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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 circuiiw i;0oi,leb8q.e b z;b w+gz)t shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best zbb,ewg8; iiezoq;0 .i+wl) b 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__m i;(blf a)ug6_______each resisaul;gi)bf m6(tor 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 wire of anwkq ; .r4ce,v7pew,jni)5 ,ggqi)zq lightbulb causes the filament to become white hot, while the larger wires connect n5g)7wqi zjw;, e.ckiq,,nqpgev )r4 ed 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 i*ne) v9mqf yzr*lg2 ,d5f3zoare being replaced with LEDs. LED is the acronym for which one of the rm*y*v39d5,ffze goz q2l in )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 cl 5ngik/nh5w( ross-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 1/25h/k lin ngw5( 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 t8s+ 3qgy ytg a+0;krlwhe same material. Wire II has twice the diameter and twice the length of I. If I has resist0t 8gg+ykr3 a l+qw;syance 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 e7ji82*f4yw3srjytgmaterial but has twice the diameter and half the length of wire X. If wire X has te w 4jjf7*3y28gs iyra 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 piece of mater;+.5+ riv kn*zor -cjlwz2-r ll y5zuuial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this maternz+z+r2r;v-u -zo 5l*kywrl .lj uic5ial 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 wantsfqxxe,b ll9ug lule*5-t5n:2 to make a brighter light bulb. He decides to modify the filament. How should the fil:ul5fl u-e2ell59tx *g nqxb,ament 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 mqoym1omkm* o4u) :l3made of the same material. The length and radius of each r14ko3m*lo qy)mm :ou mesistor 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 v +1nlhbv (iei3i(s 2asggu 6+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 is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resisto 2viv3uslih g++a1si bn(g(e6 rs?

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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 resisru(dbu 9s: xb8g59ywmtance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mu(sd59u g:9 bxw8rbmy ost 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 comojrh1 9t7k t*skaorsfp ev04 ,*bd9/qpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the df9s r*oabqt0vsporjk*ht741k, d e /9 iagram
- 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 all z(wdw9 k:u fx2three resistors is equal, which of the following statements must be tru u9wk :df(z2wxe?


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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 pe p j/xu(,d:x :gtr8htwu;r/of 5 identical light bulbs and 2 fr8 d(prj x/tex/h, u tp;g::wulashlight 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 thip z5vyvv,ie t47v /1rue concerning the simple circuit shown where resistors R1 5/h, 4pyievv1 izvt7v, 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 inaypmm 2t67oy+ series to a battery. Bulb X is brighter 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 reprmt +o76pmy ya2esents 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 0)zw3u7s g l+iw 0mkt5j-ulf g will pass through the identified resistor in 5 sec03m0lu+ jt iz-g)fw kwl s5ug7onds 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 tbt f y25l- msb3gsv*2bhe same resistal by35bst-m fg 2v*bs2nce, 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 currem 3pk vf-,zqxx(t)s;t .m bh e.83n.qqyj)t apnt through the 6.0 Ω resistor is 1.0 3j ,)pzxa ys-tv;q(.h8ptemqm .tbn3kf x.) q 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 ar)jwz jt4vhe0 8e connected in series to a battery. Suppose R1 carj4h 8tzv 0ej)wries 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 resistorst y)ykoca wn871d,q :a R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the n w)d7at,:y1ayko q8ccurrent 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 wxwufkyb /)01v)6f ezsatts and 120 volts. What is the maximum value of the curre0ys6 eb k xz1)fwfu/v)nt 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 designed t5 7jqg (cfdw/qo operate at 120 vf5(7jqw/c dgq olts?

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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 psahr i*c1sh e8 t1+q5that is dissipating 36 watts of powi1rphahstc + e5*s 1q8er?

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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 c 7h xnd*1l3bftlothes is marked "120 volt, 600 watt.” In normal use, the cu 3blxn*7 th1fdrrent 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 could NOT be produced by af k2seqg 84:ze circuit containing z f4skg2:ee 8qonly 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 equr2j8s d m9e7d/,5hpflm0g rxtivalent resistances2j,mmt ersdd0l 8f/r7h9p5 xg 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 diff bhwho9mv)emz,8q.g +d 0:5mi :khjgierent configuratio5,8gihie ko)q9gm0 .dvw+h::j m zbhmns. If all 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 connected to a battery, apzf )mjn* wzk:ixl1;i:9 r ag2 total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n ik2:: l xm*)agznizrwf;ip 91 jdentical 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 p+ qv.ohqn: x jve.s4 5,yetvm e*w,m+warallel, the equivalent resistance of the com. e.+jy:ww mv,4h,qo+ xv eenvmq5s*t bination 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 such t8kmexm -e)azl 1 (i5yp3ox*llhat it has a resistance of 12Ω when operating at 120 volts. 3l( yez81 ki* p-eox5all)mmx What 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 reso-)afxe1zu n/istor that is dissipating 36 watts o 1onza/fxue)-f 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 to 120 volujh9ox4j:.gxdp5 +tsu3r m8 fts.g f48x+p5m: ux udjo9s3tr. hj If 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 w85u *,bib3dxij/j wv z :o.ymfould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate jf wb.,i5v:3y uxjdi* mo 8/zbof $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 litda)glnwt r+hju ,6):p9s fgsg 27u6sghtbulb results in a power of 24f s2t l:,+n hg6)gw7du)t ss6 a9pgurj.0 W associated 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 comp*s07 9fju4xq2ioqvq d uter 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 iufq0q d79io*jqx42 vs s 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 c 9kop/ kx3z8uyonnected to four resistors to form a simple circuit as shown to the right9o3y ku/px kz8.
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 batt pr*1 .b j);eqxk3tzbgery is connected to four resistors to form a simple circuit as shown to the right. ;rkb*bqp.3jz)t g1xe
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 res/l1ioksj*jz;l dg*2i istors are connected as shown. With the switch open as sh i;ilk 1ojg*2 sldzj*/own 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 swpf)zm2j b6bxzn875t: yhq kk pz( pf(5itch and three resistors are connected as shown. With the switc65( ):j5p2y qpbzmn fztpb8z fk(xk7 hh 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an i+pk 5du0rumf+ d3db;u deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampedkrdu 5;30+upbdmu+fres.
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 righbi n 6fbi69y4r0ob4ymcbxp0 7t, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identpyobbbn 604b 0ic4if 96mx7 yrical 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 re,kzp7 rgc9zt/sistance of the circuit shown to the right with resist 9p/tk g7,czrzances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 4 nky7c d0lrm: l:8m*gcbskr95(gkjf five identical resistors connected in a combination series and parallel circuit to a voltage sourc l9jcb*:57 g(d:40ylr8sgkkmk mrcnfe.
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 connected in a combinat7k ms)xbgrxuy2i37 y 28ur/ukion series and parallel circuit to 22)8ysk7kuy 3 r/muxrx 7igu ba 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 identicpw:g u8ed a8yai 0 zzl/jr7-2hal. Which bulb will be the brigjh2zp 8e0ir7 alz8/w ugda -:yhtest?


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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 thrclxce:8x)qb k0w2f dr7,q alnu.-hc5 ee resistors are connected as shown. With 7:r x-w e qcx)5ckufb a2l, .lc8ndh0qthe 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 are conni o7 ersbkeud o(u+-08g yl3;qected as shown. With the switch open as shown in the diagram the aml+g bes uo(eo0 8-ui3rqd;ky7meter 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 ideazdp7 b9gk6/* ip i878-f iztm7gyxc gil ammeter, a switch and three resistors are connected as shown. With pc gi g/g8y iz7*xtzp8d7 bi6fmik-97 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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