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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 ml7(mb5dm; t ntetal 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 interior ombd 7t;l(ntm5 f 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_____w79v)go,pjf h/j-k hz ____each resistor ip gf,hk o/-hv 7jw)z9js 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*j(zsn(ltff;e q:g n) the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain muchs( :njgt*ezq );l(fnf 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 w 6awsfzzf1 d6t,,sh-c c2+:b df qo9mdith LEDs. LED is the acronym for which one of the followi,ob-9 dt2ss,:dhq6fc6 fz da1fmw cz+ng 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 8tuwisv9kt8 tlm;fm42 ni +z7graphite 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 of w 2tu8f4mi +n7mv9lz8;t tksithe 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 Ia +)oi+/u nbr xz8 fck.zxvfuh0d)3k-I has twice the dzk8 3bi ndchaf+v)xx/uz+r o-)k.f0uiameter 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 ha(p 7pr3m3nb4h yw h-dv3uegspm)b : f-s twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a (sn 47fbm3h3- p3vhumr yppbgw- :)deresistance 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 pxbx -(foe6z1cuc ,r0q4xvl3 j iece of material is then drawn so that it is a cylinder with new length 2L. What happens toocx 64jl 0x1q zrx3f,v(beuc- 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 2o9kskg6j;c0bpb8 ky light bulb. He decides to modify the filament. How shouly2gp;kjbkk0c8bs o6 9d the filament of a lightbulb be modified 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 tou 9.kps2(al are made of the same material. The length andt.u sa2l9ok(p radius of each 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 resistors, 7wm- fipduhbc( .zm(th5ncg4t8) k+n each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combitncmdmi (w5h)zg4-c7. (bf+t nhkpu8nation 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 diagram hasjsepz,tap 4p 8n;n ;oaro4 f79nd0+zb internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Tho,7 n;pe40a4o+bp;ndtz s jp nzarf8 9e 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 circui -mz+cgx:cz3x t shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram zm-c 3g:x c+zx
- 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 abs g(+rmp6 kd:2ol *wnll three resistors is equal, which of the following statements mug*:rs wp6bok2n+m ( dlst 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 q zz c2ih/;tj00wow *c8nmc 0iof 5 identical light bulbs and 2 fh2owq* z / ij0z0mi8ctcwcn0;lashlight 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 NOT true concerning the simple circu3k.wm/m o*l yy 8b.xpu8kdj i0it shown wher8ylp 0*j .ym/8o.kbxiwdkmu3 e 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 seriesmz d-vo1f1ei3o ,no , wkc(*b (akm6lh to a battery. Bulb X is brig3-*owo(m e k, ocmik1d(l zva,1hbn 6fhter 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 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 re cbbm:h+g3 0vf)9wcgksistor in 5 seconds once :) m03wckbgvc 9gh b+fthe 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 simple circuit havs f)n l)iz- ;mcf)ri/he the same resistan) -h)nrsf f/zimil;c) ce, 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 current through the 6.0 Ωe.,lpj9 jj g y3itf-5h resist53p.,9jfjy e h l-gtjior is 1.0 A. What 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, and R3 aree3ke)i( n +uhe 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 acrossun3 i e+ee)kh( 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 resis)2 k oakymb.wl0 xm ,n;h;osv+tors R1, R2 andR3 are connected in parallel to a batteoybm;2,ao sm+hvl.nw;x0)kk ry. Suppose R1 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 6y;qe((bpn ycrated 1200 watts and 120 volts. What is the maximum value of the current under these conditby; (e (pn6yqcions?

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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 ligjzngj7+d3 aw4gy quv+62tjz) htbulb designed to operate at 120 vol 632jvg7+jw+n4qz)u adjyzgtts?

