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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 c w/lx+vglx v)*fj13 msurrent 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 direction of the electric field through the interwgl31jf vs* mxvl)/+xior 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 paravn6 ax r e.ml.g:u(ez:llel, the_________each resistor ealg .un(:r e.v6:xmz 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 lightbulb causc8 ;iq4hzgal lic2l3d 7jx; ( 5us5bbzes the filament to become white hot, whil q2bcj3lc (5b 7 gii ;8sdl4u;ahz5zxle the larger wires connected to the 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 ligvyy08olbsp e-jm uixn5m -p,7;o3 0e yhts are being replaced with LEDs. LED is the acronym for which one of the following -7-y e 00y ve 5o;, lbm3pnopsxyji8umchoices?

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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 graphit1r5i gzg.cf4 je resistor 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 the cylincg.jg5rz1 4i fdrical 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 e c ir xg6k.rzd*be++xi 95 34lta3yyiare made of the same material. Wire II has twice the diameter and twice tx.ct x *5reaz+3yl3 d64g+9r e iibyikhe 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 sa2 fdomugn:(*y h( 8hx8ej-ycfme material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistangy2f8 un:8of *myx-((hhcj dece 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. Thi6rhm.qb 8 z7sws piece of material is then drawn so that it is a cylinder wiwz 6hm8 sbr7.qth 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 Edisouykmhp4v+qcp0v+( 1 yda 69tj+mg2 nkn wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the li6cm4tphn +y gd(my0kjv9qp 2uv ++ 1kaghtbulb 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 ,uae6 6mc pim8tz h(2(gm;mtspb4, mkmaterial. The length and radiuza8(iuh 4m; 6k 6eb g, t,sm(mtcm2pmps 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 connected to a battery in i5( yrynga ;m; 66ztguthe 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 connected6ngg;mi5 yar(u ;yzt6 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 diagram has internal z /6/+ys(ggqe* qx;d) kjej laresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading a eed;//y6xkj qg s *+ljgz(q)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. The three bkbeydnzu.7 o .ha 86k /(,edftulbs 1, 2, and 3 - represente( t,h8kdo /n.kybfza.eu6e7dd 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 cig..( ut8dv gd w 4rdr*xk4uiio 5s+hbyb(-m:g rcuit at the right. If the current in all three resistors is equal, which of the following statements mustg:ds*-b m4 db i8gutgu(+4y5rh.d ik(r.xvwo 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 represby,bo1acn c(0 u bnj;e,c4 y-dents a simple electric circuit composed of 5 identical light bulbs and 2 flashlightdb- ,0( bbycc4n;j1c, uaoney 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 i*v9 6accjuu :;gd8ja ls NOT true concerning the simple circuit* ;8:gjc9jvu ulacd 6a shown 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 connecte hhvi*;)xyp- qd 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 each othev*qi hhy)x- p;r 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 (hv *)e iti,sldg7s81v9yu y/ bp khy0 through the identified resistor in 5 seconds once the circuit was cld9gesty7u h)v hlibk1iy8*( s,y0v/ posed?


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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 circuit hav 48b*ffy39rpr.+vx, jwjeqcx e the same resistance, which would dc.bq ,3fpfx9e * + xyrwr8jjv4issipate 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 cirf.5 /hfihc29q 80whgq4urv b mcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is h0cw fi/hvu89 m4grq.5bqhf2 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 R.qh .skg pk():9plddlbh e 1n*3 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 ofg(s qk1:.9h dbllep kd).hnp * 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 rew5 7vne:e4 do1m pixn1sistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acrosi:dwnnex 54e71v pm o1s 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. What is the maximu w7t65+y 6w*psafere fm value of the current under these conrsa*fp+7f56 weeyw t 6ditions?

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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 lightb7gcc*t z8w i(qyj*o4g ulb designed to operate at 120 voc* zt4 i*8go yjqcw(7glts?

