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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, a) 5pgd 3*vsuvwt/ o 5rupkb)9an electric current 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 directio)p)5 /t 3d 5awsv pv9uogbu*krn 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________n bwi*g2b 7m x8-mq1dz_each resistor is the78qn*m1gz-bd w m2i bx 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 throughzr cww+,p fqg5b8ik;4 the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb r ;4fb8ricq5g,k+z ww pemain 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 *1kurhlz;b xlt a,)h1 replaced with LEDs. LED is the acronym for which one of theathr,1)bkz u 1xlh; l* 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 lengtp pzxk6 snt*qs9k6/h-h 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 qppk* 6sz6snh/x9t-k 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 material. Wire un1xa zlky84tp2ao nz- 3ta+2pj +d( qII has twice the diameter and twice the length of I. If I ha-(d4kjz2xa al1 3 ++q utnt8p2naoypz s 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 twice the diameter and halo1 k-rfzn z 2o7rur-w+klp)w* f the lengtrulo rz2rfk*1p-z o)-wknw+7h of wire X. If wire 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 radius r. Tyqc6+przk 8 m7his piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material 6qm8k+pyr z7cbecause 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 Edi prcg*m.m.2xnusqk d1;u*x: wson wants to make a brighter light bulb. He decides to modify the filament. How should the filamenckgdp2wm x. xu1u;* *qrn:s.m t 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 materia c5 h8f*jvyhbt 1)(tg16fhw ih4k5kol l. The length and radius of each resistor is: h5y1 iwfjgfb v 4thcokk 86hhl)5(*1t
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 oh 6l .jbyrfl-k 6mxa8y5;r4v of resistance R, are connected 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- j6 l 8f;a vyml5ry64x.hbkro 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 diagram has internal resistanb64zna 76x poinmj*a +ce 10.0 kW and the ammeter has b +npja6m4* xno6i7zainternal resistance 25.0 ohm. The ammeter 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 sz8g/6s9l 8f a b:hkplxhown to the right. The three bulbs 1, 2, and 3 - represented as resislfx b8 a/:9p h8lgkz6stors 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 the right. If the current in alts(f1rbk8 (*u /em4r hs a+ qy3*/oyprob0g sql three resistors is equal, which of the following statements must be truk1rqm+y(s fbo* p(e*t0b yh g84rsr/o3qu /as e?


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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 circuit composed ofj b+ieqn+9cc kpq+,g- 5 identical light bulbi9jqc-ng+e,+qb k p+cs 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 si489q/e.vv fkda*idd v mple circuit shown where resistors R1, R2 and R3 are have equal resista8dd*ifv/d9aeq. 4vk v nces?


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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 b9b7yd59/ybzlitu6 mr /4k t murighter 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 ond 7 9yr/u kiym/ tzbbt6l4um59e 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 0 +d3.nn)ci pn a6zjvm through the identified resistor in 5 second)ia.d c+mzn 0v npjn36s 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 circp(m 52 a ya4vqbxf +l45cgawa,uit have the same resistance,m5 ,x wy5q aagp 4av2(c4fba+l 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 m he64 h9x,yovthe 6.0 Ω resistor is 1.0 A. What is the powero h ,xy6vh4me9 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 battery. Suppi4-pr8;bcs *( nsmre yfdh;q3 ose R1 carries 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 i;; 3 c8(e hp*d-4nqbrsmsrfy 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, R2 andR3 are con : hem5)trx ,0 jhvqloj4g.*uwnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in hj omqt:.* u0xvrl,w) 4h5egjR3?

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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 an1sl ek9+bc a9upo 4lr(d 120 volts. What is the maximum value of e9+l4( 9a o1crs bkpulthe 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 a5hf,3;0w t.p5oj sxq7sezvhk 60 watt lightbulb designed to operate at 120 volte3sf.how5;zs px57t v j h0qk,s?

