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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 el mg0x3(r:h6rbnsf *kj ectric 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 direction0*hxgjs kfr36bnmr(: 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 80- w(vov1dn387p yy j59bbjynxz jx bresistor is the same0pn z8dvxj yj3ob7b yb(-jyv1nw5x98.

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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 lightbulb h58je i/,qcpi causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thqic p85 ,hj/ieis 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 is th8:ci j *8 /a9cugcsxzre acronym for which one of /g8rc9 sc8x:juc *ai zthe 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 resistorqodbf- ./9 s 4dpy;ihr has length L and cross-sectional 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 the old resistivity of.-q;f yios9rd4b/dph 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 materiud(,wicsh e kt-u294/ -cnxfeal. Wire II has twice the diamek-i9ucu fc4, tx/ hnd-esw2 e(ter 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 madeeqd /v*9 zfo(z of the same material but has twice the diameter and half the length of wire X. If wire Xo9/(zfz e*qv d 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 has length L and ran vv3u w b*rkz.s0cj).jp .ct5dius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to thezuvk 3r. *cnt5w 0.vs.bcpj)j 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 brightt( hws uc(2*aver light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified ih2* aut(svc (wn 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 made of the sa ze8y+tc*06kg: 4xjk uvu sc:pme material. The length and radius of each resistoj6:+ t8 *cspkuz:c4gek0uvy xr 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 connecte,i9y*;aa(jlu c0kyn;ph61 ebvdose1d 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 1ys;dap,0ub eni9 c kvejayo1 h(6l;*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 accompanying circuit diex9 :e-3 mvjriagram has internal resistance 10.0 kr9e:v e3j ixm-W 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 coz-jkr*+p gw 0smpound circuit shown to the right. The three bulbs 1, 2, and 3 - represrgj0+wks-p z*ented 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 current in all9 )bdqtes md.( three resistors is equal, which of the following statements must be.9td b)mseqd( 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 qzx+l(+kewo n ll,+c syl(9e1 simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells.n,ykll(+eqe+ oxl+1(czs 9lw 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 followinm1kxpa, uj-j 2+a;43ulejhtfg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and Rlfehjumkt- 1j, jxp3a+ u 24a;3 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 battery7 8pn 56gkdnhp. 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 the following choices 7h6d 5nk8pnp gbest 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 id61hx5glc ,ilob m71 cnentified resistor in 5 seconds once the circu5l xoi6h1 n7bc,1g lcmit 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 circu3 9md.kmzp.mdit have the same resistazm.km d 9mpd.3nce, 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 accompan j3na-nbcp )/ i:kdtu-ying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the powenu3tjiba/dp):--kn cr 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 wnnsct 3d:3wow6k,r; b hmv(fgx(;h)R1, R2, and R3 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 theh xvfn:rd3g c63sm;b,(; ht)o(wnkw w 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 differentx: m(wqjir-4bd*6o gw resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across rw qxw gbd(mi4o-6j:* 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 gfyypgm0.f k; x(28keis rated 1200 watts and 120 volts. What is the maximum value of the curre 8xk(.gf p 2y0my;gekfnt under 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 lightbulb desigaj524 kmj)ay ined to operate at 120 volts k jai54j)y2ma?

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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 resisto6ptv7syh 4/dfa nwn*f66x ;vh r that is dissipating 36 waaf p6 64dnwfhhv*x v7sy t;/6ntts 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 i53t:fnab) om is marked "120 volt, 600 watt.” In normal use, the 3f ti b)amno5: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 resistances could NOT be produco2 p+ ya *qrbbm.x-f52lh2r nied by a circuit contx2 2rlbh.*2p n 5o abfqir-m+yaining 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 ft *k kv/hvas-2ollowing equivalent resistances CANNOT be produced usiv k/ sta*kh-2vng 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 connoyv(h*t -yr f/ected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance cythy(-/ vf* oran 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 te c-v9ofe;+9 gf *gmxko a battery, a total power P is dissipated in the circuit. How much total 9gf*; mkg-fee ov9 +cxpower 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, having resista)wpanl8vmf ;+v lip-a9vv (2unce R1 and R2, are connected in parallel, the equivalent resistance onpl +l-a )9vp(f28v;w vvaumif the combination 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 sj k17w.lb yx8such that it has a resistance of 12Ω when operating at 120 volts. What is tbyws7x 1jk8 l.he 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 resistorq.q) bw9eul qk4 vw08z that is dissipating 36 watts of powl)e uqz bk4.w89wqvq0 er?

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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 why/6rkl2b nltm 5nwi36en connected to 120 volts. If the price 6k lnt6 2y r5nbi/3lmwof 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 cont0 ux5a5v linz3inuously for 1 year anx5 vu z5l0a3it 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 lrqb5* fn bv8.i3,z mygightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices be nmg,5 zrfi.b8qyv*3 bst 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 famzpcdi9 : v-qz7 t2vbg,ily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20bv ,:v2i gqct -z9pdz7 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 sij*o9oq ef o8rd(*vxjub :w-/qmple circuit as s qq/ox8 *(vdw-fe*b ro u:9ojjhown 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 is connected to four resistors to form aj v .6(kwj(s(gpu7ic ,xsr:qn simple circuit as shown to the right. (jju7g( wsp.vrkq6cxn:,(i s
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 and three resistors are gm 2hm- 37ehjwe22:f mpm(lgmconnected as shown. With -h eg73hm2mmjg 2ml :2 (fwpmethe 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 andx*i 6kg4pn, 19svkkt)hij p7w three resistors are connected as shown. With the switch open as shown in the dia4g i1xsi 6)j*v h, pknw9ktk7pgram 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 resistors are coy5tjw+dq; 0d) l4 cidgnnected as shown. With the switch open as ydgc l+4qj)di0wtd5 ;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, what is the equivalent resistaab7s m)5w yso;1 /n. fbmgm8bunce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistmg7s1;mso 8w /by.5 ba fbun)mors 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 the right with resz 5if-4f nfs;uistanceuf4f isz5;-fn s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 )pq6 n-l sp apt.uw9a)five identical resistors connected in a combination.p )9lpnu)a6pwa-qst series 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 identicq4++qb3y3aw2ht fsfl.j7ktg al resistors connected in a combination ser3t4 ft7a qqg wby+js.h +3l2fkies 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 wojxqf *)b khkg.1 8(/yc(6,xthfdj jthe bulbs are identical. Which bulb will be the brigh c)k(fxhohj /*d.w tg f,jbx jky(186qtest?


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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/x whcbzn26.g,xin xdxh r 6t)2-3h rb connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes)wtx bz-36hc, xn/r2ri6.xhdnhbgx2 .
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 idexz*uig5nwz7zbb 0 r;+ al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe0gu5 z*x;w7bz +brzinres.
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 swit2vlvy p iz;c q:tr;a*1ch and three resistors are connected as shown. With the switch open as sh 1vlzqia;*p2t;:vcr y own 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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