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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 thrw5mcvamv,58lm f-p f);t hdw, ough a 4 ohm resistor that is dissipating 36 watts of power?vm;wlw,cp8 v,-dfahm )5 t5fm

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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 "12)x- x3flyaknsfg9( rok5 z16hj;:cb 9 yoc,hs0 volt, 600 watt.” In nooc 6hx,c19y(f kl 9;hsyjzr5s- : gbknf)a3xormal 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 cir0 -74aiae9d:r dd62ss*e) xaicn he)iqsl.fdcuit containing only three identical 6Ω di0r )aesndeq2idh:sfa6ld.* -4e 9i)ac 7xsresistors?

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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 threeimov4 ru s92q) l.m0+maky/ ri 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thrr qoi.vasm /r+2lku4y0 )m9 imee 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 togethe8bfebph0)4 er-r .j cwr in differene rf. b-bcrw4j)0p8 eht configurations. 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 connectns2plc(9fm)fjk ab 34s + mfi+ed 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 connectedi9akls (mcnb)fm4 +2f3+ jfps 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 qn;sl je1 / ro7hd7ok53nuh)rand R2, are connected in parallel, the equivalent resistance of the c7e)qd1uo5snjh7 rlr;onk3 /hombination 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 a resistance of 12Ω whetkq2-i16lr wnl, u /ten operating at 120 volts. What is the m,eu 1r iql/w6tlk-n2t inimum amount of 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 ohm resistor that is dissipating n9x1sh0w nkj) 36 waj0x9)snk1 hwn tts of 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 draws 13 amperes of current when cym-6 hav;v.wv onnected to 120 volts. If the price of em w.vv-6vah ;ylectricity 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 65ov;m gp56.bvaakeza48c cjd2ij9dld it cost to keep a 100W lightbulb lit continuously for 1 year at a rate ovo2pazjd9ke45imcj8ab dg 6; 5 .v 6acf $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 in a pod 4azalj -28tx0oc dc49pxuy: wer of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulc-tc4oxdx j82 zpl0 auayd94: b?

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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 comgc458s8 twfcl0ekig0dpmq 3 5puter 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 ssq8wtc8f0k5 g lc di54mep03gametime?

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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 c51x/mihc hn3circuit as shown tohixnm5h1 c/3c 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 circuit9es d 3.h k+f:apzsy;mdkr90q as shown to th +9:k9ryp 0ksf.sh3dedm ;q aze 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 ammi0er5jc+ dukp 8 tz 1h:b6vd(keter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amep(bd +krdz :u1tic508kvj6h meter 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 three re , ha7kw,;:y3ouo hjxhl q91hxsistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 x a,9,j: 3kuo7h ;hoq1ylwhxh 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 batte3tej 9,.n(ibrrwosfc sr(w;7ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sho3.isr(w bjfeos( ,9tnrwcr 7;wn 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 circuit shown to the right, what is the equoivv +w .dk/h(u7; 6lsmkzm 2xivalent resistance? Assume that all wires are ideal, the battery h(ds/ xz m.mk v2iu+low; 76khvas 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 toyeh8xuyk i9 addtrrugv110h *.m6)4h the right with resyrx4tmhh) uurva960k y h*di.g811 ed istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ley,fn 9etp:*connected in a combination series and parallel circuit to a voltage p,9*n: lte yefsource.
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 re/ou59pz :y-f r nzu17l4 +dphmjl ( epx9u:bsosistors connected in a combination series and paralle/1( ub7omzp-9xod f 4hj:psluzep9u: 5 +rlynl 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 bulbs are identical. cqnfxe 80r0 jahp2-(p Which bulb will be the bjhp rc- qpe xn82f(a00rightest?


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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 ammeteri4od u/cqb x6t ,+jo2b, a switch and three resistors are connected as shown. With the swiji6tb,x u /2qocdb4+otch 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,jpr;zd 1*r .ez a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsdj1z ; z*prr.e 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 connitj( n j (cnbem7:l9 w9(apzx4ected as shown. With the switch open as shown in the diagram the ammeter readp4t:(lni(wbj7z9 m (xejanc9 s 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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