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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/dti( u67v jmk exists in the metal resistor connected to the battery. Whiiujm6vk ( 7/tdch 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 resiwzin//e6+nrkv,u4bf)* eg nfstors are connected in parallel, the_________each resistor 4* nznfbunei),k +g/e6rvfw /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 wire of a opy1 8-duy. jmvaqz) ca,f-:ns 4l,a alightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coole8. )o lm a-n4a vjpa- :ufsqza1dyc,,yr. 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 is the a79kcv.lsj m5j ++pqmo c m.vjoc5pqks+9jm+l7 ronym for 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 has length L and cross-sectionaiucqu;s9 b 3meg.;dw/ l 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 tq e9u. icuw;g3/md b;she 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.h(v6tqdu,fcp:mq-* vwucm;1 Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistumc6-pqf qv1tm(c; ,:d h wv*uance

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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 twice the diameter andub8cshg0 b; r/ half the length of wire X. If wire X has a resistance of R then wire Y would hav0cru/ h 8sgb;be 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 resistua(,zpy6m/z2/ bx1qvnj wi o:or 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 this piwvmuzzbnxq/aj 1 2:,6 yp (o/rocess?

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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 brigh bf6bmm;q,,quc g 5d8ba q3,chter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light 3d c,,qb5,qgbu ;8am6bcmhqf 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 materdjb;gw4;, vvhql o;(qial. The length and radius of eac dbg4vwql(q ;h;, voj;h 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 connected to a battery in c.s ya udg.81 zry+vc+; dukx1the following way: “Two resistors are connected in series. This combination of two resistors is conne d yk1uv+csx. dac zg;ru1y8+.cted 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 accompanying ci4(apa)f lirab)kn 6wz a4r5znhn9:m-rcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.ap9- nnnaz4)4 r6mw 5)fa hria k:z(bl0 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 rig0 lzba+ao.-bpht. The three bulbs 1, 2, and 3 - represented as resistorsz .lbb+0o -apa 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 as3 (;k2+ mbztwdy9czut the right. If the current in all three resistors is equal, whm2dtz;9+y k 3(z csbuwich 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 represe4e..hr r.r 9wx; dtwcax rpt.(nts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or x dw4(whxa;pt. t.r9r .ecrr.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 nrjg-a2rb9 1 lkro8kv,,) yonsimple circuit shown where resikog2rao8 - y)lr9nr,kjnv1b,stors 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 series to a ba6f t9gdgfe:xsq)jx4 a+ ,vdf9 ttery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connectefxj+ d,9e6) xgd9a:4qv tgffsd 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 vwb8q-z.iyh6a (sr t(j/mw 4 d pass through the identified resistor in 5 secowy(i.( 8t4q saj v/h -mzdr6wbnds 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 resistors in the following simple ze5aqt d*wt4a+/.gytcircuit have the same resistance, which would dissipate thatt5/ z dgw*yqt4 e+a.e 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 reok2 g qny-h4k 08nw8icp2d9cg 9joyp0sistor is 1.0o-0y4n208n cko c pd9i y8p2h gkw9gqj A. What is the power 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 connecteq4zd)w 6aesh1d in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ωa 6 1hezw4)sdq, 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 resisw;0 1h c6cp2bghc-e ritors R1, R2 andR3 are connected in parallel to a battery. Suppose 0g -wh2 hp6crc ci1e;bR1 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 cx 2-5+zmqv n7t;pnfguewftw5z2- j,and 120 volts. What is the maximum value of eq5cfnz,+- 2 nwt25 ;fx zvmug p-7wtjthe current 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 ofq3g,5y )cvhcvf1 rf) h a 60 watt lightbulb designed to operate at 120 volts1q y5 cgvh)h3c) v,frf?

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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 3xxe,wy8 bp 5tthat is dissipating 36 wa x3b ex,5p8twytts 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 marked "120 volt, 600 b 2n2h7h3p2eq9l50 mfcvlkyd watt.” In normal use, the current in it il3cye9nq7khlhbfv 0 2d 2 2m5ps

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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 followingf9x.p 29*acvame1jz n resistances could NOT be produced by a circuit containing only three identic 9afj.*1an2zc pmve9x al 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: i2oi)ldze4 g three 1.0 Ω resistors. Which of the following equivalent resistances zd:4gi li)2o eCANNOT 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 diff1, 5q cf:r g9psqu4whwerent configurations. If all three resistors are used in a circuit, how ma 4hwp5u9qsr,1c fw :gqny 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 ba h4 fq4py-gk:mttery, 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 batteghypk-44qm: fry 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, havinbhg,ua c5bw k8ymrha(8:,s.d g resistance R1 and R2, are connected in parallel, the equiw h.b8bca(dmh,sg uka5:yr8, valent 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 designed such that ib yuq- uk7/xm4l/0pvit has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time p4ilb kx-0qyuu 7v//mthat 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 diss4rn0 zcec *,v *xx ,xg44lofeyipating 36 watts,0rveecn4*y 4x 4* gcxflxo,z of 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 am.nbpk;0u19 nrp ad4txperes of current when connected to 120 volts. If .an0u94;pnkr1 tbd px the 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 hor9a3hw l6fdg3*v mrm)w much would it cost to keep a 100W lightbulb lit continuously for 3 a w*r69hgvf3drlm m)1 year 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 lightbulb results in ak rs:jdi/hr9 + power of 24.0 W associated with the bulb. Which one of the following choices +r9 hk :dsrj/ibest 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 of six owns a computer rated :np(n 8unbx4jat 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 2 p4xnu( n:nj8b0 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 0+g5bp yy0btpform a simple circuit as s yb0ygpbp+5t0 hown 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 a simple circuit0h5)3holf(txwre 9i d; jxlf; as shox9l t)f0w(3 h elf ;rxo;h5dijwn 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 ideakj af5x1a0 :1lofz,4cxg+ k v0hw/ zubl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 l xf+/51azgfcjvxa 10zh k wu4ko:b,0amperes.
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 re770wnbc7 (mep i mlo0zsistors are connected as shown. Witce7o(7i nwzm lpb00m 7h 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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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 anp nvdbg *4lrq(,n*0h).. 4xfn ndu fwfd three resistors are connected as shown. With the switch open as shown in t(*) bf rqnn ,.4vdnp.0h f4gnld* uxfwhe 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 eq1l9cjcr;lxp1yx7 vz-sn5 iu) uivalent resistance? Assume that all)v x-s9 r11x7 p jicu5lycl;nz 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 shown to +vah2 tilt 9w 5-6eu*jkvp,vg the right with resisla ip,uvktj *-695+vgewhvt2tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 co0 yyma e.p0aj.nnected in a combinatio0 pe.y0.j yaamn 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,xbj(rnp 4yxef-dw/ p r c jj6ojs3674 identical resistors connected in a combination series and parallel circuit to a voltage pr66 je-xj(n4s3jy, xpc7/ b jrdwf4 osource.
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 circui76 ka q.zqyi.jt diagram, all of the bulbs are identical. Which bulb will b k76azq.. jyqie 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 amme5dva/ u ea)u:eter, a switch and three resistors are connected as shown. Wit eeau/: u)v5dah 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, 0up i 2t;rqal m4k tvb4)/gu6xan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown) 60a/4l pk;rtq tbuuxvi2m g4 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 battery, an idea3fm(my6a noywtt 9z/ 7l ammeter, a switch and three resistors are connected as shown. Wityn/t 7 6m 9o3aywztfm(h 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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