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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 the metal resitd4r6/rnl3zm i: yt+ fstor connected to the battery. Which one of the folt irf6+4:3mr d lyz/ntlowing 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 resistors are connected in parallel, the_________each res d1ft1ovaf+ p(istor is vta+1po( f 1fdthe 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 wire of a lightbulb causes the fie:rcc 9 hixa*lc*qze0);gt 8dlamentc8cze*r;da* hecl: 9)g0 qixt to become 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 replaced with LEDs. LED c(wm dn szb2xef/y1 yj);lk6:lucg0.is the acronym for which one of the follcf/)bwe02:.k6z ; yym(js1unxl cl gdowing 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 h9o ri/wgcv+n 3as 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 ratw3vn+9gci or/ io 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 materiaz 3/cg,ytb 3eql. Wire II has twice the diameter and twice the length of I. e/g3cyq tz,3b 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 ofb h3z) -0 k(wr*ye8*v+;blqyp o akvnm the same material but has twice the diameter and half the length of wire X. If wire X h*3o)*- (blwp ;ykqbrmvky0v e za n8+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 radius r. This a 0z qnurpsr/5+n9n* xpiece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because 9rn sax*nun 5z+ p0qr/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 w/(y(tjrs 7s kdants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in tdr7sj/ky(s (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 material. The len +r, v7asq0 nafi5oo5egth and radius of each resistor isfs 7a0qav55r,inoe+o :
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 batter3).vujq ldkg5 y in the following way: “Two resistors are connected in series. This combinatil q3djv5)gu.k on 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 accompanying circuit di rw0skcm6 2an/gj8v8+sh3z fq agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter read ag08c 8s/mzrsnjk2w+3 6h fvqing 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 c o7 xlc:),dwdwircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in t:oxd d ,7w)cwlhe 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 electn, w lb:by*4b,dv+zaprical circuit at the right. If the current in all three resistors is equal, which of the fop,lb*,b+b d:4ayzwv n llowing 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 ma0ra7rsa1-yws .tc, simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb ar7a0 my,s.warst1c- (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 followik;e e7cgg8 est07qg3j5dwg5c ng statements is NOT true concerning the simple circuit shown where resistors R1, R2 dqs80tg3jgce5week ;75gg7 c 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 arph;w+bbu)a4xnk6aq55 . cm ecpx n 2t0e connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are co .kp4m )b exa+5c;xu htqca p06w5n2bnnnected 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 c5)+anddw(xqd p q, ,sg a5 uigwfs27z-oulombs will pass through the identified resistor in wzi d2)g5p,+fuws,xd5s7d an- q(gq a5 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 in //jnp kef198 l+trr9a zy i9ggthe following simple circuit have the same resistance, which would dissipate the grey k9+r9 f 1nt9rep//g ajlig8zatest 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 through0nhxk vd4 y0:.nc26k:p lmth m the 6.0 Ω resistor is 1.0 n hny0tk:6lkmcph. 2m d04:xv 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, avy5 b:y bsu*eb:d., wjnd R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3. s,:b:b.ew5*vdj uyb y0Ω, 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 differen7w0po(e /kqket resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, andqp0e7( eok/wk 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 120 volts0dmj7exbp:( i . What is the maximum value of the current under these conditionped 7 0jmx(ib:s?

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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 resistan7vl1 a -l d 0l2uawx7rnaro3r0ce of a 60 watt lightbulb designed to operate at 120 volts?wav2dar03 o7n1al 0x7- ur llr

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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 res61xeio(c/ cimeg(( eb istor that is dissipating 36 watts c/6xio e b(em1(gice( of power?

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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 p*ge m,h7k ;grhress clothes is marked "120 volt, 600 watt.” In normal use, ,hm;kger7gh* 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 resistanyman g1,o 8;mwif6u 1mces could NOT be produced by a circuit containing only three identical 6Ω r,wmn6m1;y8 gm ofi ua1esistors?

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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 resistorb*w;o,qihr 1: wfxw9p ,lv 3ehs. Which of the following equivalent resistancrhwq,x1ef*,w p;wovh l3 bi9 :es 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 togetl7go2eu r s)j2her in different configurations. If all three resistors are used in a circuit, how many different values o gls7oje2)2ruf 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 resixfebqqb( 4r(o:f) r7-v s 5acnstor 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 identr : q(v n4rf7c-)(sbabof5x eqical 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 parall,b: jt5z8jjqwmz. .9 s8gb8 sf unrl1mel, the equivalent resistance of thjz.bq89w.j gts 5:8,zusl8bfj m1n m re combination is 5Ω . Which 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 sx tc: x,od;(0+xryhjhuch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wad;xtoxc:x+jyh,0 h( rrm 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 curre7p7ltmcrngwz. + t6+ pnt flows through a 4 ohm resistor that is dissipating 36 wattpl+c +w.7nt7gr 6zpmts 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 cdf43edfb at .cq)2t 5draws 13 amperes of current when connected to 120 volts. Itdf ec 3 tbc54).qd2aff 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 woumzit5 w9c v-.3/mdjys4 elhmah5 9/dqld it cost to keep a 100W lightbulb lit continuously for 1 y. diavh4 ltw9m3z9 smem-5/j hqdy5/cear 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 ofwi9t t;6qlwhd9ix. y. 4.00 A through a lightbulb results in a power of 24.0 W as6ti.t9i;. d9 wqlwyx hsociated 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 nrypaw455zai-0c9j aa 120 V circup5a 4cr na9-i5jy0w azit. If all computers are 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 resistorqk sq-qi 4 s8p 7-bh4raj8idc9s to form a simple circuit as shown to th-4 hq8is9r qbsiqc8- jk7apd4e 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 four resistou4j y 1dq8k9icrs to form a simple circuit as shown to the rigquy1j4 k8id9c ht.
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 swim 7*pd)id2ss wtch and three resistors are connected as shown. With the switch open as shownp*sd)si2 7w dm 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 thre:bv*r)efqte 1 s/)cuke resistors are connected as shown. With the switch open as shown in the diagram the ace1v e*:rsuqbt/) ) fkmmeter 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 re7gz k;rk.5 cgzsistors are connected as shown. With the switch z7z 5rgckg.k ;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 right, what is the ev ms6jpkf0;h0 n5/fqnquivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and nkf5m;0n0/hq 6 fvp jsall 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 shownhepj3; 01mepv to the right with resishm01pe3v p;j etances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conne f8z*m masu db;.zm(q(cted in a combination series anb( mq(muz8mfda .zs*;d 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 pm0 ixj,iy 8d,p6 kxd.identical resistors connected in a combination serie68y xi ,xpkmd0i .pj,ds 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. Whic9wc4rv1qcx:ksdi8j 4h bulb jcqvwk81s4:xi c r9d4 will 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 battermv-zmvr;6/ v;xc hj3(ae r4 6,fbfkssy, an ideal ammeter, a switch and three resistors are connected as shown. With the swfcvzbavf vse(m;r j6xs4;mk/h 6 3-,ritch 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, :jhaof o6 dm9,a switch and three resistors are connected as shown. With the switch open ao 9d,mhj:6ofas 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 tz;rxlfmilz/k)- 58jfq ,vc4 and three resistors are connected as shown. With the switch open as shown in the di/ 8j);,- lfmczrz tk5lxi qfv4agram 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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