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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 in8l g r ixky)flq l6p(,67j,b.ffxzv+e the metal resistor connected to the battery. Which one of the following choices best describes the direction of electr lxlb6f i, 6 )+rx7lj8fq kgfy(.e,vpzon 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________ki d/1gyap/k80 fnc(q _each resistor /i (k018ga y fkp/dcqnis 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 filak5,q6cv kcxb7*m,w 8 wbv sw6ament to bec sw6bbk m *,vq586wacxc7 wvk,ome white hot, while 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 wihypirgk ;:b*q1 gk,u0sv9vwjy *- brq 3z5wy.th LEDs. LED is the acronym for which one of the followiq1uh9w*yj;:r gy. -30sq*pkkyw, vbg 5bvrzing 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 sm ks4;nkbgu4w.g.m pbo, 2,ihas length L and cross-sectional area 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 resistin.sg i sub4ow m2b,,;k4gkm.pvity 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 p;s 2k7 yr32dl xrkv+tare made of the same material. Wire II has twice the diametl;ds kk p+r v2x7yt3r2er and twice the length of 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 diamet r1zw-zqqe -e )6wrj*qer and half the length of wire X. If wire X has a resistance of R then wire Y would have a resisr qz*qqewe j) 6-wr1z-tance 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+d; dl wcz,ku c4yoa*o85+twoe of material is then drawn so that it is a cylinder with new length 2L. What happens to udd++ o* c;5zckw,l 4woo8taythe 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 ub7drymuf r 2oa635z,Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in 2 ,y6rbdo3arzuf 75umorder 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 matev*;u 6 bl kclsimos*ig58w6rs r:.g5 rrial. The length and radius of eacruk56m bli;sv rrg8* cgis56 s:wo*.l h 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 resistor* . ozcriphgsb(1:i dvj 4pgb)v 1c:v6vqq12cs, each 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 parallel to a third resistor. This set of three resistors is connected in series to a 2vp i116cq 1vbj h4:oc qggv*idcs.z (:rv b)pfourth 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 circuq2vh86-9 pdq k r3dfyuit diagram has internal resistance 10.0 kW and the ammeter has inter2 r hkfupqy6 qd98-d3vnal 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. Ther +xvo z09 6v- .qs80vistydyf three bulbs 1, 2, and 3 - represented as vsx6tr qo9 0yzd v0s8yf -v.i+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 righ9 + cr55qnytdpj;7qbat. If the current in all three resistors is equal, whn ;tb9+y7 r5j5aqcd qpich 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 represem5/pf1jp7o ernts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cprpo/j57m f1eells. 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 stat9:5uo3qhjb p xh x;yn6ements is NOT true concerning the simple circuit shown wu3q y6n5b x9hxjho ;:phere 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 fh)qhoh/wfqd lp*rmxncz98 ; 3bv/( 4series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are)(rxwh;hhqb/pf9 d4c3zovn */ l8 fm q 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 identipeoj1 q/8+ apafied resistor in 5 seconds once the cip 1+qja/8aope rcuit 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 followihbvy4n/ww:n av.l2 gwu7y 2 9pyo:m 7mng simple circuit have the same resistance, which would dissipatw wy:mp:/w yvu42myn9.gb7honl2v 7 ae 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 cig,7 8 cs4s6hs. bhjtqhng-l4 frcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplgs6hqj,8 n lh.t- 7h4fcgs4sby 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 battery. ,a.vlq ycr(dpe+4iz /ga*(ux Suppose R1 carries a current of 2p y*.,aidv/( +lcu ( q4agxzre.0 A, R2 has a resistance of 3.0Ω, 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 resistors R1, R2 andR3 are connecte,9u.ycslw2 f rd in parallel to a battery. Suppose Rr.2 uwlcf9ys ,1 has 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 1200 watts and 120 volts. Whsh815g: cn2,7v wy xjhgs7n puat is the maximum value of the current under these condi5w187gj nh husg: 7yxv ,psn2ctions?

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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 light+b a+rx8dpf 7wbulb designed to operate at 120 v7fx pabw 8d++rolts?

