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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 cur53 kris dv x-hp4i wj.+:g4zuwrent exists in the metal resistor connected to the battery. Which one of the fop s.j: h-i uw4 dgix4kw5rv3z+llowing 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 resistor,8rp2m4nw8 sxaw 7 kils are connected in parallel, the_________each resista84ws2n8 kw 7rlmxi ,por 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 thin filament wi31qb3q2(d:u qd ss*d dww awt49ae bk)re of a lightbulb causes the filament to become white hot, while the larger wires connected to ths19d w b ): eqd3w2 3udk(qdts4qa*abwe 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 r2)e lju-f1y-oxp0f6 xxj2wy aeplaced with LEDs. LED is the acronym for which x1fe p-2 a6- jly)uyj0 2ofxwxone 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-v;8i+o vl5*7;hsa hxhai tx)y 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 ;t+a 57oy*h s vha i)x8ihvl;xL. 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 materzrh2 pr3kmfi/u9 o z+7ial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistance 97izo3fz/r hu2rkm +p

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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 diametn4ulb .7d3xtzer and half the length of wire X. If t7.3 4nzbl duxwire X has 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 resistor has length L and r j5h57hklbd;vadius 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 l7vhb5kd j;h5because 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 bri *g08w kxhizqknsha9px f30(-ghter light bulb. He decides tox08p-ahqw*9g kxs(0 3ikfhzn modify 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 resistors are madyk0te*+hmai n/ab4 f nl.u2v0 e of the same material. The length and radius of each resistor i2nbavy.l uan0i*04 +kem/f th s:
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 connectenix(*i3- vxzj d 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.” What is the equivalent resistance oijnv* (i3 -xxzf 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 circui9n 6nthp mw3;l 3+cycqt diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The acy6lt w3np;cq9n+mh3mmeter 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 s.6j1y8l n72purifeujy 5lqt7 hown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the du5jl1.f78lep6i qyruntj2 7yiagram
- 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 circnots37mq.e) 66 (vn0 dxycx oeuit at the right. If the current in all three resistors is equal, which of the following stato.6ys 7vdntm6 neeqcoxx03)(ements 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 circub(vb/9rn lf f /+o;atyit composed of 5 identical light bulbsvf/(t+ay bob9n /r;lf 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 following statements is NOT true concerning the simple,tn r- ogquo1(eo1dew5y8,pe circuit shown where resistors R1, R2 and R3 are have equal resi,woq1 dep(oe roe1gyu8n-5,t stances?


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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 series to a batterybt)f0t*wnm lv v+c5ar3(b 0 wg3lqxr 0. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parall3r 0t llvg )naqrv+030b5(c w*wfxb mtel 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 resistor in g *sh/mvtauf0 ky56y15 seconyyfsth v5u 1/*6 akm0gds 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 u4 ,3b4osznl lresistors in the following simple circuit have the same resistance, which would dissipate the greatest poo,zbnl u344sl 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,pj0qwqsp*)x 6 the current through the 6.0 Ω resistor is 1.0 A. What )p 0wjq6 p*xsqis 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, R2j:vv+jgp4r e7, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a rervv4ej+ :g7pj sistance 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 resi -16jf4iszvnsmcp8+,gm . oj nstors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across s1mico86g4nn jvm,p+.- fs z jit, 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 coiiid 11unwo(0kpq1t) vl is rated 1200 watts and 120 volts. What is the maximum value of the vqin)0 (p11wu tkiod1current 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 lightbulb desoy6mc j(zga fz960ut.myelgo y065 1signed to operate at 120 volts6.ogltzyo09a szy1ufy5e m 6 cg 0mj6(?