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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 currenfd9 mgk66zm-/eey+a gt flows through a 4 ohm resistor that is dissipating 36 wat+f -gea 6gzmek /md69yts 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 c. 5xxmxt36bl hlothes is marked "120 volt, 600 watt.” In normal use, the current in it isx x36t .5xbhml

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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- pzc7j58kt) xy4my zj NOT be produced by a circuit containinxcjmj4z-pk t58y7 zy)g 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 resistorwvy21qf54m7q fo.z xds. Which of the following equivalent resistances CANNOT be produced using all three resistorsy2w . fq7xo1md4qfz5v?

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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 baf iu2 .00xqtqe connected together in different configurations. If all three resi.ut 0q02a fqixstors 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 resistcp;/esc c.zh ek*/l8wor is connected to a battery, 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.k cezw ce8s/lph*;/ c 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, ha4d7+ t.sb,ibh ye mgt9ving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combinati+ed9,ty.74 btsbhm g ion 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 it has a res 3vi3aa , ym*1o;uhjt;k a2halistance of 12Ω when operating at 120 volts. What is the minimum amount oj;va* ;o a2t ui1,lh33aym hakf 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 dissipating /rqoqj2gcy85n ,ok-.pu*zrwidq) u; 36 watts of po8q zr5 ;yr/u.owk -n gudp, )*ci2qjqower?

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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 wh bqa.l4 jrv+mtpn).q 1d jjv2avmw;+ 9en connected to 120 volts. If the price of electr2+ aqvj9).b ;p m1vl4ntv d +jr.jwqamicity 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 tot* kx-a ,cbvl;ann1)a keep a 100W lightbulb lit continuovca,1at)kn b; x la*n-usly for 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 a power of 4t)cgefay1* ;dr6dji 24.0 W associated with the bulb. Wa e;rjy4tigf *1d6cd)hich 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 of six owns a computerun/)hyl t* n.rpa+hj* rated at 500 watts in a 120 V circuit. If all computers ayj nu/*t.+lr* np)a hhre 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 ;d*p:r+lp 63thi j kayfour resistors to form a simple circuit as shownl6r 3yapdijp +k ;th:* 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 conndmr-y49 3qznp ected to four resistors to form a simple circuit as shown to the z4q-y3d 9nmprright.
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, anmzjqn3cq87y0 4 qbxxljz,p s4,)c y 4z ideal ammeter, a switch and three resistors are connected as sho pzxxq lc8q4j),4yjs qm4 0c37zzbny, wn. 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 ideal ammeter, a switch and three resistors are cos(nm13onm, g cnnect n(cmo 1gnsm3,ed as 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an imk:zw2ou)2r i v; x u:ul8xnt9deal ammeter, a switch and three resistors are connected as shown. With the switch open aso ) nxu9u 2:rxwz2m l:i;vk8ut 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 (ul g6 zb;a:k3v-ijxi the right, what is the equivalent resistance? As b-;zli(6i 3jgauk:vx sume that 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 shown to the right n9ek*;8tvy l.t mi8a f with resist ai.8l*mt;yf9nkt e8vances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resist5; l:z d.yb frnb (*p v)8-as/tiovntzors connected in a combination series and parallel circ s;l ft85.(v* rza:/ bnidt-ynzo) pbvuit 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 identical resistors connected in a combinaepsw bk :060v,pyum( ftion seriesbep0py0s fv6:kwm , (u 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 iden(u(h8a ms6sw ytical. Which bulb will be the brightest? 6umwsa h sy8((


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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 a7ubt e9(h +qafre connected as shown. With the switch open as shown in the diagram th(ht ub+af 7q9ee 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, uhoeiz3t s)d ;to nsm90,e(l 8an ideal ammeter, a switch and three resistors are connected as sh hnte9lt3es d) osz( 0i;,um8oown. 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 battery, an ideal ammeter, a9p gi) v36 u.qyayby +xcbt-1t switch and three resistors are connected as shown. Witi+u6v)b g3.yty q9ybptx ac-1h 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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