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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 resis8si(o7b rf .ketor connected to the battery. Which one of the following choices best describes the dirorkei7f8s( b. ection 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 connex()vdgu e1n/v2 mdg,tcted in parallel, the_________each resisd/txn,mggu)d (v 2v1 etor is 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 casq6 b(;ex+wcrp :njl8uses the filament to become white hot, while the larger wires connected to the lightrpswe 6ljc(n8 +:x; qbbulb 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 tq,gd6bpw:9 t being replaced with LEDs. LED is the acronym for which on9t t qgbp:,d6we 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 ant;r3+x ojs.tfb +43 at uoabk4d cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the o3ba.ut +fx3kotsb4j;+ta r4new 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 uwko97-ehhg48pa 5io e 6 )hrematerial. Wire II has twice the diameter and twice the length wrp7 ega -46h9i) h8ukhooee5of 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 diam0+y (mzvwf b. 7:wkpgqeter and half the length of wire X. If wire X has a gp 0:bmzqvw7(.kf +ywresistance 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 and dxzm nk*oy( y3+d /sn0radius r. This piece of material is then drawn so that it is a cylinder with new length 2L.xn(0km*/ d nydz+yso3 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 7/li etg4fv u0:c xjq2bulb. He decides to modify the filament. How should the filament of a lightbulb be modifiqf 740vie:jgtlx cu2/ed 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 same materia w+l :kshh4lf/y(*tl il. The length and radius of each resistor hf lki*thlws(l/+ :4yis:
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 resistance7mtuv+ 2*iang05yzs */jp g eh R, are connected to a battery in the following way: “Two resistors are connected in series. This combinatjg* atv yz2ihm0 /+7nu5ep*sg ion 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 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 diag lbz6/w7faz-8 hm+lgmram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readin h zl76-a w8mlbgf+/mzg 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 trkmrv+s gb6:. cl8rq(e ;qk8bulbs 1, 2, a(r 6s88rqqkv ;:ctlm+gkb r. end 3 - 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 electrical circuit at the righ:8odjh *qw3 nj g-y8ibup-m:pt. If the current in all three resistors is equal, which of the following statements mustjw-dbnpphgy3* -8 q mu8:j:io 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 coovvdaitephmk6 -:18v do002 *ltg-hcmposed of 5 i-do 0c06e 2vg :tv1hvt- l *dm8khapiodentical 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 NOv/+em.6trd w+ml*qxi,, h oxt T true concerning the simple circuit shown where resistorr.l,,t*hvix6 moem+d w xq+t/s 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 toh7)qg alq9s 6c a battery. Bulb X is brighter than bulb Y. Assume allsq 6gh9aqlc)7 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 through the identified resistor inetil cp8l4wf+6qqly i(e.:u ( 5 seconds once the circuit was u eqll pyc:i. t8(q6lie 4+f(wclosed?


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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 s/ska15nun fl)r l,kz*imple circuit have the same resistance, which would dissipate the greatest zkl *n 1,5) sulrfk/napower?


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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 current thr c,1t;16uz; vbvbpka g-pb)rrnb9e q2ough the 6.0 Ω resistor is 1.0 A. Whapbtzabv1 ,- 6ue k;crg 2q;r bn1)9bvpt is 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, aakzj :1z h8.f)n:sca 924n iqdw3vrzq nd R3 are 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 voltage across R3?1 dinaqsh.zjrvz8acq:9 n4 )kfz:32w

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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 resi dk)kn8uz7 -pmstors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W nkpmz)7kdu8-. 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. *+s q:p dlg 1rv-nf2sg What is the maximum value of the curs+-2pv 1*g f nlsqdg:rrent 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 a/kh.ny0hi y-lt 120 volts?h.iy0 -/hyl nk

