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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 sho6xm,wa7 ojdb1wn, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the int6d7j 1m xoa,bwerior 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_________each resg l) zjqcy.mn6 (2o (dz1tgoxe:p2xc5istor is the same. )j6z x.c(g5n2 mqoted1pzy2(:x c olg

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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 o3l a-je6xyg19d6c+ uteijuf6cg10 esf a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thisgdaj ue t19u0s c1fe63iyc e+j- 6l6gx 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 ymzii4 n23yhb)l4 j)lwith LEDs. LED is the acronym for which one ib)m)yl4y jl4 z3i 2hnof 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 and cross-section1d4np/s cs6 qn v.v-)tkaso2ual area A. It isosn6uv4qdvps1 2sna)- k. c/t 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 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 material. Wire II has twice thcy/9 t5 tdxa/ ro)8uuxe diameter and twictc)5 rauy x9 8ot/dx/ue 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 diamet4 q0huvuc(bnrn v5)5v er and half the length of wire X. If wire X has a resistance of R then wire () cubh05qnuv rvvn5 4Y 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 vgb*5u (pomaz.b -( fvhas length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because oa *vzb-vbo.5mgpu(f( f 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 bulbh lp1oxo3x+vt6f0sap4 o fc(l,f ; lk9. He decides to modify the filament. How should the filament of a lightbulb be modified in +oa; 1pvhk fol4of0p,sl xlf9ctx(36order 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 c:ws9s.c hg 2fthe same material. The length and radius of each resi:9gsc h.2sfwc stor 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 battery in 9ms0m7 8wz9 n5 *snaivypq1l6/ utxar the following way: “9 isasm 17 znav9p68wtx mu5/rl0 qny*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 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 d+7ip/i8oucosf. e g. yzf y3(t- +pu bav1rfy/iagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter 3.bgzr oy1.+ptvfa+u/yeif/-iu( fsocpy78 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 compt( ymksj-tb8:ag 4dk6ound circuit shown to the right. The three bulbs 1, 2, and 3 - representedak-(ms6bk 48:gjd ytt 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 right. If the current in all txu;sfmt( *klw7/e,2d hb h,imgp9zmc u ;,rb8 hree resistors is equal, which of the following statements must be trbildz7r8us*m;h ,,k / mb cw(m9xgh;p2ut e,f ue?


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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 si 4f 0+bux8rqpp a/b2hample electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs8 q/4bpp0rhx baa +u2f)
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 stn9w: th ;w1v1o5 lmwxtatements is NOT true concerning the simple circuit shown w tw o5;ml1wnxt9w1h: vhere 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 serees ktf*h3huf6x;+ux/7y j+ ties to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are x7yxeth *+fse;h6 u t+f3u j/kideal. 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 tck4fl+nt) frv vm r.8(tjw (cmnn5t4)hrough the identified resistor in 5 seconds once the circuit was clot crjlvv( 48knmt)+4c mf .r(5tn wn)fsed?


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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 0dl ,*9t ;72c mucpd-khut usr the following simple circuit have the same resistance, which would dissipate the greatest pos ctd*rhlkpt70uc9 2,u m;-ud wer?


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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 Ωvz):hpinj +us4cs t,s w *m1jx8ypkb+d-t 7n1 resistor is 1.0 A. What is the power suppndtn4j xjmspy-+t h1z:w71 v8*csui k sb ,+)ply 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. g 6 hw4p8tv*8vrja5zz i2m5b kSuppose R1 carries a current of 2.0 Av6wkmtb h4g *z5p j28a5rziv8 , 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 connected in parallel to axmumtwahb 5 a:te69 v/ ip*4.n battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the5a*h /.: bwvuetm64 namx tpi9 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 coi /+k g,3xhmnxle)ssv 2l is rated 1200 watts and 120 volts. What is the maximum value of tnx2)gs +/l,m3xsek vhhe 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 light)nu:fysr* hot: m4e s az( uea62o*ji:bulb designed to operate at 120 vo:6hrt4f (s: mee *j)ayiao uz:2 usn*olts?