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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 5 )*16gmcwd q6i jgwks,/si b17w dnbga 4 ohm resistor that is dissipating 36 watts g6g 5nsw/,iwdd c1s7i6m gq*bw k1j )bof 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 ir8de g4*p u5qvvon used to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it84gd*e vpv 5qu 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 coulnf0 xnf*a ilba+gn,cbf;y g..3-pu2 xd NOT be produced by a circuit containing nagff3g ,c;. ybun-0fi bn*2 xpa+.lxonly 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 follow:sc5v c hpq+6gcce54avd2+dring equivalent resistances CANNOT be produced usicr5vd eahs2:p6+ 5v4 cd+cg cqng 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 differ9c fiz p f+/(0rzvivjm:*cexd/-q*lm ent configurations. If all threjf(/pl* -mz/+*9xq i: fzmcc rv vd0iee 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 connected to a battery, a tot 0v.xuk; yo.yeal6*plo *7tnh al power P is dissoy*u yol.lh nv 6ta7*x. pk;e0ipated 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 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 2)jvhm;k0 v fnconnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements v h;)vj20fmkn 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 resi sjont-/(-le : motl o*pl(/,bfh1iurstance of 12Ω when operating at 120 volts. What is the minimum amount of ti ijs /tfl ouo- pe,(*(-:o1 rntblhml/me 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 currei*rdt,di/ e ,ynt flows through a 4 ohm resistor that is dissipating 36 watts of pei id/dy,,r *tower?

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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 heate5butr; c, 3 ipp0e(akq-p l(nur draws 13 amperes of current when connected to 120 volts. If the price of elecrb;(0eu(lqp, kpui5tn c p-a3tricity 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 /nkq z2b- iuwf6si1qwily5.1 much would it cost to keep a 100W lightbulb lit continuously for 1 year at a1 6 i.-1iw2nsuw l yikf5qbzq/ 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 t gk*k lch2,w9chrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the fol*gk2wk,l9 chc lowing 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 coszel1k eh-+z 8 gke9;bmputer rated at 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 ca+h9 1kze;zse8kg b-len 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 simple circuitkc.z aac x0f00 axkzc.0aac00f s 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 is connect owlsr;9r8q +dsuu; nn5f5d( ved to four resistors to form a simple circuit as shown to the righunu+s59rrn8o dv;5q lwsf; (dt.
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,6ov9z grqbw5 lo2a00 )ujgrm+ a switch and three resistors are connected as shown. W05r2jbz6lgm9vo )ao0gr qu +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 batteryvowz7 fq-2j e ul,:p7x, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrl77puqz 2 -je:x vow,fam 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 id .74gao2m6i:kfy ,vrro eg rs;eal ammeter, a switch and three resistors are connected as shown. With the switch oprf.42:r;v rse7k,g iogyoam6 en 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 equivalent resistance7vkw.gpcp6:h tr+ ;z7* fkbwk? Assume thpz+ r: wk.*76gphftwk c7;kbvat 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 tbqqm lt-.(ib7he circuit shown to the right with resis7mblq(. iq -bttances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combi+8g dtb)at ;j47mu ttonation series and parallel circuit 4mj)utt8 oat+g; bt7dto 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 resistc9apdll2 9r t,x0rlk m,50nc pors connected in a combination series and lx,pn2 cpac 9r,lrmdk5900t lparallel 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 i4e p;d*du2x 8f 10csiswna s dxg,hoa;f80of2dentical. Which bulb sa8fo 4; ewa2;fuosscgf,d* nidx18hdxp002will 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 battery, an ideal ammeter6x g7k;q*a3tvry i)w f, a switch and three resistors are connected as shown. With the swit3wqgv 7f)riykt*xa 6 ;ch 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 switwlz7- h,k+i:g ji1nlvch and three resistors are connected as shown. With the switch openik, nh7 1jigw+z-:llv 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 /4xx;kby* /agvu9,ctjr i k5tboh ;3fb.b wi.and three resistors are connected as shown. With the switch open as sho fyctx.k5r*kb3,iw9;ug; hb4o.i ajtbb/vx / wn 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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