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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 currentep47 k0nfknc6 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 f7 np06fe c4nkkield 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 connectedzc53 xhj ./jdv in parallel, the_________each resisto.5j 3jcvdxhz/r is 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 t8uek 6cnzvt 6 j6g,-yx*,mfplhin filament wire of a lightbulb causes the filament to bt-m,6p *c vuy,kxlz 86fnj6ge ecome 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 rep:f s0;5)f yuiqj2l2u dvuhlvl ylz:30laced with LEDs. LED is the acronym for which one of the following chof 0:su5h yz2yv):lul32llqv0 i fdj;uices?

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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 cross2agyv() yrmrj5vm6 w.-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that tmv2 (rg .)5avryw6jymhe 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 materia :.6ugu7ssfsn l. Wire II has twice the diameter and twice the lengtnf6g ssuus: 7.h 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 twixz -yeivlqq9ebozo98k6cb, 9 s (no6+ ce the diameter and half the length of wire X. If wire X has ae669 xz9(oln-okozesyb+9vbq,8qi c 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 resistor hasgf +:k ji:n*nf length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. W: jf*nfg+ik: nhat 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 ly4 6oprhj)kt,3oj/idison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given vo )yjoir/j,l64p kt3h oltage?


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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 lc1wo- i byl;70meb;crn 2 bk*resistors are made of the same material. The length and radius of each resisto cb;0m2b1by 7r-ll;owin*cke r 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 cohn4r8y ;-r6d r,vwfe bnnected 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 fourth resistor.” Wrvdfwr6 b;r n8hy4,e- hat 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 accompan.o,nr6mx ce y s,k;yl8ying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly: ek, yy., l6ncx8s;rmo


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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 copxgadfhe 2hq05z4; a.mpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as2;h haadz4pe0.gxfq 5 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 ftya(rqo1put0muc.xna * 7sfo. o5+a;b.e k0at the right. If the current in all three r;. .xa0yna u(e*sb7fo0aq.1+ t5 cf prokmtuoesistors is equal, which 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 represents a simple ea+1vq fw0z g7llectric circuit composed of 5 idew vl+ fqz70ga1ntical light bulbs and 2 flashlight 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 yanp658*zg r8 dj;ihp following statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have py8rgin a; pj*zh8 56dequal 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 conneso -su )ivj44scted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elementsus vs s)4jo4i- 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 identifiedpu6uq lq-oi 8y.z,qe.2im -gi resistor in 5 seconds once the circuit was c6qq q,lp 8o i.iu gzi.-muy-2elosed?


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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 resis94 7sz y 8clux9q5yczetors in the following simple circuit have the same resisq l8 7uczzy ye4xcs995tance, 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 Ω rl lpwj (a/i/xc )i)a:resistor is 1.0 A. What is the power supply//a(x:aw) l)plir icj 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 t1lop+s 9y 0alconnected in series to a battery. Suppose R1 carries a current of+ o1yltslpa 09 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, Repqx4ai2fxu tc8 d/3, 2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across ix 23i8axtqf4d,c p u/et, 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 +rqb5q7v wcb/ 120 volts. What is the maximum value of the curr qb+vqc/7 wbr5ent 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 lightbulle3;8 -*nj(aqrv2f-q r-gtjdtrk g4ub designed to operate at 120 voltd;qu-rn v-tgej2fk4(3g t* a lj-8qrrs?

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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 igtgr1ol+,0uh +z 6h6 elb(cka 4 ohm resistor that is dissipating 36 watts of bgz l+ ichkte gh1,0o66( r+lupower?

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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 watt.” In4oo 4*3orllt f normal use, the current in i*ool4 l4t3o rft 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 resis 2.vbwqx65o.0khq1a : irp0 umif) xaytances could NOT be produced by a circuit containing onlyv q1 fqiphykm)6:.a x2wi o00r.x5uab 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 x;n k7p).hhq2f ovg,gequivalent resistances CANNOT be produced using all threfx.phh)k7gv2; gno , qe 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 vs(8j68ruiw 7)o owila alues can be connected together in different configurations. If all three resistos (uj7wrwo8 lai)oi 68rs 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 d*)5joh7fi w2a hwo a6total power 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 h )doo*h5ww2i a6j fa7internal 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, havini,v 4bs/z:yihg resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of th/zvi ysbh,:i4 e 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 tzvx/v -0ryl4+ 3e)v 8 pjccvlit has a resistance of 12Ω when operating at 120 volts. What is thejt-v3c lv8per+ vl0 4 y)xczv/ minimum 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 o 17w3h odxijdqbx :e--c8bl k:hm resistor that is dissipating 36 watts of powhd1c -xk8:b3d e job:qi-xw 7ler?

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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 connect2dk04ag *,s1muvmv e wed to 120 volts. If the price of electricity 1m20 sdv v*wmka4ue,g 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 x,ciejdz+lg1 kr29n2 a 100W lightbulb lit continuously xzlind,k +e9jc2g2r 1for 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 lightbuixkd3s mlo/rt2*tb em71 2y6 slb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lil*i/obt2 ds3rt se 67m12myxkghtbulb?

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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 comk1 m+6ps8zg yjm rm*c1puter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single c m 1*8ykjmgs+p16 zmrcircuit 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 resis:1rq bavr ,c;utors to form a simple circuit as shownrcav :r,bq1u ; 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 connected to fouw9i( 0qgn1xlu r resistors to form a simple circuit as shown x 0g(w ul19qnito 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 batteryci9-8tosf+p 3gj mb*p, an ideal ammeter, a switch and three resistors are connected as shown. With thes-*gt9 p +pfj3b8moci 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(ri0n ah8cyw+)xy- ia three resistors are connected as shown. With then-cwia+ r ()8i0yxhay 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 tne*; my)a2gau6i)bm ,sm ybz :hree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.a)eu,b iay m: gn)* y6zs2mm;b
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 rezzvt;pek. x:ei ,6r 9rsistance? Assume that all wir k:v,pzeiex6r ;.rz9t es are ideal, the 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 sl(tm8j:v)p 9.ksndmdc -tb* of the circuit shown to the right with resistam8nm. b9dsp-( t) djvcs tl*:knces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ij0urc ,./czkmh 4qy*on a combination series and paralh.c r*mq,y/ 4uj zo0cklel 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 resistor y3evwe,rkq 76s connected in a combination seriewv ,7qe6e3ryk s and parallel 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. xu(.t3sbvtqe4 ju4.w . 3jewlWhich bulb will be the brighteslux v w334e. jjtubt(4s.qew .t?


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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, a switch and three resist9x7ubs /i6hi n*xr fw*ors are connected as shown. With the switch open as shown in the diagram the ammet6s*f97/r*n ixw buhxier 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 resistor5yuwzou5ssxu7yv6 )s2w a)e (s are connected as shown. With the switch open as shown in the diagram the ammeter reads 22uyaxsv(e wo 55)7)wuy 6ussz.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 resistors5zjn;l0hz y1 0camkj3 are connected as shown. With the switch oyj0 hcjakl; nmzz01 35pen 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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