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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 in the megi 4 st9zx+*vdtal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow th*s+t9vz 4 digxrough 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 resis2wrp bllfcl +grh9(4)o8p6ok tors are connected in parallel, the_________each resistor is thb6flpk 9(l2h) ro4 rc+ wglo8pe 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 w .zs4x8t, hcolightbulb causes the filament to become white hot, ,4o chxw8s tz.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 ppi6y: 3 j f5tk*goj,qis the acronym ,jqi6 5otgj :y*p pf3kfor which 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 r*2fyw3i- h.pm)wrta5j v1 s 5yhhip w4esistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first mu2w yp5 wfs1-p)mjhthiwhiary v.35 4*st 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 twi4 x:2; ss a, kmoroos4dmta)d.ce the diaoda a;o,.o44 : s)rmtksd 2mxsmeter and twice the length of I. 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 the same material but haqimzmixb:: rly 4df 0h5+h n04-ym 0rzs twice the diameter and half the length of wirr:4n -00hyz:r d05+bhq 4yi xm zmfmlie 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 cylindricala5q 8y)oa( s+av-xto j resistor 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 because of thisvjo5a8 -ax+a(s tqoy) 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. q4t*9het p6k ;vwo*e qHe decides to modify the filament. How should the filament of a lightbulb be modified in order to make9qoe he6; tk v4t*wqp* 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. The lel 2dz (zfk)gh/c+rbaf u9ct3) ngth and raazc+zdtug f2l/93 f(bh )kr)cdius 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 resistance R, are connectrpe(qqerh4 )2 rf7 )yi )yz:shed 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 thr7)rrps(rey:i e)hz)hy 2 4qqfee 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 accompanying circuit diagram has internal resisw 76 c:drozt0gtance 10.0 kW and the ammt06 zgwcro7:d eter has internal resistance 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 the ui)yow v/d zhu. i58pc4lh z3*-sak3yright. The three bulbs 1, 2, and 3 - represented as resistors in the diag s ckz-yilu8z)p* 4/w.hu5y3oav3 idh ram
- 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 electril t9e3b)ns8 s.er .ppml3e f6kcal circuit at the right. If the current in all three resistors is equal, which of m f 8e3plrn9.3tspe bs e.k6l)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 repwpnz// fghl0w,9atz csd 2 2jsym sdhg6.1(+iresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) ,1 ws( t+gi0hz2nl.yad2sc/zfdj 9g /h wsm6p
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 uzjx f2: mr7 :+p3*zih csz)yithe simple circuit shown where resistors R1, R2 and R3 are have equal resistanc 2z *7xz hiy:ipm:j)3r+zf usces?


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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. Bul78 dhaz hz(,35nv1fz*c iuonsb X is brighter than bulb s, 1*ozzh nn53fdai8u7 (cvhzY. 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 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 identified r gty.5+g2unpe5 msp*;qmzow8 esistor in 5 seconds once the circui nsmue2py+ 5t; zoqg 8m.*g5wpt 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 circuaa1o. wdhxypdec1f -h (1v3j7it have the same resistance, which would dv(- 1hx.cj ohd1f17aaye3dwp issipate 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 pf)wh.x4 8zhtthe 6.0 Ω resistor is 1.0 A. What is the power w)hh z8p. 4xtfsupply 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 in series to a battery. Sup+aeqh3umg6 p+)e d3x epose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipate hga)empu6e3xe+3d+ qs 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 p* 8ndh(cv(l.e /po.t8rjrtl e arallel to a batt/vrrdec88..ej o ll thp (nt(*ery. 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 voltse6sg th1mnw9(. What is the maximum value of the current uhgn1e (s9m6wt 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 resistaf 4 kzr4wp day2lplm(ccll:. k1c1.4gnce of a 60 watt lightbulb designed to operate at 120 volt.alg lfykc zd( lrl4:cp21.4c4wp1kms?

