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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 a6 xp7g7b1nzjuw jr3xlve63.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 direction of the electric field throughbvre73guj1637wal6 zxj. n xp 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___quhe /) -2l+cojl 0pxs______each resistor is the samelp hjso+/)l -u0c2ex q.

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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 )nyqi;,szu- hw/ h 2jsfilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coo;hq-u)sj h/ i,ws2ynzler. 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 is the fe:(fj0 w+ hxdacronym for which one of the followingx(+0dfe whj:f 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 cross-sectional area A.sj ptf:m)us8c.ayhz. -8 4itp It is to be placed into a c tt .pcpfjs8) 4zua:s.ih-m8yircuit, 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 wirok e:,;am emzigr94s *e II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has reskz*m 4: rem e9soiga,;istance 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 madloi,45 o1x ycdph:a:ae of the same material but has twice the diameter and half the length of wire X. If wire X has a rac1:i5lo4 dy,p ax:ohesistance 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/5d nou kyj2o) radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happenso)2no5ud ky/j 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/ftc d*:r 6fhw9zv8g p to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givevtwgf :dp z/* 68cr9fhn 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)z gw-hy06ek c the same material. The length and rahg6y)w k-z ce0dius of each resistor 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 ofi aeb((gc -/ix 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 is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resibix (-c( /eigastors?

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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 diagra;wptx zs8j fea86qmi1h1 1lue s2a53km has internal resistance 10.0 kW and e151pux6a1l3sehfa; i q z2t8j 8ms kwthe ammeter has internal 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 shown to the right. The thpwz 7 5+az5b dpzqcob+3g8zu 7ree bulbs 1, 2, and 3 - represented as resistors in the dizw+b8u 55bq+zpzgda77ocp z3agram
- 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 electricl/9z i3 8 xhts4tx4i1;qtadvfal circuit at the right. If the current in all three resistors is equal, which of the following stat3ldt i981tf x/qxz;i 4t4sahvements 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 simple e(ezpt/ ;xqr(jbl5hs0 lectric circuit composed of 5 identicalt lx( s5(b;jp rze/h0q light bulbs 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 st..btm,/b z5a-m8zsvrea+ u+pmz f1cz*g:mdu atements is NOT true concerning the simple circuit shown where++ a 1cz 8vu/bz zmbummd ,zmp:*-5asgt. e.fr resistors 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 series to aq.s lzr3kvwtb12 9;bq 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 followwl 2k93z;.sq rtb1v qbing 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 identified resistp)o u cu),,smrtd,k1ap:;8 s d vx4rcyor in 5 seco,1 tp:d)ou ,4 ass)r; pukxmc y8cv,drnds 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 circuit5plwlxm / j)k-5 yqd-l have the same resistance,qwy5 5p )-mk j/dx-lll 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 the 6.z v .1ba1stxr+0 Ω resistor is 1.0 A. What is the power suppl s vx1bztra+.1y 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 uy mg+q6a9-g rp5a9.4tabtj e R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates ea5g .baygp+tt ma99r6u 4-j q6.0 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, R2 andR3 a)5ue: ,yjii0d ypeco8 re connected in parallel to a battery. Suppose R1 has 2V acrosec5j )io8p, y:y e0udis 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 is rated 1200 watts and 120 volts. z1) g(a9iw vsk What is the maximum value 1gwasz i k)v(9of 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 designev p cpb4rm.r+x*2lvsu 9xv2x;9alx,ed to operate at 120 volrx2x+cp.s9vu;x2v mlrlx4pe *ba ,v9 ts?

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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 oh8vzj 9-z(zd2m ai yt5um resistor that is dissipating 36 wattsj8z (95 iyzd-tvuzam2 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 usek , jdz8ll;n6ld to press clothes is marked "120 volt, 600 watt.” In normal,d njl6 8ll;kz use, 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 resistancen/daj3h vu:n+ s;xc2swi ,6wds could NOT be produced by a circuit containing only;dw d+sx,3/ icvnhanj26: wsu 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 resistorsk4zlg4ndvm/:. my5 gz. Which of the following equivalent r mnzg 4l4m5.kdvg:/zyesistances 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 (qpe7yhpp+p )4t dfr4connected together in different configurations. If all threep)qf+r7epp4 p 4h(t dy 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 toyersih:30+ipg00 v3x m. jut+ip ol,s a battery, a total power P is dissipated in the circuit. How much total power is dissipatedh:3 y3ip +eos.vg st0,m 0ulri0pj+xi 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 connected ibpt n au7e-v9n5snn3-n parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corrpb-3e-9n5 utan7n vs nect?

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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 ihz2fft x536je t has a resistance of 12Ω when operatingz3 ftf hj5e26x at 120 volts. 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 curre 0garrv1q te09nt flows through a 4 ohm resistor that is dissipating 36 watts of powerqe gav019r0tr?

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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 cvb ;) 5b4fvi*yq1gez8ubm 9kq yq (.1 nu7gtg120 volts. If the price of electricit)zkv(b. qgiuc* 57 n qg;1btbygu49vm8fy 1eqy 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 light7d0w: fcskn)e bulb lit continuously for 1 year at awnc k f0)es:d7 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 lightwwfvoc8 o 8+y+bulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best c8+y8ww+oo v frepresents 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 afp. hx(hf bip 6,l,y0in a 120 V circuit. If all computers are plugged into a single cir,6a(hxifpl 0f, ypbh .cuit 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 resk(fd(mfqtljj8 zwlcp,,r881 istors to form a simple circuit as shown to the righ18 jd mqrlckf,l8(w8(f zt,pjt.
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 resistors to f gbpikk ,v75z7ey4 u/a+cp .roorm a simple circuit as shv ke+/,aiczg 4y. 577okurppbown to 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 ammm yzxgfud -- 9v;/m( n8foiate)i-hl/b m y4:jeter, a switch and three resistors are connected as shown. With the switch hyf- avjbmx(- mm ;z9g/-fu/y:ti48 noeil )dopen 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 battery, an ideal ammeter, a switch and three resistors arei e22zdf,u c5e connectedie , c2zefd5u2 as shown. With 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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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 ra 4f/,s5epw;rqoo lh1 esistors are connected as shown. Wiw,phroflq sa;e/154 oth 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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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 eq- 5l6a i()ju1oabmw h*oo; kwruivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three-w 5 b;(*uoo aoi1w6lmka)hrj 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 shown1cagg4 l0*qzp to the right with resis0 p g*1czgl4aqtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic65*/embw n, gwqbbn4 dal resistors connected in a combination series and para,5wmqbd6b*n b g/ne4 wllel 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 resisxtr8ee,8w 1rjf iv5mz;g2ht.op pd0 ), 5rjpltors connected in a combination sew h m0dvrlgpr,,i2j 5 5xt. ;re 8pt81o)zjepfries 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 ofhja) -go yzl2; the bulbs are identical. Which bulbj2- ;gyz ao)hl 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 battery, an ideal ammeter, a switchzvkpc4 b o2x5ibb6 65dn9rq u. and three resistors are connected as shob66rc pq.4b5dvn9bo5x2u izkwn. 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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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 a/dclg)fkt e12vvr,+l re connected as shown. With the switch open as kl /lv1gdc)+vfre2 t ,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 4p:t ubvs*gf:, a switch and three resistors are connecus:v:f*t p g4bted as shown. 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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