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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 existsir;x fh;n.8uv in the metal resistor connected to the baf ;vihxu.n; r8ttery. 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 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 res(j8 l6nh rvvy, j fg9,odk.dm.istor is the sal, v.ky96rh 8( mj.onfd,vjdgme.

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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 o vpff.h6 x0g-she0 iq7f a lightbulb causes the filament to become white hot, while the larger wires connected to tife -x007 ghpq6fhv.she 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 ia r sw:wcn)8 v)hvmr86s the acronym for8wsv86a nmc)r): w vhr 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 resistor h udlbtjy832 q;as 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 t;jt2b8 dqy3lu he 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. Wi98j30v gqr;mv9kc/e s e2 jytlre II has twice the diameter and twice the kg;jsv9r0 ec3vm qt/8yj9e l2length 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 has ts0lji frq0k+ /wice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance ofjqk+ rsf0li0/

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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. This piece otq pm.:. ct2oif material is then drawn :mto qpti.2 c.so that 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 dex:l--y;ouvkd/chg9l m mj3bu wy9 f-6 cides to modify the filament. How should the filament of a lightbulb be modified in order to jm uxym :9 l9bvh-/-;u dy-3 6kgolfcwmake 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 length ag 3 qaa:0oe-pund radius:e ao-gp 0u3qa 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 connectedrw/5 w8ig0oc/,kjk ;wojyf6u v 5k5tv 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 65w/ow5i/c ju8ft;yo 5kg ,rv 0kwvjkto 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 inivwkx1362y)q4dji 6hd/2 u - qfgbnee the accompanying circuit diagram has internal resistance 10.0 dwn6 kbf)3/gq-xv 2i eh64j2 1edyu qikW 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 the right:m z/+ f/skmzif /b;j ,(hedzj. The three bulbs 1, 2, and 3 - repjjek/ d,ffzs+hmbi (mz/z /:;resented 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 electricalknn j3)* bko+i circuit at the right. If the current in all three resistors is equal, which of the following stk)n +j3o*knib atements 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 represe4j 5yj iq.u6+ pyg.aponts a simple electric circuit composed of 5 identical ligi opj.uaj+yy 5.p4 q6ght bulbs and 2 flashlight cells. 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 following statements is NOT true concerning the g08fo qs;;r8hblz o ka )5f*vlsimple circuit shown where resistors R1, R2 and R3 are have equal resistan*fofl0z g qvba ); kr588;ohslces?


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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*rok7c5l y7arpaa( 9-* f7kaxyn x:gb connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with af7b ka9xay7l5kapg- xonr(y:*rc7 *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 inw0)gr9mv b u3g 5 srmv)0gbg 9w u3econds once 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 resistor ; h(mg/-;s3yy,riruk+ ueqt fs in the following simple circuit have the same resistance, which would dissu ;ks,;+figq y tr(y3- rmeh/uipate 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 rermi/)bj tbvnex 3p0u xi,o oc*l23j;np0hn(*sistor is 1.0 A. What is the powex) n* pxmbnlojur03 ,noevj3tb pc/h; (0*ii2r 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 R3 are connec 2b7sy jfrl/u,ted 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 ufl2 b/,7ry sjW 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 and 53yw 7aiz/7xcy l/gpd5u5 wsgR3 are connected in parallel to a battery. Supposig y5p3yws5/x 5a77wgc/uzdl e 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. Whas 0z2wfa1g 9;anp b,rut0bv0pt is the maximum value of the current under these condit,2fp 9nbrs01 a 0wap0 tvgbuz;ions?

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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 resistan nec:gz7g; ,v qr4bx;kce of a 60 watt lightbulb designed to operate at 120 volt4e xkz,gb;7crngq ;:vs?

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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 dissipa8vgpr8 ;lsjc 7x:wbb )ting 36 watts of ws7bc ) 88;rbgv: plxjpower?

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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 i3i8gnj; 2+ -x bduyhtkron used to press clothes is marked "120 volt, 600 watt.” In normal use, the currjkn3 d2b- 8;h g+txyiuent 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 resixvc4 cooz* +qmw8 o,5xstances could NOT be produced by a circuit containing only three identical 6Ω resio4*+,oxmw czovx c5q8 stors?

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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 j(u 2lzwsra* 6 resistors. Which of the following equivalent resistances 2wr(* lajz6suCANNOT 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 in differcm*p7k*um zt 5ent configurations. If all three resistors are used in a circuit, how many different values of tozmp*75uc mkt*tal 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 total power Pry lv.hl5zzwg4,y3x - is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in sv4w,-l3l 5zyrgy h.xzeries 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 resistance R1 and R2, are connected in par6-n y4 b0q. v:u/am sdoys6xboallel, the eq6/d06m4oy x ob.yqv :us-snabuivalent resistance of 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 q588*q2 1hzcer lqv vndesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 81zve5 vh8*c2 qnrqlqkg 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 curre:kb ,4y2ac*gilw - vvk 4og6z2dho5lynt flows through a 4 ohm resistor that is dissipating 36 watts oo5y2klz 4 ,d2w6 *-v o:klhc4 ygvagibf 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 current when connected to n 7pg razk,v4,120 volts. If the price of electr4g,na vkrpz ,7icity 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 cos,z(w wtteq8 8ot to keep a 100W lightbulb lit continuously for 1 year at a rate ofztqo,t( 8we8w $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 4.00f 8*d4uc b2k logx6.pe A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the x4g u *.8ledkopb6c2f 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 famileqcwz.o.uxt 2 ;a ; (d1(djvusy of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a qu12t;dxw z(;. cs.aujv(e odsingle 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 battskgbt (3 +itp0ld3bh5ery is connected to four resistors to form a simple circuit as shown to the rightsb + kp03t5htbild3 g(.
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 resist 1ze1,g,sidsnx* cw+bn19,o ud kj6 rpors to form a simple circuit as shown to the right. n 6dc ,sgp1bzw u+91ej s*xirnd1,ko,
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 ammeterd n 9wrwgn9m3-, a switch and three resistors are connected as sh wn dwmn9-9rg3own. With the 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 idealfmzfxan i)rd8 )b* -h8 ammeter, a switch and three resistors are connected as shown. With the swhn 8mfz fr-a bx8di*))itch 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 ammet9la8 dq6c5e-9une p/xbhlii)er, a switch and three resistors are connected as d/uqh la6i l x-e58)e9binpc9shown. 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 snrkvzxh .m0x.v)zu:s oi ,*o4hown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resuxos4nk: mvzvo0*. ) z,.hrxi 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 circuit shown to the rightqr(m 79hcuyt/m/x - *v 1 fcl9xbwe+ss with resixcwucls1r+ meq9m/vy*x-f sb 9t/(7hstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical resistors connected p/ r-4x weotl6in a combination series and parallel circuit to a vo6rwe- /lxtop4 ltage 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 identicao)gbb.r) h1til resistors connected in a combinationti1g)b. bo)rh 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 the bulbs are idenfjx 3 sg2e -hk y7x2p2zcfh.h:tical. Which bulb will be the brightesej.xhks-ff2z 2 yx2gh3hpc7:t?


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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,zy0aosjxyj/ a,9; (a t:)mpi x a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a;a/syi)jtx jym(,0p:a o9zx 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 id9 )0(i ok ncof4at-yyzeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 -0 yz)yonkaict4 9of( 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 resistors are qs8dv3 p,ut2:ivpxw rhb 3t2h- a0 )ojconnected as shown. With the switch open as shown inp3uo)a,xqwj r: t b0t382 pvvhid-hs2 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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