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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 h+zdt vy:wus6yo z2*- the metal resistor connected to the battery. Which one of the following choices best describes the direction u :dv2+sz*ot zh 6ywy-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 resistors areoqvh/w 9fbi 6u k/xr9) connected in parallel, the_________each resistor is the sark qfo)/9i9hbx6uvw/me.

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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 wire r,udsvg a ,f2;2tr1n/w p4.jvk7m ga7hg xh9hof a lightbulb causes the filament to become auh rh f1/;vjsv72kha7x2mggg,4, .9rndpwt 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 householdf 5 a*pslg1gycu+nlm+ v 615v0eisb-y lights are being replaced with LEDs. LED is the acronym for wfg*v cus5y-e+ ll+mn1b51 i ag 6pvys0hich 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 gra j n/;lv3m.iodphite 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 the new resistivity to the old resistivity of the cylin/div ml.no; j3drical 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 II has twice th. zxud2 jpd0+sjx 1on(e disx.xj+du2oz1pj d0n(ameter 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 materialj/8alu.g20 mzmm zk.6 fmz)yf but has twice the diameter and half the length of wire X. If wire X has a 6. mzjf20m )./8uzmf lgamzy kresistance 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 radius r. T6fjknz5 n)+ b .cqw90f* lucbr+9(d xfbp;ei vhis piece of material is 5b0ff9nb+vc +pb .r9; f ud*l k6x(i)cjqwnzethen drawn so that it is a cylinder 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 brighter light bulb. He decidec2*syx6yfl/r f n fu0-u/j5 ams to modify the filament. Hoslff 0/fu-5 y y2xua*/jr6 nmcw 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 made of the same m(3u84kyksadns .rf8e aterial. The length and radius of each resistor iu4(8f 8e.rak nsyds k3s:
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 connected to a bmk8uh12,vbszq.qg3ios z 3 .zattery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel bqv z3sg.qih82 kz13. zou, smto 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 cirivw;i6*tufy +kh3 0 0fyybpm-cuit 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 nearlvm; f 3+y b0*yy-kihi0wpf6 tuy:


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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 shownhgm.+7fcb 0gq to the right. The three bulbs 1, 2, and 3 - reprbmhc.7gf q+g0esented as 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 electricacagxv +mn o5:z ,qb.8ql circuit at the right. If the current in all three resistors in qob5c:.v 8, agmxz+qs 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 simplwfn0h )k 20c4pdu6+32mpbhc dfaklx4 e electric circuit composed of 5 identical light bulbs and 2 flashlight ck+ph2mnukflwcpdx )a443 f bh cd2600ells. 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 tru hk+ o4 2gpeo9;nk) g+xioduo(e concerning the simple circuit shown where resistori o)okhog 9 koxp(4e++g;ndu2s 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 serie9muy o-f p5lqewd 3,jc)sj;9ls to a battery. Bulb X is bright qp;sye lj3fj9wcmo-) uld ,59er 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 identifiei).yqlq1gv-3cvct s* d resistor in 5 s3*q i1cvq) l-c. svgyteconds 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 following simple circuit have the s vhfu4 -1(fh6y,hnx,wt)dt p*u5omrtame resistance, which would dissipate the greatestnt)( o f rfwdmt5,16tvu h4hx* ,-yuhp 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 cirn+c,e ul4l/uu 9+v.ymv x lj)9l0bumv8dnrn;cuit diagram, the current through the 6.0 Ω resistcnu j ,v0uvyu vb)+9m4 nn. edmuxlll9l;/r+ 8or 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 are connected qhekkkp-bb14,th grt(p3: 3cin series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipa kbh-t4,1 :( htbg3kkpe3qprctes 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 resisto:sql8f51hao2 hlu 4)pb rx-ycd )vt:qrs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesv2d u yl8aqh):po)lf45c sbthx 1-q:r 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 wattx9 ghcqq4 i2(ppxa9 u* *9izuds and 120 volts. What is the maximum value of the current under tu49pdz ai9ixq9gc2 *hpuqx (*hese 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 watofsu+jt en(ev j9 :3icvi3a5-t lightbulb designed to operate at 120 volts? 9ct3+a:v 5ejn(v3fsioeju-i

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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 dx9icf 0)3-manv. qsysissipating 36 watts of p .m3nv) -ss0yaqf9i cxower?

