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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 currenm9-fv4j b-+f fbrrd*o jgj+g)t 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 interiogr+)ffb ojj94fgr - b*m+dv-j r 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 resistoru() 8x3wf o26ys 9lu8gfmotnh s are connected in parallel, the_________each resistor is tg38xfo9yh f(oun6ms u t)2l 8whe 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 k :gath7st .8wfilament wire of a lightbulb causes the filament to bgthtksw7 .: a8ecome white hot, while 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 lights are being replaced with LEDs. LED is the a.jpj) +y (c0ioz66 x t4quckm 6wgyd2foy)(pkcronym for which 6jquy()f6c).y jzoi6tppc( wkydo2 0 g 4 +kxmone 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-secti rejnlyew;bxp*r)j yy8q, 5 ;8onal 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 th8 8;x);jebpy e ny*rw, rqljy5e 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. Wire II has twice db: bxi1frlealt 5 hh4t o+*gp.5m8f0 the diameter and twice the length of I. If I hasm0+5o ttai*p.lx:418 l 5 hhbfderbgf 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 twice the diameter an 9r;.coitx g:ed half the length of wire X. If wire X has a resio x.e9ct; rg:istance 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 lengtg46e)sxf: ; y jxd y24azme3z+r8ww ibh L and radius r. This piece of material is then drawn so that it is a cylinder wab4 3x)z wy se42iz:j8r6;yfw+ gexdmith 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 *e3k ho765sibxgtpat/: lwt4 a brighter 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 at a 5:t3oi/4b xtlsk*a7tewhg 6 pgiven 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 materiag 3r5t13;pn8icctej uy+( e 2zz0welxc 0yez4l. The length and radius owz 280tx gu z(ye4 1j3;teirc +0cnzy53 lcpeef 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 gnir)v*i3 ( mnkjvek 4 uy.a*hpt)5.w 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 resistn*n3) yi4 rt v)ehmkvaik u*g(5 w.jp.ors 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 ach+197mogg j qn2kwa( kgg.nj (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. The von gg9m1k .jjg(k2o+an( wg7qhltmeter 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 bulbs 1, 7zr zf:h9pme zw- 5* 6sh4irmw2, and 3 - represented as rewfi*sz wm6hpr95 h:z 4m7z-r esistors 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 sim,q1s n t4cg(w2+l clhl/;csd5ji;d wzple electrical circuit at the right. If the current in all three resistors is equal, which of the following statementsdg5c+sw ;1(whl ql4sd;l2zn ,/ j tcic 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 electric circuit complg4u;j lx1fn1 osed of 5 identical xjlug 1 ;l1nf4light 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 tru0+n8orb1nccpdw -0u+pu+ )lvxu:sko- z a h9z e concerning the simple circuit shown where resistors R1,ak+-nu0h+p0zudv) z c9bou8 plwc1+ x :nsro - 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 serie *n;5 r2lug 7umyzg;pns 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 other to the same battery, which one of the f*n72 lyuz umn5rggp; ;ollowing 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 c2c7c-c y fx4ahoulombs will pass through the identified resistor in 5 seconds once47accc 2x yhf- 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 resi y)tl7 vz6rz/gstors in the following simple circuit have the same resistance, whiczr yzvt7 gl6)/h 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 n; 9b:np d2xqncircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What isdx b9 :2;pnnqn 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 connected in series to a battery. Su,c) ee(81mlcv 8t oxa/b+*rpc)ob mj0.n ahcbppose R1 ca+ xm 0a.8 t,bcbb) v(/co nc8pm)ce1oe*rlhajrries a current of 2.0 A, R2 has a resistance 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, R12i,lokik q h3 hn2)9ruk 8odx2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currexhquikrik , nk )o3 l92hdo128nt 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 f1to9qbxe7 l*and 120 volts. What is the maximum value of 1xoq*79lfb etthe 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 z/29jtvt76b3 fakz ntm .ar - vy;cek9of a 60 watt lightbulb designed to operate at 120 volts? k9fvk;7 . nt3-vc2zyz 6trbmeta/j 9a

