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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 mel)mrtlz o -d :n y+ryn:1 xs+;gnd/or/tal resistor connected to the battery. Wh+)y;odrod1nrs :tnn-lzl :/+ y x /grmich one 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 are connected in parallel, the_________each res8;*t(y7ohd1 v(ck d5ji hzzmiistor is the samhci(j(y1dzm7dv k ;oi t8 5*hze.

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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 fi b2xgzjjmpq)n3 (7. mqlament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the p2jb xqqz7mm3g)n j.(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 with LEDs. LEDxkd 1uth cmwa8 ;q/)v1 is the acronym for which one of the following cu a1w/xh v)t q8;ck1mdhoices?

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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 gra)c*wac( -xcu 2lgd9vz.fiij 2 phite resistor has 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 off)cgiadcwvz 2 -2 *(.ilux9jc 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 the 1b :2(pkbwpu kdiameter and twice the length of I. If I has resistance R:pu21bkkw(bp , 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 mm9gdupjc 8iy qp4b8*.ajd 62faterial but has twice the diameter and half the length of wire X. If wire X hq6acd 8*9m djbup.2y gfpj 8i4as a resistance 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 resist-bntt*(e uo,3 zyut3dor has length L and radius r. This piece of material is then drawn so that izo* ( du3 yutb-nt,3tet 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 dy; g3dux.iz. 3b utnu be 5*nbimz7:x;ecides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produbi:*d3 .xnni;uu3 emzyb5;b7z.uxt gce 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 material. The length 1f7fabre6o 3xtqyr*8i(z y2 d3cd iq;and radius of each dfy* i3fb2o aec 8y6 rz1 ;d7rq3txi(qresistor 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 theub sbl 19 t*;6gxfbdw, following way: “Two resistors are b 9tf;lbg wub*xs,61dconnected 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 accompanyhtc) 5w43pl vhing circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading4hlp th cw5)3v 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 right0azdbq arqu:cs5k/.rn v( 27b r vbho6jn,0,e . The three bulbs 1, 2, and 3 - reprq0d,a.sua h0vbz(j crro/ rk 576vq2, :b nnebesented 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 currentgaqq4 gxg- r94lu2qt) in all three resistors is equal, which of the followi4 g)4 2ggqarqqlxt9-ung 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 composed of / xfvlag tmfrbf 22ul5;m7u 555 identical light bulbs and 2 flashlight cells. Whu mmt2lrl/2f55fgfu; 5vxab7ich 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 itu/b0v + b,mmxao r w7rm993gee6uh6ps NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa9m/p u36,uewv0mm et7hrg r6ox a bb+9l 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 connecto jbk5n8c:0xifey0) jed in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connecx8:bce jn)y05jko0i fted 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 cou) 4jl3s k*pq ,wc glb;iz qww);ym,7rslombs will pass through the identified resistor in 5 seconds once the circuirsy;),4l mgpc7s i zb);*ww,qwjqlk 3t 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 simple pe((wi uck6 )-3shoikcircuit have the sami3wi6kou)kh (pes- (ce resistance, which 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 curre0 g5(k;j gudli i7ex s4(nc*fant through the 6.0 Ω resistor is 1.0 A. What is the power supp idx;e4 sc07n jukai*ggf ((l5ly 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 1pq,gwx 9e*wi/ fy6 ;os pngz0a battery. Suppose R1 carries a cg iyxnw0 *wo9q ,;6f /1zpsepgurrent 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?

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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 paralle+: e6mdc6/h m bvt-yccl to a battery. Suppose R1 has 2V across it, +vc:b6-meyct 6 mhc/dR2 = 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 maximum z +hmewf4y)jhy49 ;ku value e hf+4y wmzu4h ;9k)yjof the 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 resg6xq jp bkr 1)6xk:lcy84+ mmlistance of a 60 watt lightbulb designed to operate at 120 voltxp81ljm4rkb 6)+m: yx lk cqg6s?

