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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 exgfgnaoj7 3k.o8a+f 9 t7yxz +kists 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 thyfjg+oz7ot. f+3xa89gak nk7e 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 resistordwt1c k0w1ex9 r8ht* vs are connected in parallel, the_________each resistvwehx*c 9 r10tt w8k1dor 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 e x77zjw i39r mx1s4ruthe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to tr z93u 4jxwsem 7i1rx7he 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. LEag8kcdf7g3ml3 (j,e u D is the acronym for whcg,m k3d8au( leg3j 7fich 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 andolnr/(t09lbl cross-sectional area A. It is to be placl/brt lln9(0oed 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 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 say h (fvnanew5+y9i+ l5me material. Wire II has twice the diameter and twice the length of I. If I hasn+( ani y5lf+ey5vw h9 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 thet hn1l60yg mtbs hz0(5 same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would ha(hh 16g0l b05mszntytve 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 L9wkumvv tq ,z vc*185wcuxr, * and radius r. This piece of material is then drawn so that it is a c ww5c v*8crvx1*vt ,9m zkuu,qylinder 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 bp)6 t.nv2 0as(uxch marighter light bulb. He decides to modify the filament. How shomp c0ta )a.v6nx(suh2uld 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 reywssh5q)f,e gy52 cv( sistors are made of the same material. The length and radius of each resi )2yefw(y sg55 vcs,qhstor 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 connn./ 9m 7bfbwyx8j (8ap7,p kk4awupleected 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 of7pyb n auea,p87m ./k fp4xb wwkj(98l 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 accompanyi0mav ee ybvrj+5dvjn5pj(yzn+7w2 6 1uv(sa*ng 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 mo 57e6aa0d zvjr+n+*u vvby5yj(ves 1p2mn jw(st 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 thbz qzw ;n,f0y s:25 ehnk(:xuse right. The three bulbs 1, 2, and 3 - represented as (;nw 5uq,k:ez bsx:h0yn2 zsfresistors 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 theu+wgd1wprmv 4, ekp2 2 right. If the current in all three resistors is equal, which of the following statkpg,du 2wwvr m2e+p14ements 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 simplecz7il26jrc* gwd/+;/gwn fwa electric circuit composed of 5 identical light bulbs and7fwcww+/jlzg*a/i6 g;2 c nrd 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 fo jw4+b pfs3da3llowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal jpds 33 4baf+wresistances?


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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 battery. Bulb X is brwh+;ydlme7l)- zms( v ighter 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 ; l-l (ym7e+hm vsdwz)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 passbw(m6ce +,xo(0l qqwq through the identified resistor in 5 seco+06w( bxqqmocwqe(,l nds 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 in the followr3cqx/ kfs +y(b 3kn4ling simple circuit have the same resistance, which would dissipate the greates/4c kqb (ls3n3fk+x ryt 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 curr htkv38u 9s,) rv++nvjw- w2lwqhit(t2 w9rnn ent through the 6.0 Ω resistor is lhr+ vv w2ts 8tww2-n, 99rt+nu ni v(hqkjw)3 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 are connected in series to a 6 x aiyafn- pi-5k*0lgbattery. Suppose R1 kxi-yng*- ai6 5lp 0afcarries 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 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,l z6r i1g(ec8j0b;u am R2 andR3 are connected in parallel to a battery. la;cm1b( e6giz 8u0jr 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 i qx.:s8q(zsxuk -z*nhs rated 1200 watts and 120 volts. What is the maximum vahz:q( x sxz*qk8 n.-uslue of 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 resistance of a 60 watt lightbulb designedw1 chbt2;xh+nk: og3zsn)n d( to operate at 120 volk sn23+hct:bgnnh;woz) x 1 (dts?

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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 re6) dg, n9n9(tltge 3b e8ou3iu-qgr orsistor that is dissipating 36 watts of pe 8ilbuoe6qnrtg3tg9rd,g( - )3o9 u nower?

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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 otkqv9j-g3d g62yo/ tpress clothes is marked "120 volt, 600 watt.” In normal use g /tyqd9tk236og-voj, 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 co xjaq3req-qk nk/qek40 55 oxbb26 dr9uld NOT be produced by a circuit containing only thre62ej rq q5459roxkkben3/q k0d-abx qe 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 4bwu5/ 5 tfez( u h:jvkbnv9w:2epd w.Ω resistors. Which of the following equivalent resebt:wujb45w(2 v w/kh 5fe. :udpnv z9istances 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 jbebk8f m - cex) ).;6ehw3onbvalues can be connected together in different configurations. If bbk)b63ew8-oc)jenxh m e .;fall 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, -+8o.suui ot7wji,jpv ogbh9g vn+ 3 connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n iden gu v.3gi-ws, p, th v7o+ij9ujb8+onotical 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 gq18es3bm;i v:d o ombhk77w.in parallel, the equivalent resistance of the combination is 5Ω . Whi qk .:ib17; 3dmooev 8bhs7gwmch 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 *tga g3 l4abbf,8mn: n0axpi* 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of w,n:04g3a n8a xmfgbpb i* l*taater 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 fqc4sq-yc; 0zw ymk1/dissipating 36 watts of power?zfyq 0w k/m;csc14y -q

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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 1gd cygef rqqq2s 5y(60nh p2;720 volts. q(fg2p;0nd6qyh g 5ec ys2qr 7If the price 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( ag8r u;qfm5q continuously for 1 yeargr5a8(m f q;uq 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 results iox h8x1z0n 18 oiqgqrrt;/ 7bzn a power of 24.0 W associ; z78o0x/ 1rbg81qxtnihq ozrated with 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 computer rated at 500 watts in a 1,jw647l42jqa odwh:0snc. 0qptdno x20 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maj4l0nw d n,xq7cot ps6dj4 o2a0:hw. qximum 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 batter ci-je s*/5-;jfhbmyxy is connected to four resistors to form a simple circuit jcbfhjmy*5;s-exi- / as shown 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 iskvzigc62 u ;wob3 b4c, connected to four resistors to form a simple circuit as shown to3 gzo42 , uccvbwi6;kb 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 s *m 7pkh-px-gfwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter7pgp*fh-km x- 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 resisp36 g+ bkjub9gtors are connected as shown. With the switch open as shown in the diagram the amk+gg9b pub36j meter 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 three resistorsh/ce4hw r*1xcwm1l 2wc1qf 8z are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperxcce4rh11hq*w w 12wm8/lf czes.
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, whav kx(f *jeoh9 s(f9oi,t is the equivalent resistance? Assume that all wires are ideal, the bat js99o hkvo(iefxf(*,tery 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 the circuit shoxwzy,df qm.:rn- iq:1wn to the right with resistan,i: :yqw1f.mdr-qzx nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combinatk 7c:a ab8-dcxion series and parallel cirkdx7 8cb:a ca-cuit 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 connecte(-s0 ufbkv5s.wv+z3b cvj c0z d in a combination series andzb5+vv0c-wsc(3z . fu0sb kjv 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. Which b:9qz q yp;p6m;a3b*tf +eddz bulb will be the briga qf;t*dzz;qm+p edp69y b :b3htest?


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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 threpr .4yqjokv/;e resistors are connected as shown. With the switch open as shown in the diagram thy/ op.4 vkqjr;e 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 idejs,mvr r;v7,4 o-2pmhuet + keal ammeter, a switch and three resistors are connected as shown. Witht,h,vp mo 7+24rvm jr -uee;sk the 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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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 conowjx1 7m-;bwby, :wvjnected as shown. With the switch open as shown in the diagram the ammeter reads m,1o7jyxw:jb ; bww-v 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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