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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 ep-5ne.afgxs v8o-tm;6 lu7ip6bb/g8.t pk t hxists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flo66-5b ugh/fpibspn l.e o 8tx.ttg7pa v8;-kmw 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 ww45rj83v8h70by rtxk, endz connected in parallel, the_________each resistor is the s4jdye5,nwbvt7z80k r 8wr3xhame.

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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 causes the fq,e djt0hdh-7 y3 7fzxilament to become white hot, whil7hqf y7 h jzeddt03x-,e 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 LEn b2r*b /bq/cb5,hjgl7yq lr2Ds. LED is the acronym for which one of the fo bbr5nh7yb j*rqcgb/2 l,2 q/lllowing 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 b44kdcnw1b ) qlength L and cross-sectional area A. It is to be placed into a circuit, but it first nk qbcwdb)41 4must 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 theq kjv /lkj+:gpx5ce+* same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resisec5jjl xv *q+k/pkg:+tance

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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 lqzd d3i89x p)r m/u)pthe diameter and half the length of wire X. If wire X has a resistance of R then wire Y would h ) u)3mpdldr8pi/x9zqave 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 and radiusjq *y.w9uw3ka r. This piece of material is then drawn so that it is a cylinder with new length 2L. wj9*3akuywq .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 Ek5q.(j i/km vtdison 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 jqv(tm 5ik./kmake 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 of the same materk-hp)b.koe( lkx2vv(gn a 7;lial. The length and radiupk(2 )hl(kve - l.aoxn7vg b;ks 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 ba(a/ zb0mphis uq63+mjttery 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 equ0 qju/hmsi6m+( 3zpabivalent 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 rte p -0*hcz) bs*wew:vesistance 10.0 kW and the ammeter has sweh bvzp*e*t- :0c)winternal resistance 25.0 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 right. The three x;8) pfvchmbzyxrid m 2 (w+-3bulbs 1, 2, and 3 - represented as resistox3 xcyw hpimd -;b(r +)vmzf82rs 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 at the right. If the current i,)cs0b.zmb f qn all three resistors is equal, which of the following sm.),bfscq0 b ztatements 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 re -mebx0 51f( wkmv9 len.loo,kpresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which 5fo l l vw1kn,x.0(-9kbomemebulb (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 true concerning the simple circ-hq9vdlaxtrg)p; pih :-(,yo uit shown whqop)t9h, -h:p(xl ird g-yv ;aere 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 connected in s l q:+r5u( ua5yxq) kegv9l,lheries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ie5 uqllv+,x9l)hky(: agru 5qf 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 pas2d(j7c ,zdvzh8tei.s s through the identified resistor in 5 seconds once the cir8zte7i sdj.h,d 2v(zc cuit 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 circuj +i mw0qi a:rvwz hi3.*bye.5it have the same resistance,+iib5va. wy 0r *:hiw jqm.ez3 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 diagram, the curr)kxq j .m6v 1p;4bc:mjq c,iflz;l9 wsent through the 6.0 Ω resistor is 1.0 A. What is the power s c1qz v64pm sbjxk;)wlfc ,9.ijqm ;l:upply 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 batv.od0l spq+c+tery. Suppose R1 carries 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 .0soc+ +pdlqv?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three differe:g3ge*i)8(z r/mifr 9f-53ybryc ke5qg pl kunt resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 b g5qkp/ef gfrz833 r liye m:ku*-5y9gic()rhas 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;e1xr -aw1n.dzx ;gdjv0c8 m o 1200 watts and 120 volts. What is the maximum value odndxa e.; mr0j1gcv8 o;xwz1-f the 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 of a 60 watt lightbulb designed to operate at 14 *knyi h yqd)/c5;zkt20 volts?zhk)yt ;dciqy4n * 5k/

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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 a5z.e kl 3 iy4(do9qko4 ohm resistor that is dissipating 36 watts of powe 93lkikodqze4a oy(. 5r?