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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 / a. y2hv5wb4mrze4pqy* c2oqwatt.” In normal use,2 qe5hyrwby v4c qom./4*2z ap 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 coul.i;8v.y 7yr ewg riit5d NOT be produced by a circuit containing only three identic .t. w7rirve ;yy85igial 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 0 eou0k 72kky31onitf4p:r xwresistors. Which of the following equivalent resistances CANNOT be prki xnow4e07 2yut f 01kk:3poroduced 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 togethe0c (khwp3wa490s jl(jzhjhc 1u8k .lcr in different configurations. If all three resistors are used in a circuit, how many differepkjlj c90h(c40u(khw a8s jzlhc1 .3wnt 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 resistorx:yz i*m)bj8 i is connected 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 connected in series using the same battery? Assume the internal resistance of the battey)8j :i zxb*imry 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, ai n71,h wigw+ q(o+j fljk1j*tre connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following sf ,t l+jw7h*nq1i1 +j jwiogk(tatements 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 j +(+aovvrow u,)xja2designed 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 0.45a 2o+wrvvj+ xja)u,(o 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/mzgv ,ti ns0kr d+(vd8y+;kt, k(uy w is dissipating 36 war+k(8/+, mndyk wk tz;uytg(ds vvi ,0tts 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 connected mj/0fou zea6d +l/xc+to 120 volts. If the price of elecj am6/oldufzxec+/0+ tricity 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 cofv(8n8u; szwg (qaf- ost to keep a 100W lightbulb lit continuously for 1 year at a ratuosf8w;(f ga qn8( vz-e 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 resul 4 e-qy(hg8b:x.bazrd ts in a power of 24.0 W associated with the bulb. Which one of the following choices best repr( g:-bhbdzy x4ae8rq. esents 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 ad-o.2;kz iij,jtoxw8 oc qf:: t 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 can8 d kqw;jic,oxt jo:2f .-oi:z 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 foi9ruz22edaj,qse2/,(yxy f0 n(srban,,gpbur resistors to form a simple circuit as shown to the rig,ysbesx z/ji a(nf0q,na ygr ed29 b 22(p,,urht.
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 battem h6d j3 6.ayius:i9a3asq3djry is connected to four resistors to form a simple circuit as shown to the right. 3h asiysaqd3a9j6 ij:du36 .m
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 resistofh75q cw:z jab45af33gqwrk/ lh;/gers are connected as shown. With the switch open as shoc3efhz;wklaq: / r5ajfwq gh/75 b3 g4wn 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. qk33abt/bsz.k r.u c9a+o xi are connected as shown. With the switch open as show+o iq axs9a..ktrczu.k3 /b 3bn 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 idea*cm pnnu,mq dj;u134pkq:tc7l ammeter, a switch and three resistors are connected as shown. With the switnckpqmpu*3m ud:q14 nj c,7; tch 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 showninbnefmg *h(8nm rbg41(u 9y; to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery hyg 4nhuimbe (9b(ngfrnm8* ;1as 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 to the right withjj0kjatt h6scd24 1a8ksd4u bnd468i res06 ktasu dkd44842 8ch1j6 jtbn idjsaistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connevuqxr06( )u9ma v8k xpcted in a combination series and par mkruaxpu9q 0xv ()6v8allel 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 resk0vdx3wyc1k1g w ,j1v istors connected in a combination series and pardwv1v0 wjykkcxg , 113allel 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 ide+4g hqlp)u,kxntical. Which bulb will be the brkh4l u qx,pg)+ightest?


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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 switsqg p:niifu4:r( vy: vb59;vl erg/q*ch and three resistors are connected as shown. With gv5 4(gvnyb il/9:q ;*fqrus:vpe:ri 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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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 resistors ar/o-nxww,:5u5mx w:i r+zys l oe connected as shown. With the switch open as shown in the diagram the ammeter r+:5im/ul :on5xwxzso ,wr-yweads 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 switchbrotw2rbf;q.qw6 n*6ez v- . h and three resistors are connected as shown.nq6hwq.b bw6vo e.z*rt;r 2- f With 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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    总分:50分 及格:30分 时间:不限时
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