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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 throuq s/,spx2o8csvqu x8; 3 g3vdhgh a 4 ohm resistor that is dissipating 36 watts 8cuv,sq qp2s/;hodxs83 3x vg 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 u3x4ul8 o0n juwexm87tt+* yis sed to press clothes is marked "120 volt, 600 watt.” In normal use, the8m4e* w 7yu8txl+jto n 30iuxs 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 prod*q s32 .utcicesngi8p l+;r-pr6 02 bj 0kjuequced by a circuit containing only three identical 6Ω resistc06 gl2br *urjks8i p 3qe n-p;2ceiqtu .+0sjors?

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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 1pcav9 9pd7at)k l2pk0)p 6dyq .0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all pp79)09kkyaa qd)cp 2dp6vtl 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 connecytn2z 7;znc7eted together in different config7nc2ety;n 7zzurations. 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 batteu9mnkai;c c6+v9yr)cry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if vi99 knrcu 6 mc;cya)+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 resistance R1 and R2, aref-* x ex6;ra( exezcy0 connected in parallel, the equivalent resistance offa0-*cr(;xy e xzee6 x 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 j) c i0i)ahuz/designed such that it has a resistance of 12Ω when operating at 120 voz) /jhu i0ca)ilts. What is the 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 throug 3o exalkvx:/ligw :6xl 9au;)h a 4 ohm resistor that is dissipating 36 wat ):x6 :kwxg3l9oa;l/xalueivts 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 amperes of current when connectede .k /e5g.be(zzozy4q to 120 volts. If thq 4.zb(kz yz/5.geeoe e 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 how much would it cost to keep a 100W lightbulb litp6q g3r.d 35ns kmhhq7 continuously 6.hpk3rgq5n d7 hmsq 3for 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 rkgwh236i1 c asesults in a power of 24.0 W associated with the bulb. Whii s1wk6ag 3h2cch 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 ownu7p:liq( : ,ddzkv-oi0ah*lps a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse-d*diql::l iz(pp 7uoa0v ,h k, 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 resis,g9tl:3* nvzrhqqj - wuuqq :7tors to form a simple circuit as shown to the ruvq79 hurl,3::qjng *-qzwt qight.
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 simpl1 2d*rpgfqi pfa:c;h5 e circuit *i21fp r qg:p;h5adcfas shown 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, aec3-o31act3b omh kv 0pa:g 4cn ideal ammeter, a switch and three resistors are connectcc3cmogot334: 0ea vb-k a1 hped as shown. 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 thr , v4luhgi/ ,42iiwh4vut,ab eee resistors are connected as shown. With the switch open as shown in the diagram the ammeter ru4/ e,,btihialgv2 h44 , viwueads 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 sw/5px5u . j9c y5aazgouptk3 r(itch and three resistors are connected as shown. With the switch open as shown in the diagraa/yu5 9 ao.35pr pg(x5cuktjzm 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+85e 6bltp2 ol oz i0:vd4llbn shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has nb0t8:bl2n4poldzl5e i l6+ov o 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 rigq*9+h- bq d:fc2qnepv ht with resistancesqe- :qn9*q hd fvc2pb+ $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in tniz9egh*i: *czr6.w a combination series and para*wznr: tzghc ie*96i. llel 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 identical resistors connected iywcf vb -5rp33vk: 4z eo/)nven a combination series and parallel circuit to a volpkry)-fb /ven 3vv3zwo :e45ctage 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. Whichqfgmbxl(qls v ww5m 8dp49/:- bulb will be the brightest? 89dwm4:lfq m5w( lq/xg-sp bv


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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 batter/d-op3q mq l3gn;hci8 y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sho ;-cni8l /gdqohq3mp3wn 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, an ideal ammeter, a switch and thgw9 ge*n7;+ de d,ststree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp+nde* tsd w;t79gs,eg eres.
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 o;ac m) 8zckc 72el.lkideal ammeter, a switch and three resistors are connected as shown. With the switch k c7k.le zc)oml;8ac2 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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    总分:50分 及格:30分 时间:不限时
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