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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 resis xymiq wv*iy, x8*8u;btor that is dissipating 36 watts oyxq ibvi ,w88y* *u;xmf 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 inr7 o 2+fvx,gor n+u ajwj1s/6s marked "120 volt, 600 watt.” In normal use, the cu+x nf6n17, gauov +sjr/jw2orrrent 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 coul puqw19)g 5euxww zxt wf) 56i552j 8-vbrzqped NOT be produced by a circuit containing only three identical 6Ω resis1rpwbqgf-p 296 vw q8xwx5e)z)i5j5w tzue5utors?

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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 i:fko3.;qy2 xyec0w fthe following equivalent r fi;qk ef 3o2wcy0yx.:esistances 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 to3hw nbt8p 2kv0gether in different configurations. If all three resistors are used in a circuit, ho kt2h pb3w08nvw 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 r/vbsqp80 9d2tx;aqc n esistor is connected to a battery, a total power P is diss8 /tnqdxqvp ;9bs02ca ipated 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 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, are coz;h2 *e ije:rannected in parallel, the equivalent resistance of the combination is 5Ω . Which of thi:j z;e*er2h ae 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 a reta3 l9ph2drn :7 0wblesistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would takp2:rh3a wel tlb9dn 07e 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 dissipa,+buk;u7s bp2 stl/ l4lbnqpd7k2 s;cting 36 watts of pbqsbkkn l2ll;du2tp/c p4s ;sb u,+ 77ower?

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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 dra/s;(e. tj ugrfws 13 amperes of current when connected to 120 volts. If the prist;/(r.jf g euce 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 co jlq ;wjso.7nex+ ;7ssntinuously for 1 year at a rate of7s7 wq j+.;jsxnl se;o $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 li7(mey:h,:q2 u/b6r smxelcgm ghtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represen(m6leme7rc s,u:xg y2q/h:bmts 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 ad k0v v,o5t jj5gnh56nbl btdy wb2:09c3(pgq t 500 watts in a 120 V circuit. If all computerh63gdbl t0qn 5y(09 oj2gpv jvc5k5wd :bt,bn s 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 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 fo:-m2lbybng gl fk/n;6 y8gci6ur resistors to form a simple circuit as shown to the right.ny6 gyg6li n-f/g2 mk8;bb:cl
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 wa mz)u gha*+(a simple circuit as shown to the w aaz*gu+( )hmright.
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 rewnun:,4jy)sk.j f tx-sistors are connecwn j uj :ys-4n.x,tf)kted 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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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 and th 645-atudhc xmree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0m6a h-5tu4 cxd 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 7s2i1rv zrm:t/l;h (kx( pritammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet ( tisr;1zvmp(2t r/r khl:7xier 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 showcswlp -3 6 a0jvfdq gx;/o;qz0gfth 55n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resis6;fqp vot/hg dflgq0js35z 0-;wxa c 5tance, 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 resi.o s2yj3yxl +vstance of the circuit shown to the right with resistanvj2+3 l.xys yoces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ss v:(l0vuff0 chows five identical resistors connected in a combination series and parall0:lff ucv(s0vel 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 identical resistors connected in a combinax (a2v:e46j,z y yojustion series and paralles,y:(eja vy u24oxzj6l 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 u6l0fg n3 s6jvdiagram, all of the bulbs are identical. Which bulb will be the brn 6gls3u6vf0jightest?


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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 amme r*qjr j :y2nhikv(6 cv;(9xzalt5d)gter, a switch and three resistors are connected as shown. With the switch open as shown9k zrx d v;( jth6q5gaiyr(v*jc2):ln 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 and three resistors are connx6 4exzmzi v*rot6w 29ected as shown. With the switch openwvx69*t2z6 ixmez o4 r 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 amv qb9klm/1v5w(al rt; meter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram lbv t;ak w 1vqm(9r/l5the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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