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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 zeso s no-j120that is dissipating 36 wat-o0sn2os e jz1ts 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 marki,0fvjb : bgpfqw(5t .ed "120 volt, 600 watt.” In normal use, the current in b0:tpvif. wb g 5,jq(fit 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 fb30u/:dn m*op5dxplr k f993 ekv j(lzollowing resistances could NOT be produced by a circuit containing only three identical 6Ω resistf j309dz*9rm x5vepbd:/l3p (lknuk oors?

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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. Whichaok1j yc9k k(0o t8yv0 of the following equivalent resistances CANNOT be produced usingtckk91a(8 0y0jyk ovo 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 b1m,*nh kodsfdj7:sg 9 e connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be p:jhdfm1 ss,* go7n 9dkroduced?

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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 batter *yt spv6nc9(xy, 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 same battery? Assume the internal resistance of the batteryps *y69 nxcv(t 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 re+z oj0cf x7k iatr68(r:.lpsf t.ej c5sistance R1 and R2, are connected in parallel, the equivalent resistance of the combinati. (xpf7ce f.rzji 85otj:6a0 +kltscron is 5Ω . Which of the 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 it has a r2+gkujx d8inc1 g0jd ;esistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would t8jgcx+dn0;2gi1 u j dkake 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 wc2zr ak d9f.:0 :-+sjjtgtw rphucm4.atts of powr:ua tgrdf0jmt kc-c9w s:+ hpzj ..24er?

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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 whenu ;mwah148ls s zyy(jxg- xf1. connected to 120 volts. If the price of electric14 (sg 8m;yjy1hzsaxwx-fu.l ity 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 ho9j cnco c:le17w much would it cost to keep a 100W lightbulb lit continuously for 1 y:ncc lc7ejo 19ear 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 ligh 8g,k0htd .ragtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represe.k8 , hadr0gtgnts 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 k 3y),tx 4l ichx)n 33cyxfw9fcomputer 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 computers can benc)ly9ti,3xxck4f3 f)y3 x hw 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 rx5igs3u;+is pmj3; bzo 2g7pto four resistors to form a simple circuit as showns i;57u p g 2osr;3+bzjpmg3xi to 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 i*b)ejb mocnw2j q4k6j3zl,r( s connected to four resistors to form a simple circuit as showj 6) r(3kol*2bemjn cw,zq4bjn 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, a switch a;h p4m z; b2 y5xkkkm sp.t*2irnjrc8 :he1jg-nd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes*;4n 2 kk1g;m-tcj rxps5zek.rb8y:h j2p m ih.
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 swi8inep.b8yhk9p n0 .dhtch and three resistors are connected as shown. With the switch open bey . di 8.nkh9p08pnhas 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 ideal ammeter, a sl sbwiu-r4gi2 c+ig2*9-ku z gwitch and three resistors are connected -ci9s2grl ib u* 2k+gi-wug4zas 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, 4of53zi i tnsul:u+91qjyn7bwhat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical res7 4uliufb1i oys3t9:nz5 n+qj istance 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 circux/7jdg9 afi:/1,pzq1 aits+va 9dd jf5 m dh,git shown to the right with resistances azit j1d+5ddq/fxgaa/,pmjf d 9sg 1 :7iv,h 9$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bwbz8b* xma 0ier 10uv4elow shows five identical resistors connected in a combination series and parallel circ0 0ie1rbm bzu8x*4wavuit 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 ip51(+l6tpv vx; g4+ggoux izresistors connected in a combination series and paralx ;5pizxg14g+iv6 uo gp+tv (llel 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 identical. Wh 7n2dc;i6 xkk2t uvz 8tc;h(5:w uxb7 wygxbj;ich bulb jnwck dtu2w7b ;5ci:76hk;8zvy2b( ux xg x;twill 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+:1)a8uebtgajkhn 2px - x rs( ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.a ptkrhu:b 8jgn )s-e1(x+ 2ax
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 resistoa.kw(* jg1pgfo( mkb1qz + a8drs are connected as shown. With the switch open as shown in the diagram the am g(*kad1ojmw qaf +g 8p1zkb.(meter 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 swit55j -ru9o9 n2bxrucvgkb23r3whnbb 4 ch and three resistors are connected as shown. With the switch open as shorx3b929 524v-brjrchg5 3knbn uwb ouwn 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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