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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 metal resistk b,6d48cg vecr sr*2dor connected to the battery. Which one of th d2s*b v,6 rkccrgd8e4e 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 parall95-x; adlhkdv el, the_________each resist l;hkad9-5 dvxor 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,)gds : 865xzeugxozz2*e ehx wire of a lightbulb causes the filament to become white hot, while the larger wires connected to th*oz8x se g:x6)xedu2 ez ,z5ghe 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 rq2ar3rimxi6z fd8-( is the acronym for which one of the following cho2 r 6(ii3axrmqz df8-rices?

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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 resistoeilw*z* bw3:h v3p:byr has length L and cross-sectional area A. It is to be placed into a circuit, but it first myvzb: p: 3bli wh*3*ewust 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 twice theomoq/ytm0( oaa k,3c :s(dc 8b)6xidw diameter and twice thqbykima63ow80)tcd,s(/c: ( xo amod e 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 mate pqd:gvc8 (mmpjww2fp12z fyz.) j3h6rial but has twice the diameter and half the length of wire X. If wire X hasjpy :m)mc gfpv22 zwpq.jh6dwf 18(3z 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 has length L and radius r.nxdau43 *xz3s This piece of material is then drawn so that it is a cyls xn* 3adx43uzinder with new length 2L. What happens 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 Edism w3 ,z1jtf+dlon wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mod+d fmz3lt1jw ,ified 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 res+p vhj4fr l/ecw 4-jc(istors are made of the same material. The length and radius of er/l pcj+j whvc4(e4f-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, areqku3 /mhr8lteb xlzyn9 uj;st0g7 t.y771 u(y 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 is the equivalent resistance of this arrangement of four resisxt(gylymz8l3t7;9u uu.b 7jt 7sq0eh /nyr k1tors?

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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 f;yp+x*,fa/x8 rfl6v 3 g zkeqhas internal resistance 10.0 kW e8v/k ffxg;lyzq+ *xf6r ap,3 and the ammeter 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 thev7xh2y9fn ,r. ofvd,u right. The three bulbs 1, 2, and y,f2.,v 9of 7 rdnxhuv3 - 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 right. If the currenm-wf)(b paa .ut in all three resistors is equal, which of the following statements must . um)a(af-bpwbe 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 represen q/ c7o0fdtb9j)qrry9ts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bj yqc)rro7t90q b9f/ dulb (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 *znmp /yv6zlx06 4 5tkckq0 qfstatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? nqk0pmk 4xzf*/yv6t 0cq6l5z


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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 r3tt)gby;i .ted :on)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 dobiy)n.tgt):t;e3 rthe 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 throui5ajxiju 4,a7gh the identified resistor in 5 seconds once x5ajiji7 au, 4 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 thenl,- o/p q w1c4 (wla/pk4)srshulm1h following simple circuit have the same resistance,s -wah14swnlq(pk,/)pmr o4h /ulc l1 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 Ωiaajz 7,u/j 1rom 29s ed-vz-csv65op resistor is 1.0 A. What is the power supply voltage V? jzj6zum aao 7sv/ so r21 vecd5--i,p9


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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 se m*upb4 hon)q/ries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistqboum n/*)p4h ance 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 too*ia6z2xqn 6(ltya -/hwz:w1f p a(kz a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the a6 pzt(*yhl:izq1 xa (k w/z-26no wafcurrent 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 17iv56ygll3 (a-hk fv y20 volts. What is the maximum value of the current under th hk(a vfyl-7yil 6g3v5ese 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 oper)ue-ga )-g 9l/pi;k f 3uzdidoate at 120 v zf)pg/i3ddu9luo- )aie- kg; olts?

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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 resistocdt ,ar . bo6+8 c4;eunbyba:hr that is dissipating 36 watts of powereyb cb.: odt u;a+h8na ,b6rc4?

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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 6l0q nohr7 0rf*vn yx2marked "120 volt, 600 watt.” In normal use, the current in itl206 vfr0o n7x qnrh*y 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 pro; qnn4)fk yv,w owra-1duced by a circuit containing only three identical 6Ω ) qw,k-n n4wa1v; yrforesistors?