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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 is dissipating yh,:yigb6y olwj :-:t36 wat oi :y6:gyhwjty:l-,b ts 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 m ehhz ,6y1(lsntxm) g(arked "120 volt, 600 watt.” In normal use, the currenls(g e( ),1xytnz6 mhht 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 fo9by .6mvyy6(owe 0f :mx1b apfllowing resistances could NOT be produced by a circuit containing only three identical 6Ω resistorspyef y w(ay m.0v1f:6bx6 bm9o?

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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 7i5tdvls3th3.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using vt7lsh3 d53itall 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 d)7urxg roi8 yf4nk92p+p:xy nifferent values can be connected together in different configuration4rnip gn yu)79o2:frkypx+8xs. If all three resistors are used in a circuit, how many different values 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 zec4wh((aqo* hz bsft7/g (q,a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical s hg( 7e(q*t z( c,4whzfbao/qresistors 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,x2g+gc 4l8qgi are connected in parallel, the equivalent resistance xgl 8+cig 4gq2of 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 a9 e4ij( ze6)gp9neef a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thate ie( g9ae6fp4z en9j) 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 resistor that is dissipating 36 waw6r / hu:v1 uzj sliwm3b)k20stts ofir1l ks3 vsw:0z2w hj/uum)b6 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 dv 3i(uhg;wiqd* 4k0yk;a3w ypraws 13 amperes of current when connected to 120 volts. If uyyighq a3;p0 wwvk4i;3 *(kdthe 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 wc +n4vn 0z.fwjould it cost to keep a 100W lightbulb lit continuousn+nf 0j 4zvcw.ly 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 li1e)a og )xshxepz(3 k6ghtbulb results in a power of 24.0 W associated with th1)ko6(3a)hpg xsez e xe bulb. Which 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 family of six owns a computer rated at 500 watr :n53c0yshrvy)k qi 3ts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere:3kshy ynq)35 r vr0ci 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,i9n0qu--ec g*1mbson+hy e x resistors to form a simple circuit as shown to the righteh c +g9u0bq*nems- y,1o-xin .
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 battu ieab(htmgxb+s+ 1 onu;-v( 8ery is connected to four resistors to form a simple circuit as shown tt(bui g+be +1oxs(;huavn-m8o 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, poxzz3 * ,y(( tycrum-an ideal ammeter, a switch and three resistors are connected as shown. With the switch open ao( , rt3y- (c*xzpmyuzs 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 ideal ammeter, a switcnlwr5t0 l(v1tp)hj33x zxze* h and three resistors are connected as shown. With the switch open as shown in the di x(jlwnl5t0z*zeht x )r3p 13vagram 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 resisy-lgt amw-,t5) 3ndl0:eoup b4vu 2r ttors are connected as shown. With the switch open as shown in the diagram the awby v 4,:-gnu)tlo3 50aurdel mtt2-pmmeter 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 right, what is the equivalent resisx 6s; :8ws9 whu*;y 0lczmgudutance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resista w;l9u du:8mgch*;xuswzy60snce 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 circuit shown to the right with hx5g f.*zf v6t resi6h5gff. zx *vtstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belq wb-0g)5(jh aza*x dgow shows five identical resistors connected in a combination series and parallel circuit to a voltagegaa 5 g)jh (qwd0z-b*x 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 resiv+4f/sw-x lspdb,q/i 0wsyl.zx8fn4 stors connected in a combination series and parallel circuit to a vol wyfns+wv8/ bqsi4-lfpdx4 0 ,lz.s/ xtage 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 buldofz*m; )) v el 4gdyoqwb(9a1bs are identical. Which bulbbo 91(y v4;*l w)a)dqgmzofde will be the 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 battpuvuhc*v p7h*.(x; ng(b 4rku ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads nh4; ((upkvhuuvg**bxp c 7r. 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 ideal5lz2*mvf3n ng ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetel 5gnnzv*3 2fmr 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 are cogq l6uub+.+lm nnected as shown. With the switch op.+gb 6+ulqulmen 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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