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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 metw :o+qrkwk* s9nnr hcx;na44,al resistor connected to the battery. Which one of the following choices best describes the direction of9 qkrc nhrw+4a;*xonsk,wn4 : 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, the9swhvskt;g4vg . yn1,_________each resistor is19ss yhv4tvg , k.gwn; 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 causes the filatqa*hc;)u62r /lbr nc ment to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens beqh br;atlcru6*2 / nc)cause

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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 bei850fbp6/pl0rox dxw hq*bcr 5fw-+mun2d 6q sng replaced with LEDs. LED is the acronym for which one of the following choi -r5d0xmpcl6o6b/w+dh0sx2fr 8w qu pbf 5nq*ces?

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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 areaqj3bl5 v-u q2p A. 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 old resistivity of the cylindriv 23jl5 qqbu-pcal 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 maj e8 xo/zzb7xq,,nrb2terial. Wire II has twice the diameter and twice the length of I. If I has resistazx br j2,8qe/,n xo7bznce 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 hal+biyv9 ou/(3ihbz yf;8zs6a sf the length of wire X. If wire X has a resibys8bsua i+ohf9z3yz;i 6 /(v stance 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 radius r. This piec kfea1xbe2p8 7e of material is then b87k2feexap1 drawn 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 bulb. He de(rxn)+7h lgg np8i4gecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb ni)n4 ( 7 +ge8phrxlggproduce 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 i-+(rhxgg1 h z*pn3zimaterial. The length and radius of each resistor i3ig ri-n1*x hz( gph+zs:
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, eacd7esq1 e1qm4den +ce iqe,i p8*c 8b2kh of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in pa eic m be+4*sdn,qpc71q qek1ie82e8drallel 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 acv y:wt - lecz9ojc8-b5tj*u9scompanying 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 is most nearl9c8-5eutj vz-w:y9b o*ct j sly:


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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 bulbs 1, 2 we8lu) -oonz +v98btx, and 3 - represobutw 8l- e+9ov 8nx)zented 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 circuo2(+ fuyme- luit at the right. If the current in all three resistors is (+mouue l-2yfequal, 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 represents a simple electric circuit composepc 2+nhfl8icwy6h *f-d of 5 identical lighti fpw8l6 ncfyc-h2*h+ 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 oypae nxe,*m r5b0si s)*,(zv statements is NOT true concerning the simple circuit shown where resiro,5en0)v*xi ,m*pazs s yb(estors 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 batte;iynm9 y8s ok;ry. 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 battery, which one of the following choicyy8s;omik n; 9es 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 o a1h .1iizuqca j;mov4qjm.k ,-7d h.pass through the identified resistor in 5 seconds once th-,.q1. aq v ojoc7d;ia.1 4u ihhjzmkme 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 sim h12 y22k6*uom 1)nxbcqbbqewple circuit have the same resistance, whichq6 bwe2ukxcm1) 2bb*1nh2q oy 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 current through the 6.0 Ω q : iftv0.6 +tshwa4jv resistor is 1.0 A. What is0vi:q 4 t.+hajvwt f6s 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, a xhkp,;io:v (qnd R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.,kxq(i:p h;vo 0Ω, and R3 dissipates 6.0 W of 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 r*k nqb987eerzesistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 * qe rzn7bk8e9= 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 1200 watts and 120 volts. What is the maew m(0+ sj3ya8x7p t,*pizh ipximum value of the curr8wz 3yx* iti,asj +pem70h(ppent 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 120swtx96x x4 fc0 vo40t 6x9xwcsxf lts?

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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 xca6xjb+:/1pczp b;qwt j/ ; sis dissipating 36 wa 1pa q+zjxs6;c ;px :wjtb/cb/tts 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 "120 volt, 600 wattc9:t(au /9cq uaf4x yb.” In normal use, t9 (qc ycuu4/ :bfta9axhe 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 tarj/ w-:bl*h2uklz- produced by a circuit containing only three identku-r*a/lz: 2th lw-bjical 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 equinx *(xs5jna;9lp66il xqw s6f5hdi( eojx14b valent resistances CANNOT; *iqljai6djef x 5 4sob6(sh5nnxx61p(l wx9 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 resistorsruq5(dw2 p;yo of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of tota2po5qwy;d ru(l 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 resinm*tsf+.7v po8 k; vcpstor is connected to a battery, a total power P is dissipated in the circuit. How much total power is p.vm vo*c tskpf7+; n8dissipated 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 k;2ws*: dpqkg, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistsgw dp:k2q;* kances 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 designe vb la6w2tv7we+cug-f 2 n6be*d such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.456cwevt-bnf +uv w6b*l27e ag2 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 resist fq+1pdfvb;g/wv2 5 dror that is dissipating 36 watts of power?+ b2dprd g 1;vw/5fqfv

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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 120 0f4daax+i(es14er)mbuf9 qk volts. If the price of electricity ia xu()b1e+skfa 9eiqd4 mfr40 s $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 10dft2k uqk 4c.xzp;-w30W lightbulb lit continuous 3 qf4c-kp2u xz;w.dktly 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 lightbu/pvqv-5l-rb*wz .e t hlb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance ofhez5vwl p /. -qbvr-*t 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 six7 5os.qibo dmxk 8o41k owns a computer rated at 500 watts in a 120 V circuit. If all computers are plug .m qdo1o4boksi x7k85ged 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 conn+wvim)axj2 )cgh td .,ected to four resistors to form a simple circuit as shownjm2+d ixv)t)hg wac, . 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 battery is connected to four resistors to form a simple cnnr nb )yts+ m/v;7s3sircuit as shown to thenssn /3;v)b7nts +ym r 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:kwfenh: 1us5 three resistors are connected as shown. With the switch open as shown in the diagram the ammeter f:n wu 1shek:5reads 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 switch and1 csgnb4s cq6wh+)6np three resistors are connected as shown. With)n1w 64bcscng+hspq 6 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 swh)4g wq uavj .e.+*ifaitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ah+g wv*..j ) aa4iqfeumperes.
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 equivalentavgfp ,7z -r cbf56lf4 resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resista-a4 frf7 65zpblcfvg,nce 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 resistanchda9r (kx dl37e of the circuit shown to the right with resd (7dxa hr3l9kistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combsztnaa sdvd.av 04xavv/ 4*.-ination series a0 v-avvxa aad.n /sv4t* .dz4snd 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 identu*fwi0(kfjn31j lnj eqf) 9x;ical resistors connected in a combination seriesw fq)1jl0e j kfnj9*u i3(fn;x 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 nn*jj;b. ozai4xki0 2ii:jd * bulbs are identical. Which bulb will be thj k2:ia j4nz ibj0n.id*xi* o;e 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, aoxp; sjjt .6z8n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showxo6jzt8s p j;.n 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 ideb0nqe i- u7fu1vvx5(fal ammeter, a switch and three resistors are connu7 1ffev( qv 5u-x0nibected as shown. 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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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 resis qzxeoc82c+0b tors are connected 0qcb82 zoecx+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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