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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 currenttp vvy 6klv+6- exists in the metal resistor connected to the battery. Which one of the following choices best describes the6k6v+vp l -yvt 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____9wzwbc5 kp*rty66tx+/m f4me _____each resistor is the 4 r/et6 wcpmx b9fw6z 5+*tymksame.

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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 lightbu6gceewm-/l (oa1 lh.xlb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thighwm. lc/ 6a-xo( el1es 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 thensx4d-u ya t.:uo xg50 acronym :g4d5n.- s0xat uouxyfor 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-secty8eo5z. ff7)w;s d y qp/dbi-tional area A. It is to be placed iefy5wpy qi).8ftsz/-d o;7d bnto 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 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 materi:6tg9phjb- 7qe /kh bial. Wire II has twice the diameter -b67jhh:ep9b g ik/tq 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 made of the same material but has twice the diameter and ham91 nw1p6-mb1 y -gzkqwpl wc2lf the length of wire X. If wire X hk p9qwmzw1wmpb1l-gy 1n -2c6 as 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 and69)xer 2fxy3d a f7bcj radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance off3e c6 byj 9x27fxd)ra 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 w 4k8mm0x (42ibisajzwants to make a brighter light bulb. He decides to modify the filament. How should the fil a8i04 k2 sbmzmjx4w(iament of a lightbulb be modified in 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 fptl j5 m*xhr,l,/s8dof the same material. The length and radius of eacd*,/fr t 5m8jl shlxp,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 resistancef(:0 *kl e uvg r7(0b ecn.n5cog6j4tuq ap-xb R, are connected 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 to a fourth rockcnx*gen:e u60 r b04g(tlaf.j7v5u- qb p(esistor.” 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 inter03wt4q bsv e-snal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most near svs4e-q0w3 tbly:


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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. Tog zy2ayq9 0f74 7remwhe three bulbs 1, 2, and 3 - represented as resistofmg94eorqawz y7072y rs 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 electrvma x 3ds(d*c+ical circuit at the right. If the current in all three resistors is equal, which of the following statements must be t*s(x 3+av dmcdrue?


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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 circui9 zgsof5vdxi6+6 i tne-(n4cvt composed of 5 identical light bulbs and 2 flashlight cells.f 5od4se +n6(gx6vtzci-v9n i 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 f4a(laubrc2perpky,h9 m9:t*f ( m/x zollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R34e(plaky:bu9rt2 mx*z (,/f m9 rhapc 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 conne )hb6:,pvy9 bpj awm0fsoeup,8 l1u7mcted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements arepuvlbm:f)p,yj08h67w1, oump sb 9a e ideal. If bulbs X andY are connected 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 pass g-wj :hztke2gc:4 nr9 1w a*ly through the identified resistor in 5 seconds once the circu g-n wgc2aze1:t y49rk*whlj:it 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 ,q,wot8rtuuv3b ac-k) 4nbt w-n;v e6the following simple circuit have the same resnwv8bo k wcbe-qu ,)varu,tt43t;n -6istance, 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 accompanying circuit diagra.jmh h*xt ap 8s1(;omge1;hjk m, the current through the 6.0 Ω resistor is 1.0 A. What is the power mpmo a(;*.thjkjs11;x 8heg h 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 conbt0d .p3rz kz.7 mka7rm 5a7y+tvfpl;nected 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 o.d0 3.pttr +mlzk5 7br aa7ymvf;pkz7f 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 andR3 are connected in parallhbayuy + n,6fj pcmug /c/18u5el to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curren5+6nc 1yf8c/j , ypuh b/uuagmt 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.q8 az +)e6+u zh +n, yb+vi,5kprhvzjo What is the maximum value of the current under these +o,ib v 6n +j qk)h,eu+yhv5+za8r zpzconditions?

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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 6cs n5bh7lo krkzl-bw4s6zuo3(p1n v yk;x2 / .0 watt lightbulb designed to operate at 120 vol. /xs3b2n5 -z6 yokckp4l o(7hzunl;kvr 1wbsts?

