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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 extk( wb b .:t3vv2forgk8v*xa /ists 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 through the interior of the resistvfbw(xr*b t 8t2.ovk:/k gav3or?


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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 l2, bhuyxc(3 )jqfco2 resistors are connected in parallel, the_________each resistor is tjb ,qlyh(cfo2)cu 23x he 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 w*9)bin d6gh0z 3d nrofilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lig9 z*603gihodd nnw)rb htbulb 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 i(dn y 9,4x sc+kjnlne)s the acronym for which one sykx nl 9en)nc(4,d+j 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-section,1 0ybqa(gy vtal 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 ratio of the new resistivity to tv,t qygy10(ba he 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 ()jri sahw3r f;,nd)n the same material. Wire II has twice the diameter and twice the length of I. hj n,a3s (;w) rrnfd)iIf 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 jyv:nbi 6:b5 tof the same material but has twice the diameter and half the i bt6v:nyj:b5length of wire 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 cylindrical resistor hq uynaf ,v3joxd-7(rn ;1 u0zbas length L and radius r. This piece of material is then drawn so thatrx(3q,fuz0d;nu b -oav1n7 yj it is a cylinder 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 Edison wants to make a brighter light bulb. He de bpws6*ja 52n )98cd j+h7hfgx9hjs ydcides to modify the filament. How should the filament of a lightbulb be modified gd jh+7fwcb6 ns x2sd*) h8ypa 99h5jjin 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 cylindrica;g2zdnnsdta7 zi 0u3 2l resistors are made of the same material. The length and radius of each i;s3z d2zdg27an0n t uresistor 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 battery inrsie+e63bi ,rcj-deks: c ..x the following way: “Two resistors are connected in series. This combination ok3. 6.jcebi:e d +sscerr,-xif 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 ac7r psm1yl*kcq 52,n9 2teejzd companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.t5k 2y9rpee ,*q2c1ljmz7s nd 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 rixelrq9dn+):01tek4 ym c p9 bsght. The three bulbs 1, 2, and 3 - represented as resistors in the diagrtk4b0esp 99ce nql+:y dxm1r )am
- 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 simt k/unu ex,en4kua t979f*vrp2cs0: xple electrical circuit at the right. If the current in all three re spx:tek,k4 /r*v ca7u9uuexf9tnn2 0sistors is equal, which of 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 represents a simple elecpg:ss2 sx8z2v5 t 4yoizzox00tric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bu 2 0s5tv48:ssz pxoz0oi 2gyxzlbs)
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 cj )7kpxvtbpn/1l8,ef oncerning the simple circuit sknp)f 1xl,p78j /bvtehown where resistors R1, 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 se x/cwj q. iy;j384jcrdries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallery/ .i 8jqjx cdwjc4;3l 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 resistor in 7 w1k slsjttm)iu+)5l5 seconds oncewss17kt )u ) i5jmt+ll 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.5f5s lkng jq5 ;zucq3 the following simple circuit have the same resi5ks. g5j3 unz5qlqf c;stance, 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 rest 3iz2x)xdiw 1istor is 1.0 A. What is the power sut3iz)i x2wx 1dpply 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/8+eqgwnk5zfy h9v0 x series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resih /fv 0gyqxzn8kw9e5+stance 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 paq4ahpd/5 8yf nrallel to a batterd 8pnf/a4y hq5y. 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 volts. qzpn8.olv9uf):ft 5 i What is the maximum value of the current under these condition5qon 9lui)p8tv z:. ffs?

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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 operate at 120 d uh+yi14x dw(v+d(xdw uih1y4 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 resistor that is dissipating 36l1 q+dik3 pyif35ny.gz0ve s- wattsnpvkl- ie.31f iy5z0 qg3+sd y 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 marrjdjjs00p) 2q 1xv5j)b hsz m5eo7h +vked "120 volt, 600 watt.” In normal use, the current in it pm0hojvh)5x 1 +rbqjzsj5d7sj0v2) e 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 bx l2yf;u*7e*9rdcx jxy au-e, e produced by a circuit cont7 j2u,-rx u*a9;xc dyx ely*efaining 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. Which of the following equiv,3v *l).q ilhvfiod4n alent resista) .odq4i3v*n,vllif h nces 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 divy syo8z ab5 sq2cs-14fferent values can be connected together in different configur s8ybsy4q2scz-o 51a vations. If all three 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 connected to a battery, a totalm*pxel*0m 64m fzehf1 power P is dissipated in the circuit. How much total power is dislh xee 0*mz 6*1mfm4pfsipated 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, hav*lpgx.vhwh +r 48 ,ujwing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stateme l uhrhpxwg.4v8w ,j+*nts 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 resistance of 12Ω whenss;0ko 7x*dzx operating at 120 volts. What is tko xz*s70sd; xhe 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 di.x0)r bjjrwv(sg55 xsj;1g lx ssipating 36 watts of )rs;x . j glrvwsj(5xg150xjbpower?

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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 vyx,gez1 y9qnv2 1j j5solts. If the yjzevq ygx 12 1s9,n5jprice 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 contijkoz t4 / ft9du-ztp.-nuously for 1 year at a rate of zp f-9/4tj .dttz-kou$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 lightbf ags-l/ qqz6 .uobf:,ulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best reofb /lg:, .qf-s azqu6presents 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 ratesz 1n n2 cu2 nx,zwy-4l7cst.lq3d 6jtd at 500 watts in a 120 V circuit. If all cjt2 72c 34u l zsy,stqnd.lnzn6 cx-w1omputers are plugged into a single circuit 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 s o k;h;-*8naxf t+vckvimple circuit ashca ;f*;-kt xvn 8vko+ shown 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 batter +h paj.bnrutv9q:5-xy is connected to four resistors to form a simple circuit as shpa 9-5h: qtvn+ruxj.b own 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 il(o 1cr fhfb-*deal ammeter, a switch and three resistors are connected as shown. With the switch open as sholorbf(* f1-hcwn 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 three resis:v+bao.ah .ol wg 2hy,tors are connected as shown. With the swia: 2,yhva bogho.+lw. tch 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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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 and three r 3r e+k3wnje)nr x kjgmgeo;*0(ggl7 2esistors are connected as shown. With the switch open as shown in the diagram the ammeter reawo;30g gx23 nkg*grr7 )(ej+keelnm j ds 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 o2r)mlsr w;3yij-,jn right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, j;o23 li)ry m-, wjrsn 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 show :ltdx.r -/lpse)j:dm n to the right with resistancesj ). sl- dpl::/dmxret $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic 8zq5 6do*jfcoal resistors connected in a combination series zjco f dq86o*5and 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 get5z, m.az1 nfive identical resistors connected in a combination series and parallel circuit to a vol a5zegt. 1n,zmtage 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. W:6qdqethkr6ygk) g-0) jqo+ v hich bulb will be+:hgq)6 vr 6k t edgojq)-k0qy 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 ammeter, a switch and three resistors are cn3yi 8r)/p npponnected as shown. With the switch open as shown in the diagram the a)3rn i/ npp8ypmmeter 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 battn qjq bly1/vq+r)+gs-ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown qq)l1 +qy- +bnsgjv /rin 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 ammeter, a switch and three ,jp0ft8kk g+kresistors are connected as shown. With the switch open as shown in gk0pjkkf,t+8 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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