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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 exists in the metal resiss4r*k qn1/xc stor connected to the battery. Which on1 s4 rksq*x/cne 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 areh)o 8j-p,azg l0a u2oi connected in parallel, the_________each resistor iugl,ao 0jo a zip-82)hs 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 thinn+nq+6iunrll ,p3 ,mb filament wire of a lightbulb causes the filament to become white hot, while th n+6,l bqmr,un3+p nile 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 lights4jv8yymt sx;- are being replaced with LEDs. LED is the acronym for which one of the fosmy yj; -x4v8tllowing 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 ff6 lmg/122p+uzjbhu graphite resistor has length L and cross-sectional area A. It is to bez2 fpml 6uuh1/bj fg2+ 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 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 materilat83ur2b xj 8al. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has res28lr8ux3 at jbistance

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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 n qge3z3nrw gum4trp8dr*us4l9 ;5o 8 twice the diameter and half the length of wire X. If wire X has a resistance of R then wnd9t smrou38 u*n4g3 rw54p rqgzl;e8ire 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 and radius r. This piece/qochh: .8d4 ka3 ukqn of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becha 3nkd.q8 uh4/:qkcoause 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 b/vp8ld87,- 5 rjy).:k tnqerfypzl lw ulb. He decides to modify the filament. How should the fil8t)j-yqwl l pd l,r87.:py n/fz5vkreament 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 of the s4y7l2 dhzcq* xame material. The length and radius of each res y7*z42 cxqdlhistor 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 f*pw8h0llbf0r t6 0v llq p/*ha 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 arrangement of fourlh/06l8pp bw*fq llvh0tf 0* r 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 accompan sv ,ya73ak; nz 4+np/cbpxso*ying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammvpcy kxz*obs,7/pn 4a;s n+a3eter 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 thrhz/5q0xg y* usa .pa4ozww 7r+a:6 cp,rs-bzt ee bulbs 1, 2, and 3 - represented as resistors in the diaza7xh:po a u0wsqr-s/tr+ 5 *6y ,zb.c4gzwapgram
- 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 curv)y/wd/hb7bz.t vug;u.,hg t rent in all three resistors is equal, which of the fydb) tvhgz ./u;buwhg7v,. t/ollowing 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 represents a simple elec c1:wpek icw8-es53yztric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs1s:z3-e i p8ycw k5ecw)
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 cons( gfn:uhv fi1k(mao0biq+., cerning the simple circuit shown where resist i bas1v.+q,k(fo mhun(0:f giors 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 series to a bakk 4b- efcfc71ttery. Bulb X is brighter than bulb Y. Ass -f7kbk e4c1cfume all circuit elements are 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 th)tn p )i 9:cof04vfof:li0yqjrough the identified resistor in 5 seconds once the circuit was closed?:fl ic fn90jopvq):)fio4 0ty


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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 ts7.a,rx+kw :.p v )cdm8 qkomrhe following simple circuit have the same resistance, whicorsqwx7cd v.m8 m kk+:).rpa ,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 circuit diagram, the zz 0 31zuemua8current through the 6.0 Ω resistor is 1.0 A. What iz03uza 8u1m zes 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 ar5mzi-z-4k ce4 n;2u /aodeafne 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 of power. What is the volik25 /o d- a u4;ec-4zanfmezntage 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 anq)n. p r(4koatxtm,u0h t2)xm dR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, atpox)mk r.h 0)q2mut,4tan(x nd 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 coiu v2setvc,01 rl is rated 1200 watts and 120 volts. What is the maximum value of the current under these condetv s,v2r01 ucitions?

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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 n72kycl; eo/j watt lightbulb designed to operate at 120 vo7yjc ;2l/noe klts?

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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 retn aux+z 4cj;9sistor that is dissipating 36 watts of ;4caxuz+9t njpower?

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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 clothesc jx st .1z1 7dqt53quduqmv8- is marked "120 volt, 600 watt.” In normal use, the current in .z3q1 ut1t-58j7ducvmxqsqd 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 c 8hy328frv tgdircuit containing only three identical 6Ωdh3fy 2g88trv 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 resistord0pl1 eqd5tx51 3petbs. Which of the following equivalent resistdx eetpl1p t d0q531b5ances CANNOT be produced using all 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 connectep) ge,ge;tv7 nj1z4vdd together in different configurations. If all three resistors are used in a circuit, how many different vtd egp4gjz; v7n ,)e1values 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 resistortmx1g0gr78)tg ddn -x is connected to a battery, a total power P is dissipated in the circuit. How much ttr xg1xtgm87dn-d g0)otal 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 R2, 15/kcdp/( jd8dp ff.2ea ulw oare connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cor(p/8125f/odekjdp.dfc law u rect?

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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 operu d;zd6f6: qtmating at 120 volts. Wha6df:qzd t6um; t 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 through a 4 ohm recu*jw-p2s y*o sistor that is dissipating 36 watts o sw-2 pc*oyuj*f 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 drawqavls(;rq ics4p* gy7oy ad:ekr50:7s 13 amperes of current when connected to 120 volts. Iv7q4l:ao *ycde ;(:i75gksrsa0yrp qf the 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 lit cor38hq- if,s/mz.a;gkc4*dl vv bacf6ntinuously fo8c,df;sf4 r-civ6bmg.a 3/akz vl* qhr 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 lightbul lxj pqif7ys+n) 0lc21b results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbuj+l1f0ix )y 7 s2pnlqclb?

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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 op1/c v si0/i9zxhk0geqa5nsu6 n50zf wns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged intohugp05vz0 sin es0n /5a6/iz 1ckqf9x 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 four resistors to fo8g4jiwt u4:-, rkfywsrm a simple circuit as shos8urwg - f4y j:wi,tk4wn 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 batteekv vq0n7dm3 xq7k2v) ry is connected to four resistors to form a simple circuit x7k)302v7 kv q mvnedqas 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, an ideal ammeter, a switch and three resistors ar 2:iw3kl a+sghe connected as shown. With the switch open as shown in the diaa s:23iklhgw +gram 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 s/7ah7uy7fubwu* w 4wneqb6 e6witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammqee6w/77h 7nbwa6w yfub*u 4u eter 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 thrk sw;t56, xmlkj bbc1/ee resistors are connected as shown. Wls 1k,w/ bk;5tm xjb6cith 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 rioch,4 px u; *:hl elad4cd q)nx1wr1 fbu1zl*)ght, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical repcbd)fhw4oc1u d,xeu;1nl x1 4) z:*arh*q llsistance 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 r1cvtd.z *bfl8tsy3 s4 esistance of the circuit shown to the right with resistances 3ztslfc* 1b4 ysd.v8t$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con i+ovwu)et+c4mex+v :nected in a combination series and parallel circuit to e iw 4ut++)movcev:x+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 conbpv,1f icf k0)nected in a combination series and park0 v)cfi 1bf,pallel 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 diagu/a5 w2u vl9u3 2jx0k)p bs8yenvp7mdram, all of the bulbs are identical. Which bulb will be the brightest? ynju 3wd8aueb2p9 05lx7 v2 sumk p/)v


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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 resisto ib47kd5yt,gprs are connectg5k,b 7typ 4ided 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammetc aud1k(v9-,x r n1icner, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp a (-cvk191n,xdrcinu 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 ideal ammetecgls;k2 md (oj+hah,8r, a switch and three resistors are connected as shown. With the switch open as shown idc(gkj lm+sh8 ,ah;o2 n 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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