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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 shq.*e(z lj oi-eown, 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 fizo i. l*ejeq(-eld 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_________eachmj:rt *p y4wp0 resistor ipt *m wp:y04rjs 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 thrnucd 5ksehwy( . ed87/ough the thin filament wire of a lightbulb causes the filament to become white hot n(u5w8ek 7.sdchdey/, while 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 lights are being replaced with LEDs. LED igip m/ b9lg;0; r3efyds the acronym for which one of t/ymrl;39ief g p;gd0bhe 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 ha,zapb/ flrgu 3+rxv +)s length L and cross-sectional area A. It is to be placed into a circuit, but ixzlfpvbua3+g , /+)rrt 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 oi7m,tu l/.dp xf the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, ml,.ud7tpi / xII 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 hq zpl r3u/(i0but has twice the diameter and half the length of wire X. If wire X has a resistance rh0 lq/p3uzi( 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 r. T: 2:tx+x qoxqa)b3g(lopz 5ehhis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus:x5(xbgh):ltqo3o x p + e2zqae 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 Edison1/gbt jx,i( ( eptev djmc+843 weq9yj wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givet4cydjew/g t1j3(xjv9e,be p( qm+i 8n 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 madr ;rv+9* /h.lin7ltkjb;p qtw84 ndlc e of the same material. The length and rad4 rlnc8khnb;+.q9rl l d p/t;tw*vj i7ius 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 resistors, each of resm3rlf p d- .4.w-5vc5rmoy pppistance R, are connected to a battery in the following way: “Two pw5rlp-dr 3co5y- p. mpvm.4f 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 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 ac/sq4ygyr jb9cz;nqj vcdn +33:0ffb 4companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.nc/34 s0 r z93ygjcfqvn:y4q;b+jfbd0 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, 9ev;bge-p-f)sn hcl3c kw3j+2, anecf k+)p9 ;vglh3es-3nwb- jcd 3 - 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 electrical circuit at the rif yk tq 0pa*s(s8zw2z.ght. If the current in all three resistors is equal, which of the following statements mt *pak8.q0 sz y2fw(zsust 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 ys3bull 09zw6 electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which blw9yzb3 6us0 lulb (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 concdineqq+3a).h erning the simple circuit shown where resistors R1, R dea.q) qihn3+2 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 Xprls5cn4w4i8m 2- jlb 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 4wc 8ibsj42-r pllm5nbest 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 cou:m 9pbac9j:3x-yvjvk- vep+ p1u ( ooylombs will pass through the identified resistor in 5 seconds once the circuit vpexyj 9 -ukp -(o 3 oyjma+vb9c:1:vpwas 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 sifv x6e-j./);kz nlwakmple circuit have the same resistance, which would dissipate the greatest power? l6nax/k- . kv;zfjwe)


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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 lp -q+s u q)8.ywhjjh;diagram, the current through the 6.0 Ω resistor is 1.0 A. What isljp 8yu-+h;. j)qwq hs 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 cgee.h3 k,fv0u ckhw 3z7k,p9R3 are 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 is the voltavp9 c,.7k3h0 k3ze, kweufhgcge 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 atrn+;; p 7to4m 6elmqhre connected in parallel to a battery. Suppose R1 has 2V across it, Ro;lt6e;pmr4q+ mtn h7 2 = 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 h-+wtx/k1mub1+gars is the maximum value of the current under these cons1/ bhaw++rg-1kum tx ditions?

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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 l4kl2fhaw*h -6junj gbd1. k122kdfdr ightbulb designed to operate at 120 volt12-dd*k d 2hu4w1kna6l r hf 2jbfgjk.s?

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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 co /0+bxl7za m6)z vqzxf7h1kflows through a 4 ohm resistor that is dissipating 36 watts of pohk0z1mbx7)6l7 / cvafz+ xzqo wer?