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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 tt4 tokhxj9d,/hree 1.0 Ω resistors. Which of the following equivalent resistances 9 ,khdot4/ tjxCANNOT 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 can be connected together iqprn ,mh34h9g7 ry0w83mwpf in different configurations. If all three resistors are used in a circuit, how many diff rw8yph7m3ip49h wnm03rqg ,ferent 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 con b2sf ,;bxo f;hu5ou ymq8;,:jn1pbmjnected to a battery, a total power P is dissipated in the circuit. How muc f2 js ;hyjum ;mq:8p;1ono,bbxu 5f,bh 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 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,) f 9t6bar 57z2zxwqv1 pffmh0 having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abo9f 6fv01qrhw ztz75pm)a2b xf ut 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 resistance of c,6ua,d vz/zv12Ω when operating at 120 volts. What is the minimum amount of time that it wouldd,vzcv/,a z6u 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 ohmp(kiw2ei 7ln1 ngx)r. resistor that is dissipating 36 watts of powee)inp2gkr.lx i(7 w n1r?

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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 1d )cxhj3cg4i ;3 amperes of current when connected to 120 volts. If the)4i chg;xdjc3 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 wou*e w)l , m2go0+zsj4 -k/ofw xea9zjfkld it cost to keep a 100W lightbulb lit continuously for 1 y/2z0e)j aw,-smf zk*w9ekfo+o 4jlxgear 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 throug n+ zhxg6h6fg/e5ggckrj;2b ,h a lightbulb results in a power of 24.5z6r+26n,c g;/g eb hkxgjghf 0 W associated with the bulb. Which one of the following 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 ok7be7 p8t*g qth c8g8zf six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single 7b8 cqh*8 tg7 pezg8tkcircuit 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 simple c/jqzlc:69jbwcug6 )p ircuit as shown to thcwbz/9)u :gc66lpj qje 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 simple circuitzi kd 2; uk+1tn+ t./aqpbk;cg as shown tkk;iu . +p;nkacz2b1 qg+/dtto 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 ammetxiqey2ziv4c 97 w4z/i,1yah a er, a switch and three resistors are connected as shown. With the switch open as shown in the dia vi wyzi2 /,7 aihq1c94zaexy4gram 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, mvjlo6ylj.w. 56vd tv(* 1cgo a switch and three resistors are connected as shown. With the switch open as shown in the diagd.m gcjv*(l6w5to yj.v 61o vlram 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 ideay.4lrhvo)u;t6fj4,wuulu - x8vz u7h l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereshvwu;4uuu7)8 -jrl4u f.vl6yxh ,oz t.
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 )itg(w s 82ziothe right, what is the equivalent resistance? Assume that)(zg2s wi i8ot all wires are 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 sei,y)*gd-q edw0 g 2).nm/q (bfkhxwuhown to the right with resistewe(w)yn-*0,. kxmbg fqqu/ hdd) gi2ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a)vu( 68*r01zo dgvm 0jppcut yfkj+7five identical resistors connected in a combination series and parallel cirkv p(pdo)8 rfy7mvzutg 1 *00j 6cuja+cuit 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 bejw j27/ sq48vnanhd/4 ao0foblow shows five identical resistors connected in a combinatio/j4so oqwv7/0nhfdnj aa b248 n 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 thv84 + gy-ds8x3wxsa1sl z eo9se bulbs are identical. Which bulb will ssx9lxe s +dys4ow g8v1a38-zbe 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 ammete264ya wb ugnspp)2wz:r, a switch and three resistors are connected as shown. With the switch pwb2ns 2uy w6g p):a4zopen 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,j u(g9zu:sf0ua1 jqt7 an ideal ammeter, a switch and three resistors are connected asj79qj:g 0u1st zfau(u shown. With the switch 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 batteryw f58v5qrda:e9:vbb +aa0rca, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showabca:fdr 5e +ab v wq5rav8:09n 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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