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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 lwo96.wjg+9xs gmzv,v94*nu o4rze pexists 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 interior of the mgjz99 lx.v ,szgo6r44wu+e9vw p*o nresistor?


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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________ po9(xtaken-ig) 9t5 z_each resistor iaz 9x)tekip9- n otg5(s 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 thr4b)7x6 ltezemknpa;0 ough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wi lbe76n4k)tz0xma ;peres 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,; ilu+miod.)pm8dx g replaced with LEDs. LED is the acronym g.i,)d +xom;ilud8m p for which one of 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-sectional aq pm/z,+utg b,rea 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 ct/u qmz,g,pb+ylindrical 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 za8cdg ; :o2v:z ijvdb: vmi9;j8sga)II has twice the diameter and twice the length of I. If I has resistance R,i9)2zi:av ;s8 :cogvz8jad;b :m gdjv 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 an.; iwmz; k rmjbv2-at4 c6ln yut8wd(;d half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance of mzjc vdt ky4n-(;l;b2r;wu. w6i8mat

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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 sdzt gj,uu ,,bs28 (aif m;+fgr. This piece of material is then drawn so that it is a cy(,;8gu bjfu2st d +a sgiz,mf,linder 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 E m /pu/kdtsf(iqw+) o1nt)2 qldison wants to make a brighter light bulb. He decides to modifmti1(l)snw u /qp2f)/kto d+qy the filament. How should 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 resistor 9jm9 g(jqsdp7s are made of the same material. The length and (m9 g9 sd7pjjqradius 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, each of resistance R, artyd6 ( vx,3dmfe connected to a battery in the following way: “Two resistors are connected in series. This combinationfv d(dx,t m6y3 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 accompvgtz9m9 in.d* anying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter.9znmdg vi* t9 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. The three bulbs8p0:s t j- j1aicag5yd 1, 2, and 3 - represented aj t:aypa5j g8c1-i0ds s 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 curren :-i98kjd 1xz ixdm5xa0cc,vpyjza8;t in all three resistors is equal, which of5icz1; z :c,a-9dxj8imdv pa8kxx0yj 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 composed of 8yd0jidox68;v7 gh qxd;nw 2aog/ fh 95 identical light bulbs and 2 flashlight cells. Which bulb ( /h9na78dd;qjx682g0 fix y v;dwhgoo 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 stateme f ntx 67191ec0s8hfe bqkvqk:nts is NOT true concerning the simple circuit shown where resistors Rbe q n:k 8tq7k 1ffvh01e6csx91, 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 conne.)7 )i+ 4j i,whj -fmltyy 4efhygf.uacted in series to a battery. Bulb X is brighter than bulb Y. Assume all circj af.)m74u.) +h4 yhyf fijiytlw ,-geuit 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 id3fm -mch0)ht**udk 9c,i v omtentified resistor in 5 umfmh*-)* cvtckh,mi3 9td o0 seconds once the 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 igzq a1ovo.1j9 gj /3pdt ;k-vmn the following simple circuit have the same resistance, which would dissipate the greatest poj zm -gd9aq 1g./otk3pvoj;v 1wer?


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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 t+r5wt)hn e1 lthe 6.0 Ω resistor is 1.0 A. What is 1 htwtr) 5nl+ethe 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 are connected in series to aom j) g4(8oka2ljj nzx5rs18 b battery. Suppose R1 carries a current of 2.0 A, R2 has a resbox 5 jj smrj81(nzl )g4k82oaistance 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 resistors2h88ygr8 b oqw R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipa8ywbhg 8q8o r2tes 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 coi5 2r+3kzmqa jul is rated 1200 watts and 120 volts. What is the maximum value of the current ur5a mjq 3k2+zunder 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 iy:yd g89o1 owbyu/b *watt lightbulb designed to operate at 120 v9 yuo:by1/8 wi ydog*bolts?

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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 dissipatiny -1(pf0 af9 wh hpd sjjif1uq7gkb+87g 36 watts of pow7ppu7 jh f1sk819jibqhag- 0(dywf+ fer?

