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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 exist2du/ h9 x)jas1lb7ol is in the metal resistor connected tlijoxl9bs12 h7ud)a/o 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 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_________ea/fq97 j+:qdb pcrb(iuch resistor i /p+j:q9b7qd i(c urbfs 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 causesq i+ evs6-oj)uyxngu-pf6-xh cg4/ m2 the filament to become white hot, while the larger wires connected to the lightbulb6-j)4pcivnes2y + gfgo/6 xum -qx u-h 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 utdps5z66j 3 op/yc bg71kis7 are being replaced with LEDs. LED is the acronym for which one 5kg/63o6 js7py7cpzt d bs1iuof 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-sectional area Aiqwxzd7s tlra; y.94k8.qp . w. 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 owakw8yt r. lp;.4i7x szq .dq9ld 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 I5kbq1qcf pvt owp7;. o9c 5*usI are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has sc5.w 1;u pctqkoofpv7*b59 qresistance

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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 diamg /0l4f( u16cfyve/j4 yzwqageter and half the length of wire X. If wire X has a resistance of R thevayl6gfq /1u0yegzj wcf /(44 n 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 le. 7 bvgcr9o4i.2q ltzhngth L and radius r. This piece of material is then dr9cotb.q. h27irzv4 lgawn 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 bu gb:ddqa+ze01lb. He decides to modify the filament. How should the filament of a lightbul a10dbqz g+de:b 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 x*sm bem ;2ez+made of the same material. The length and +2eemxz ;sb *mradius 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 d6 pg k bc-sp)ioc3i 8ex6 35cc(mtyw(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 resistor.” What is the equivalent resistance of this arrai)g(c65w ck c 8bx3pc mi(6p-yed tso3ngement 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 acz*y mr39f3h*vg x welh-c++k xcompanying 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 voltmeter reading yghz3 k9mc xef*+ +*lh-vrxw3is 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 sho7s x;9qfgz4us r3r o:jlf 54rxwn to the right. The three bulbs 1, 2, and 3 xqsu4;r s:g5xrfozlf3j7r94 - represented 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 electr)t ktvefo36/ kical circuit at the right. If the current in all three k vtte/)kf63oresistors is equal, which 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 repredqz3,b hwc2n 3sents a simple electric circuit composed of 5 identi3hn wz3 q,d2bccal light 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 Nvz sa5.r+j-z-5t s ogjOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resvogsrasj z5+.z- - jt5istances?


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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 seri gu ye1jia)-2jes 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 aj)uyj ei1-g 2battery, 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 1/,wtmpj20lzct6jne a :xvw/sa2rl . in 5 seconds once the anw0r/z1 t,cp2w j6xa . j2slmv:l/te 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 circuit have theri-y;yki3qgwb;.xnmi05ns 8 rs p o7: same resistance, which would dissipate the r g:k ;s oynibw-m7y ;.iqp 38sr0in5xgreatest 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 c jq1q cm58vnk:ircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What 1njqm v:c85k qis 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 ink6bwqg0 z3 kkns au8h(w+ )k9l 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 of powe 8)awbk sk +kuzhq0nl96gw 3k(r. 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 conn/wro . am-(nj0ncpu9je dd0y9ected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3-d. 0n0num(j/ 9aewrpo d9y cj 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 j9:1ihr4k: - yvoqz xyis the maximum value of the current under these conditionq 1ix9zh 4-k:vjy:ryos?

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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 lig;du09 vq1 wcd+efmqe:htbulb designed to operate at 120 volts?: vqef;wc1d e9ud+ qm0

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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 w82m okl-cavqt2q0v1ruf /*:-bg koto45cyi a 4 ohm resistor that is dissipating 36 watts of powmf 21qbkk8au/-tt*q 0ovc :iyw orcg4ol 2v-5er?

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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 clothlgcy3uhv v3 96es is marked "120 volt, 600 watt.” Inug6 v9h3cly3v normal use, the 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 produced by 5ix0z8b66:xf rxm 3n answ 2j:nch1oq a circuit containing only three identicar5mjwx2x 6 6inc0nbhz8s1n : f:3xqoal 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 resistors. Which of the following equivale,gw17g le+oygwv5- pq( tvl ,mnt resistances CANNOT be produced using all three 5g1vyw, +w7ogl me,lqpgt -(vresistors?

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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 nveqci-,,jdn2 lov 7 )lll( 0wtogether in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced?0q2cnl(n j,e-d,i l)lwo 7vvl

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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 buvae00d o)(s6upfebzi350rmattery, 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 batt6ub (0z30 ad0mp5e uiof)vrs eery 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 resistancxu od8ylt0gkjy(:);m1p er,ee R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about ,d) 8y1x(omek0rtg lj;e: pyuthe 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 resistawusn sze /lzv p:)i7mrs.,e8, nce of 12Ω when operating at 120 volts. What is the minimum amount on,vs)ip/7,e mrs l e. szz:u8wf 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 ot-dqc ede 49-xhm resistor that is dissipating 36 watts of poxc-9d4qe e -tdwer?

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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 drawv5yk 9ps/p-r ph) l:pys 13 amperes of current when connected to 120 volts. If the price of r:ylvp- pyp/9p)5sk h 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 kee uo4n0u m;ef;up a 100W lightbulb lit continuously nueou4 mf ;u0;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 juk pvphw b6)(5lxy.( power of 24.0 W associated with the bulb. Which onp( lkx )wb.jyp 6uvh(5e 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 o .y ;ni1vckhu0hq; k,6h*qjwa family of six owns 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, what is the maximum number of the computers ck q6j h.yhq* ,0 nc1uwoh;;kivan 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 ret;rc 41*59g b d;jygce0jq gpisistors to form a simple circuit as shown to g1;b*y94 eid50 ;jq ptc cgjgrthe 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 fooqayex 6 fo/fm)7-o)trm a simple circuit as shown 7of6 e-am/ofxqy )ot)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 ideal ammeter, a qh gll5caxttk,-:o6;switch and three resistors are connected ahka:56;cq ,tl ltxgo- s 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 id6yfw7+3e p0ltpq- .yn)qphfope,1xa eal ammeter, a switch and three resistors are connected as shown. With the swiwetyq+f.ylphxo7,p13ae0 q nf ) pp6-tch 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 reser 0kid ow/v-8istors are connected as shdo8w ker0vi- /own. 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 shown to the rig xt48 vj0wezg.ht, what is the equivalent resistance? Assume that x.e 4wj gt8zv0all 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+t ja-j :hq .q7a4kayf the circuit shown to the right with resistances -yh+.j4 f7aqaqjat:k $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a combinzy f,t(;f *1kg2bv :jwlm9uvq ation series and parallel c:2(;mwq9 kf fzltjb*vy , vgu1ircuit 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 connecd4y/n p; 21kir12trdrg c9 eplted in a combination series and parallel circuit to a vol19l 2e2t ky rcndd;p r41/ripgtage 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. Whx ls bor3w/y7r2 2non3+xio0j ich bulb will be the brightest? 2 33+srbxnxjorw ooyi/7l0 n2


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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 resihyp1:lpda g(e )n8b 4ystors are connected as shown. )1ynhl d8p: 4bpya( geWith 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 z2/gqwemem0-3k9nj f , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open asf 0 ewkmz-m qnj329eg/ 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, a pz:3yo ,dw8vgswitch and three resistors are connected as shown. With the switch open a ,8wvdogp3z:ys 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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