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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 ii 4 y:p+ojz/ ot8 i.jb c,wumrpf-o1:us dissipating 36 watts of p,+uzrf4t.: p w ojpyi/io umcbjo81 -:ower?

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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 eajbz-8 j 9; o+bxl;:pwwf 4lhwatt.” In normal use, the current in l ol-jhx w;f pw:a8e+;9b 4bzjit 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 resistanf-9 b8sbtc ,zwces could NOT be produced by a circuit containing only three iwzc-b tb,8f9sdentical 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 followi + q(fq0-4f ltzc6wsxdng equivalent resistances CANNOT be produced using all three resistors? q4qd6tfl-xsf(c+0w z

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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 b m2q112xrbqzo(d qc 0fe connected together in different configurations. If (x0 b c2q21qdmofqz r1all 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 a battery, a total powertclwmn2z3 )*,ok9 m.yr*j thl 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 battlmyjt2kwzlc*9 *on rm , t.3)hery 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,a1mt c2m/4ppp1p lna9vu*zh wnm:0 7r are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct?ha 1zutnl 2 1p0ampw4np*r9:c mp/7 mv

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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 resist*7wg6o . ajxiwance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water*jw7 wg6oi .xa 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 gtzjgv*4b dz jf,1 o*,a 4 ohm resistor that is dissipating 36 watts of powev4,tgj**jbz d 1oz gf,r?

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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 ampao(w d::*eerdci(i u -eres of current when connected to 120 volts. If the price of electric-ered(wuc:*io( d ai: ity 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 wou q+ ag:xpep61ild it cost to keep a 100W lightbulb lit continuously for 1 year gxi6a1 :qpep+ 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 curres- aa1y*l*pxw nt of 4.00 A through a lightbulb results in a power of 24.x1 py*-a* sawl0 W associated with the 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 sjixei- v9c fq.)8fkx*ix 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 sae*i9- j8ckix )qx.ff vmetime?

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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 circuit 1c oj,*d -3uliznpr+z )ge0 qeas sgcelqz +1i0n3u* d- j oe,rzp)hown 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 co39aw;dc3hse gugmn/;nnected to four resistors to form a simple circuit as shown t3c;3;whum/dgage9sn o 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(m) he: 1. 7gu (ncvvfwze;wvi 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.v (vu; vwgce(1:f7ne zw)him.
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, aoxf4x6 vta/7h n 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 amp4xvt xaoh /f67eres.
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 resip5xd/e*ivmy1 stors are connected as shown. With the switch open as shown in the diagram the ammeter15eyxpmdvi */ 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 resisa)k tfcwey y7gn55+l)tance? Assume that all wires are ideal, tc)k gl75+ t ay)e5fynwhe battery has no 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 circuit shown mobt3tc 16. ieya z*o6 to the right with resista a3oo1*by66cettim. znces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ie)1gabph/ : qw2vcz 5lk,x;bsn a combination series and parallel circuit to a voltage source. lwx h,e) 1gq:/vzba; kcp2 5bs
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 cojf dj t8q- a.-/up/byhnnected in a combination series and parall/fuhd/yp-jq8 a -tj.b el 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 circui o-ecsz; cf 6iizm:oc5t 5 utd;.3ovr(t diagram, all of the bulbs are identical. Which bulb will be the brightest? iov; 6mtze.5uoc- zc3:( 5;tird fosc


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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 hun1: 8:lrr 9aczme ,oinj1(k, a switch and three resistors are connected as shown. With the switch open as shown in the d,e:ro n1j: 9mnkcz1u (r8ih aliagram 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,e4n wde1v zg39 a switch and three resistors are connect1g4 v3wnedz 9eed 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 ths*0/s 8rkarn kree resistors are connected as shown. With the switch open as shown in thesks0 kn8 a*rr/ diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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