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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 presss 6r;zmv(:q kb clothes is marked "120 volt, 600 watt.” In n:zqm(;v 6bk rsormal 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 producz(*dzu 3ks;lfi, t; nbed by a circuit containik b * t(,;u3;nzfildzsng only three identical 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 equivalent aw hd+:-7 vh3 xbcnxplyix am70p1:9presistances CANNOT be produced using all three resisto1hpb:3ahx0n pd +7 xwvmip7x:9al c-yrs?

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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 together in dif x 8m8yry y47gm8jlf d.;1fzwka-cn+ zferent configurations. If all three resistors are used in a circuit, how ma.j4ga8wr nlz1y dc-z mkfyx; y8mf7 8+ny 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 c3;-7 p w*t/kurefrihnonnected to a battery, a total power P is dissipated in the circuit. He-;37 tkh/wrrn* ifupow 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 qj .) 3mf.z asfom1(brR2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the foll mozfr.m .bfj1)3s aq(owing 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 isgx*izsh00 ;jp d.5fy v designed 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 0.45 kg of wjxd z0*y0f pis.g 5;hvater 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 thro z xa7thlv8-zo 1o8lxsp2i,:0d/ hsskmpw)8z ugh a 4 ohm resistor that is dissipating 36 watts of po8xk tz /dl)mioh1l7 w o8zv0,x-8 ssh:ppsaz2wer?

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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 :xmi s0* im-(j zv5a*dr6m 2wsebud g:volts. If the price of electri zwavm(*s -dm06mbuidg j5*ri2:xs :ecity 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 li8 1u;9czzovb wvqle+: t continuously fol+u c v1bvz:oq9;wez8r 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 lightbulb res l,:dr)dg *nqeults in a power of 24.0 W associated with d r)gdnl :qe,*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 six owns a compb6(etw/q1n2 c9g mubiu4x ;zoy+ fc7uuter rated at 500 watts in a 120 V circuit. If all computers aregu(yb;wu2cn9c7et/ 6+u4zqobm 1 ixf 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 four resistors to form a sim* 1:8xscr6hhoi tzx s5nb77a)qluoj/ple circuit as shown to the rcxs1zn8so q tuha7l/ri*5o:x67b)h jight.
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,1-fwh6z -/ p34wm zgwmudbc d resistors to form a simple circuit as shown to t w-, mgzf1ub6/wwzhd -pd4c m3he 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 three resistors are con:wu ;mj /9rj8g+wub yrnected as/wuuj+w 9:jr y;8mgb r 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 three resistors are con 5j)r bck6r7xfnected as shown. With the)b rj6frk7cx 5 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 switch and uu +q(pux0pr*q1;y9np2)s,y/iqespzhw u1 ythree resistors are connected as shown. Withs9sz*(/+) u nir1puqu ,y y2ypqw h0up;1ex qp 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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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 *sv0b//dl4 :-lqbobj s, bc zoright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal rjlzs:vscbo4ld 0,bb / ob*-q/esistance, 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 resistanc33h qaq,y8/p5w vs cate of the circuit shown to the right with resistanw3qsy3thqc5, /a8va pces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicfjn 9ep1ca6 2-a)7*wrxv8gldb1y h vsal resistors connected in a combination series and parallel circuit to a volbv-nydsa eh)jl xp *vg8921 a cf716rwtage 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 identicamqrqe3zz7qid .h3 (,bl resistors connected in a combination series and parallel circuit to a voltage source.q7,qm b(qrd3z.3 ehzi
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 circ(h 0bqst-;qiauit diagram, all of the bulbs are identical. Which bulb wilhq0-at(q i; bsl 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 battery, an ideal ammeter,e 6 ybke ym+ ,kbq2fqr9:et0ff14dr( s a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0ede yqe + fbtq4:k6,b m(kf1 yr92f0rs 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 switchl; kc e33; 4did8afsxg and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampek8ex;;ds3giaclfd3 4 res.
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 a z*s :ivtr3z6emmeter, a switch and three resistors are connected as shown. With the switch open as shown izve6:t s3ir *zn 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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