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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 resim/q:9s,pizooke v 4 pc+o,y.b stor that is dissipating 36 wattsc /:p, e4o,ozvbosim. y kq9p+ 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 used to press clothes is marked 1*k m-vpl g6. v 78rxvidnkdz+"120 volt, 600 watt.” In normzmd1n6 vd kk rv8i-l*xv7+. pgal 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 a 5)9twr3/s,ncs, afqu xcv2 b pcircuit containing onl9pw t xrbu/ ,n,v)cq32asf5scy three identical 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 the6- 4,vyuotmrcyj u (3ree 1.0 Ω resistors. Which of the following equivalent mctvy yuuo ,-j4 3e6(rresistances 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 connected.-nt3 e ydmax9 i:b8wc;i zifwaf50 8k together in different configurations. If all three resistors are used in a circuit, how many different values of total re:b;aewnt8 y0fkx.w 3da -mizf95 cii8sistance 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 connected7jmhwy ,l/:jv, sru0 w to a battery, 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 battery iyhmw7vlj0s,j, u :w r/s 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, are connected in parah.jy2-7n fi qxllel, the equivalent resis-xh jyn2 .qif7tance of 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 i+4n7p s rt;.ft)y x) jla/9 waoi7bvydt has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of +xo4rwv adty f; aiy)j7p79).bt/nsl 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 ohz c4zkvw, (jc7m resistor that is dissipating 36 watts of povwzz7c j(4 ck,wer?

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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 conneci24+,a2 7nzo nx snvdhted to 120 volts. If the price of electricn7h z+x d2av n4isno,2ity 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+k 5poe0-fzs xwq9f/ zo1h pk. it cost to keep a 100W lightbulb lit continuously for 1 year atphf/1x0+ qzpkw5. ez k9f-o so 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 inyd3jq4d8 kgww zqt-3 : a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the l-dq zdwt k4yq:3j8w3gightbulb?

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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 szr .ue .xnp1ng 354slkix owns a computer rated at 500 watts in a 120 V circuit. If all computers are pluggek.3p g.l1uznex n5rs 4d into 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 c* k p h x93qlnokj*-rljfs457nonnected to four resistors to form a simple circuit as shown to tqoj4rn *plh3 kf x57*jnkl s-9he 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 resist8cydac7 z ,8ynvlfonk( b8:i 9ors to form a simple circuit as shownn ofiv 8b8,y9 d78kzc:al y(nc 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 ig/6rko zfc 672x4v mn80ckfjcdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in/ 8 6vo76jzc0m 2gxknccf 4fkr 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 i gw)s z1hr4a4wdeal ammeter, a switch and three resistors are connected as shown. With the switchwrg h4za1)ws4 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 swiv 2r qgx7n,8lctch and three resistors are connected as shown. nq7c 8rxv2g, lWith 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 circuitozro nvvninn* -5 ogbcv1z87ud +790v shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has ndni9o0z-vnbn +7 cv* nzogr58vouv 17 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 cir(jn ebw: 50crahi.uf/cuit shown to the right with resistanfu e. icha/n w05jr(:bces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ngsq; :.qwrh, shows five identical resistors connected in a combination series and parallel circuit to a voltage sourcn q,w;sh:r.gqe.
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 in a combinati1 vt w*5eovlr n+ci71;t5oxpwon series and vri 5e*lxnc 1oowp+5w;v1tt7parallel 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 bkpd huc8uj m:xq/p 4gm hrl-m,3+ja+)ulbs are identical. Which bulb will be the brightkjxmm-r 3uqc/g: )u had,hpl+jm p4 +8est?


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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 t0y3sulaz8 xrx3 u*ux;k i,.y bhree resistors are connected as shown. With the switchsz k* 0;l8ubx3yy x3 iaxuur., 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 ammeter, a switch andj3/l, sr8g/wzrr u, *qo7nrim three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads j nrso/g3r7 * zr,w lquim/,r82.0 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 jf(i.bq50. qw f r/ 7fkpfksf(switch and three resistors are connected as shown. / i5.(.rfb(pjfqsfqk7 k0 fwfWith 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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    总分:50分 及格:30分 时间:不限时
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