z0 identical resistors connected in a combination series asctpzqbea1 e9 0u--9pnd 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, allgbtlw(,k z30 :oluja+ of the bulbs are identical. Which bulb will be the brightb,l+w lkagj:(u 03 zotest?


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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 battes.aredn w0 t(d:)o*svry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram v(te:w )aosn rdsd. 0*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,0s*5 ybhn*wt*r2juu h jfmz,.) u9qlb a switch and three resistors are connected as shown. With the switch open as shown in the diagram th mty 0uszwul )rbhb*.j fq*9hn2u *j5,e 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 idfuv yy+.6)zj.qz. r(/xa praoeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a(jrzy ..zq.aa6o/u +)xpvr fy mperes.
When the switch is closed, what would be the current in the circuit?


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