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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 .3n b17pvixyvis marked "120 volt, 600 watt.” In normal use, thep1.nb vy7x3iv 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 resistanbsgy ul.g1j,j/04w o7+ yqmnices could NOT be produced by a circuit containing onlyygwgs jl+4o, nq yji.m10bu7 / 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. Which of the followingi(g 7d fmj*w3c equivalent re7d3cgi(m*fjw sistances 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 dif0v ,2zu7zk-rnsj x5n cferent values can be connected together in different configurations. If all three0 xkzr szcv-ujn,572n 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 connr. lo6ip6m1r /ul(7iawfgna 1ected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the s1 6gor lw1a(.fi m/ r7n6auiplame 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 resis1kw5 pn407.b z ej6 dgmn.pzdotors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances i5 z.nbw g.z0opmjdd41npk7 e6s 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 ayl1cc.+5 zwxowm/ ,, 1(ydc r*tlggu such that it has a resistance of 12Ω when operating at 120 volts. What i/1lw c1u,w ,+dx.tcm5yzgcy alr(g *o s 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 is dissipating 36 w1x 5ro*r qb)f s-lcba6atts- aocq 6rb15x*f r)bls 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 currentzvm2 h7/(y hglop 5*j z ygo/.bc1oo6t when connected to 120 volts. If the price of elej(.v ycozlo7//bhgpzmh6g*y o t21o5ctricity 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 contind9 a1f4 yvw;dauously for 1 year at a rate;1vfdya9w a 4d 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 lighd(;1r mfmjibfyil1j(nn + 6s+tbulb results in a power of 24.0 W associated with the bulb. Which one of the followinsmnd;r n6yl1 +ib(+(j i1fj fmg 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 compulhz 9s ws+xmsq+6a7n :ter 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 the maximum number of the cms wlx+a9:nq zs7hs6+omputers 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 connecteduz1jxg+6mf:9 hoxd5 q to four resistors to form a simple circuit as shown to the righ5hjz16xo mg x f+:d9uqt.
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 batter5sgu :5ckyl( vy is connected to four resistors to form a simple circuit as shown tyu s5c:k5(gvlo 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, a s+j 35p2z: ykvz d)cqrowitch and three resistors are connected as shown. With thk+5dqjp v:) ozy3z2cre 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 switch and thlj9 0apyv5) 4 xzfi8. v3bfmvoree resistors are connected as shown. With the switch open as shown in the diagj vfp 05v8z.fbxal3m) vyo94iram 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 ideal ammeter, a switch a/use1 * rs-bmhnd three resistors are connected as shown. With the switch open as shown in the diagram thrh /*s-m s1ebue 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 .c si)*5;9m3e/vfxlx k wm ldxow-ne9? Assume that all wires aremwnfx9w/ d59 x3slkv-;). oee cl*mxi ideal, the battery has no 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 resistance of the circuit shown to j5 pzw2 t+im0nn+tne)the right with resista 5+np )titmj2 e0n+nzwnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho xha.5 bp4be,qhut303nys1 cuws five identical resistors connected in a combination series and parallel circuit to a voltage beu,a4cxy1 ht0qb.53u p 3shnsource.
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 connected in g)/ ;oqcehsc-6dyh4z h m(w n,a combination series and parallel dh,6 hwqn/gh ;-s4czmecy o()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 diabo6ow0,s2ducw*f-s l-ob 71 hf)wi c vgram, all of the bulbs are identical. Which bulb w7)0o-w1-scbs , w df*c2l ow6 ihvoufbill 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 battery, an ideal amme o8;ta qf+xzpu xu256rter, a switch and three resistors are connected as shown. With the switch open asxp;5xt28+u6 uz ar foq 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 ideal ammeter, a switch and three resisto3jol /ezdo0;/od ,dc fzblo (9rs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 azje9cdl0 (z,f;do3 b/o dolo/ mperes.
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 battefcqa9fnt3-mw:yz xl on)):z/ ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagray )9)nzx/fa fwnzmt:o: -cq3lm the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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