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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 dissipating 36 w 0q,ia10azyft)u xsac,eq (+;bsfc,x atts of pe xzi c 0qf1s0baf;x,t(,saa+c )uqy,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 clothe;l/j2 *3;j hj8cix2lt xcmyzxs is marked "120 volt, 600 watt.” In normal use, t cz lcjlimx;;j/22yx*th83 jx he 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 fom rjp 1)8+/lteosbe iz c4v*)qllowing resistances could NOT be produced by a circuit cont)jsv+ro zct)8 4 ipl*emb /1qeaining 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 equivalen0jlx*kr 3, .mezd8yo y+yccwl rd 2y+w:zd;. ht resistances h lk8de+ zwym.;jw y,d3dr l2cy:0y+zx r*oc. 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 together in dos +q425vbvkg ifferent configurations. If all three resistors are used in a c+so v 2vq54gkbircuit, 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 power P is drt0j9av,wz y5z, 7jh hissipated in the circuit. How much total power is dissipated in5j9,arw vz, 0thhzjy7 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 connected in l:m+e7u24i j twc8) vwxe+y apparallel, the equivalent resistance of the combination is 5Ω . Which of :wyp um ++ wjei8clv42a)7te xthe 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 when operaqpjui080k(t5 6jryujting at 120 volts. t0jpryjji 5u8k(q6u 0What is the 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 ohm resistor that is dissipatinf3j w e*0n)y+45thihj+bn)buo ny ;xisr(x2vg 36 wathbfxj0sv+ ty ex i*bn5inw)oru 2+3 n h(y;4)jts 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 conn ih70yb, u5hhuected to 120 volts. If the price of electricity iu h57hiy0bh,u s $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 lightblna ,2dn b:j,xulb lit continuously for:b,a jnd ,nl2x 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 mn0/,ow yo 5x x-,bycfqn,lv7results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lighm vf cbn0/xnl,,,q5o o7 yy-xwtbulb?

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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 atvt + yrl934dmj 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 jtd4 m9y 3+lvrnumber 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 sg2 ath,mt)p 7simple circuit as shown to the s)pa2,m 7tht gright.
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 connectkv.c/puji/q-7a v fi0p5c k0 jed to four resistors to form a simple circuit as/pui faq0 c7k/0jj.5pvkic-v shown to 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 ideal ammeter, a switch and three resist45rue iiptf 9pa*5 dn9ors are connected p5iapirf9 n d9 5t4ue*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 three rrn-nyzbbibma 7 v5/kx2/ jm/8esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesvimjz a/-5y 7bkbx/ /nm8 br2n.
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 9h8h0c97 vk- rynjmbz0mpj 6tand three resistors are connected as shown. With the switch open as shown in the dia6m tj09kj- 9hpbcryvm7nz0h 8gram 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 shozyb c71cxgn//gee6b,2h +oo l wn to the right, what is the equivalent resistance? Asbn y 7 ze/g,b6/+o xec12ogclhsume that all wires 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 of thegj.ip84ahkw+4klx s(0cfe alyo5( r3 circuit shown to the right with resistana8ksllk 0+4refay .hij (c5w 3o p(4gxces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 :ivn(m -c b. 0ag/iq3z2dd bukbs)*.cfyh7pe connected in a combination dkf7 (hi)id.q/0:b-c.zey2 banm ugpbscv*3series and parallel 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 identicankszk+umg:/ z5h tbx/;7 ;b3z )htbpsl resistors connected in a combination series and parallel cigbt;pz)z7/m;xkskt bh+ 3 s/5zu: nbhrcuit 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.j aizjr2+p(8j Which bulb will be the brigzjr+p8jj(i a2htest?


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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 el* ja;tw9o w2d6 0k+v,jkfecideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere k;eafv wd,k+jlwe0 o2c96*tjs.
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 u1t d0x6- .qym yioo6eswitch and three resistors are connected as shown. With the switch open as shown in the di 1exy 0qoyiotd. -u66magram 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 three resistorsq 2ypsw)mz if ondg xe47,+p*. are connected as shown. With the switch open as shown in the diagram the ammeter readg,2 s7*+pipozn qe4 fw.yx) dms 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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