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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 mark6-usn akyc 1k7ed "120 volt, 600 watt.” In normal use, the current in it i 1y6k7a nc-kuss

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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 foll67qtn oa6-qrxowing resistances could NOT be produced by a circuit containing only three identical 6Ω rqa- 7xton6q6 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 threeh,4/ kb,5br*k+nnmucr 4jrtt 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resisn b/urk jr4m+rbn,4k* ht5c,ttors?

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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 ie6*df( nv4 smpn different configurations. If all three resistors are used in a circuit, how many different vve*md 6s4(npfalues 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 battery, a total power sa6ydcnl 7wl29 ldv -lniu4;9P is dissipated in ;dlua-7yd29sv w6c9lin n ll4the 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 R1 and gdd; qhigh*;m5uqp4)R2, are connected in parallel, the equivalent resistance ofhq idg4) dqmguhp* ;5; 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 it has a r j3 fjg)o/fchf cl5; rk/q-nf*esistance of 12Ω when operating at 120 vf kjfg/f jq/co*)3l5f-; crnholts. 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 thro0jkyz*nf7 )da.+o w sough a 4 ohm resistor that is dissipating 36 watt0n*koa. 7)o fs+ywjdzs 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 draws8on -zy4w)yj cn :fzi+ 13 amperes of current when connected to 120 volts. If the price of elec fn-j48c:y i+)yo znzwtricity 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 lit continuo0; p9vnh62y ln5mz p hu-(zqlausly for 1 year atzlv ph5h;l2 pnm0 qn-(9uaz6 y 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 resul bix63i18a,3yg l/ i0mllpa mxts in a power of 24.0 W associated with the bulb. Whicapay ,31ml0b6i8ii3 lmxl g/xh 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 fof xfy;+krl 9:0 u,ljoamily 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 can be operating at the sametimly9folx:;k0or + ,jfue?

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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 form a simple circui2na s-wk(n c* g;5scogrjf h72t as shown to the rig(sh2ra j owngn kf*72sg cc5-;ht.
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 c2an,glm8 mp *bircuit as shown to the8a mm,gpb*l2n 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 i 3:e6ahkd(zqqdeal ammeter, a switch and three resistors are connected(qdzh kqe a63: 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 batteryclz sa/vqqm6i*t6qh a- j/m07)h,vm y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.ih az/am6m7q-hsl,)qmcq*vvty0 / 6 j
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 anu ix *0muxx60wd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0xw0 uxmx 0ui6* 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 equivalent resisf*t0o b-yqs0a tance? Assume that all wires are ideal, the battery has no internal resistance, and all thyfqso0a-t b0*ree 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 resi;gpjt/s6 jupcqvthq1q / 0+:wstance of the circuit shown to the right with resistances+tqcwq1: /6jpj /g;vs0t puhq $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connect gqy1 yu)l y: sk6e ;g9af5bzt6nyyv2 0l34bbhed in a combination syyay egg:h0;1busyy5t b3kfq z24 l9l vn6)6b eries 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 shoyb g0e +w.1zqidn,v9 i ;hwqc/ws five identical resistors connected in a combination series and paralle;+9ci, .q z1 idwy0/bqgwnveh l 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 oksis xu:fc r z0l)6mo9r2*f(, all of the bulbs are identical. Which bulb will be the briu:z(fissmr6)o x*l 0k2cr9fo ghtest?


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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,)sh bu66ra*f gkgkd6 , a switch and three resistors are connected as shown. With the switch open as shown in the diagram th ghrda6) 6 bkkfg,u*s6e 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 three resis i/7u e,ny)cprtors are connected as shown. With the switch open as shown in the diagram the ammetec / uryi)n7,per 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 switch and three resistors arzdrxj i726)4qarwoz(va+ k a70f) rode connej0 )2rzdx 7q4wo7 +)k6oi fa rra(avzdcted as shown. 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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