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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 ikod*9o,.4 n xiaswb v4s dissipating 36 watts of powi,9bxk od n.vso4a 4w*er?

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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 watt.” Iqi;f0tdr l+5w n normal use, the current in wd;frliqt50+ 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 produced by a cw/opqiz3w):vjtw knz)nlf2nh5)j eem3t, 97ircuit containing only three identical 6Ω7nlj3f thvn)5oz) jwwep3:z w,int /q92)mke 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 thj y 2:ks9dy*bt/zx,1uag8to we following equivalent resistances CANNOT be produced using all thr1y ,atbd8 9 uwz/tjy xkg:o2*see 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 value+qpcm, t21j9vzry; d rs can be connected together in different configurations;,rrv 2 c1qy j+ptmz9d. 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 battedn/ 3ymjwc xe5j+;/ wury, a total power P is dissj mw n/uw+ dx/5y3e;jcipated 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 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 zlcghr)b)l-ufj+ftylq ( :* 3R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is l( u-t) rcl:ybfzlq*+j 3)gfh 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 resistance of 12Ω when operatid.x6 do doq6v8u;qm ne04zg3kng at 120 volts. What is the minimum amount of time that it 6x 4zdeok8gq6. dvmdq;03ou nwould 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 dissi*bq jv1x*l :2t+qj aizpating 36 wa2+q*qajz1 * lbxjitv: tts 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 connected to )x :dwpj:ffkrp xfq, j)v3( 9h120 volts. If the price of3x df:qjr ,()k)vf: fwphpxj 9 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 1j k1is+ gnw*yu o:b84i00W lightbulb lit continuousb4:y 8uni+ 1wsik*gj oly 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 wznw bq0w+,/i vo s.s824.0 W associated with the bulb. Which one of the following choices best represe,wqv.is wb 80nw/s+oznts 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 at 500 watts in a 12yhus:d; :m rfy ewvdpx,.+7r 90 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, spx+ ,97;dw um:hy f yvr:der.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 resiikb p1ii4cz2q .j)p u qx8:5rbstors to form a simple circuit as shown to the right 1z)q i2:qicju4ibp.5bx pkr8.
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 isw2 +h,wx9 +ptkmtyqnwwc:a s 0. ya.x2 connected to four resistors to form a simple circuit as shown to t 2w 0x9+wp+wqxast a.y :km.wth cn2,yhe 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 batteg4)bc2v/jwcmaf(rz518 ze gm ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open e/fg(w1 j48b ac mvzg2) zmrc5as 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 swi (k5 x2k-ruie1a wf;bntch and three resistors are connected as showx kkaineu2;f w1(r5b -n. 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 ideal ammeter, a switch and three resistors arelo0z)z2v)9dx :9kzktjmoxnk3l; waz of8 3+ x connected as shown. With the sw):9 zto)dokzlaz3x+0oxl jx 83 wz2 nfmk; k9vitch 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 circui 2tu win1yd;e v:s3/kq* htc8yt shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistor:/y2h s;ct kwv tdn38qe*uyi1s 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 resiste+ofnf 3famm6x5/ xq 7ance of the circuit shown to the right with res63/eq mf7f o+xf5 nxmaistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistckea;i( 6v1e mors connected in a combination ser;ka iv c(61eemies 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 identical resistorsn(t,*a k*ee 0 zli nhy(j3u+a5n.gbse connected in a combination 3n*(ty znh n(jaibae50e+l*,eu. sgk 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 ide pkk4ch/80v ttntical. Which bulb 0/t hvk 4k8ctpwill be 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 ammeter, a switch and three resistoyjn p* yus(r) rsajid60m.v o8l(0 iw2rs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ami jaov0 r .dlrp6si0*2jn(mys8w)(y uperes.
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,615xy xbk1ln g jfqv07 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 5 j7gqy x 6kv10b1nxlfreads 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, a swi(audya6fodiz(h19y u6ga )1 ;c b*gbotch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 1du o6*hcy(faz;b6ogdg) (iybaa91u2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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