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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 resistor 4+ 1lyrvvb pz7gqjj:;connected to the battery. Which one of zj47v p:vbjlgy 1rq+ ;the following 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 parw, q. zlm;h1uiallel, the_________each resistor is the s1;mq h wz.lu,iame.

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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 lig wg :a0cias09mhtbulb causes the filament to become white hot, while the larger wags : 0mc0ia9wires 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 +w- 0pzesfy6/tav 9 kqp/e ee0are being replaced with LEDs. LED is the acronym for which one va/0kf+pz t epw9/y0e-seq6e 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 graphi f ti:dyac7x s2r5elo9wx 0/q,te resistor has length L and cross-sectional area A. It is to be placed into a circuit, but x2wie0xo c r9y 7/5sfqa,:dtl 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 wire IIc3:80a8g 60 l2ksas oxzst zoh are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, :8 sog8 skacz6osl00ahtz x23II 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 mlvf v wn ;f(2 jwsv+8*9ptgfta.4ujt;aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wpfgw;( j*s;tj4 t2v vf8l vn.9ft uwa+ire 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 lu lh .4 l/.ecn .2oyd6n(fd2,bqdrf sbength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this process?l4f , s2.l 2(o..6eunbbnh/qdr d cfdy

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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 lightzd3e fo9c59l8 sg8jb o bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulcd9s 3 ogz58fj8b9eolb 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 a3/wgmhha p;p;re made of the same material. The length and radius of each resistor is:h; hwa3pp/gm ;
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 battery in the 7lra /gxu*tjq5o s)r 6following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This sutjs6 7aoq*x/l5g )rret 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 accompanyingr18msbex y8dqc*i-i h*k7(6 1cyi cgo circuit 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 rec*b(syix h ycq7 g8oir*mc 116 -ikd8eading 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 ru *9vq it6we;ezy hkeo.op*tyb7 7o+9ight. The three bulbs 1, 2, and 3 - representedbe6 7u;wyqvhpkoo 99tt+y e z7e*.oi* 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 simplee/s o7sjqk1 rj *9lg5w electrical circuit at the right. If the current in all three resistors is equal, which of the fol7e9g 5*koslwrs j/q1jlowing 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 simple electric circo,tqjm) nv89s5mj i*uuit composed of 5 identical lit)o8 s,mq j5*9u jvnmight 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 statements i 9p 7un(it4-cetfk p0xs NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistpcx 0(7- t e94iutkfnpances?


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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. Bud-p ;tm ,omo9 kojn3(ulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connecmj utd-kno9o(; ,mpo 3ted 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 identified resiqxj0-2b 4+t tsg+ +5o ggdz uogs-hro8stor in 5 seconds once the circuit was clo5 8+0z qutd-or+gsbs+hg24 -t ojggxosed?


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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 cl.0h+cq6r ;/itl0soqm 3f htgircuit have the same resistance, which would dthmshic ;+ g6 q00/tqlorlf.3issipate 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 s fmr n8z2f z5n*l :/y)*pxzoqyp7:codiagram, the current through the 6.0 Ω resistor is 1. xp s)nfz:c8*oznqzof 2 l7*r5yp:/my0 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,jc2isupx et,1-g g ,.gu. i5qw and 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 6.0 W of power. What is the volt.u .gp e,5xsqj- cw1ig, giu2tage 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 resi9v c;jzl.l3 tn6j hdu6stors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, z9j jdht6 6l3;n.ucvland 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 w,on -d9bgtuwd9 6 ayk0atts and 120 volts. What is the maximum v6ubwn0 yt9od ka-,g9dalue of 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 designed to opid6m; xknz w3h51f ya(q2ry*herate at 120 vol5*h2mk zi(n1xw3 y;yqra fdh6ts?

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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 d6g36vndjqdi qee17t ;ywlm : 8issipating 36 watts of p3l w;6dtq mvjn1e6edgi q:8y7ower?

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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 i ud0vkm,n9js5 ron used to press clothes is marked "120 volt, 600 watt.” Inkvs 5dmu0 ,9jn normal 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 resistances could NOT be producedfffv:v./h ytd;y ir83 by a circuit containingfv;yfd:fyh8 t. ri3 /v only 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 fols9+h)e m tuv6plowing equivalent resistances CANNOT be produced using all three resistors?t9mevu+p6h )s

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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 dif4mm nz;3feopd3g i9 1yferent configurations. If all three resistors are used in a circuite;z mdm 3io 3p4yn9gf1, 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 total power 9qg . w) ey*byky.kxpc02uu6a P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in sky6yue92kybcqp a.* w0g).ux eries 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, havixu+0v8;zm tqulbcps d4cftk / y/g++:ng resistance R1 and R2, are connected in parallel, the equivalent reu m ky4p0+;:u +x ls/qt+/tfd8cvczgbsistance of the 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 such that it has a resistance of y8jpel7 (yl0j:zet;u 12Ω when operating at 120 voltsu8jyej0l y pt(lz:;7e . 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 resis ucq4gfgo1+5 ytor that is dissipating 36 watts of powe4 cg+yg 1qu5ofr?

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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 vol)7 ksc( ct7w hkooz e;((dbpp(ts. If the price of electricpb((oz7wt(o ecc (;ks hk7d) pity 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 lightbulb lit1vy */z, (bejwn ir)utlenn9) continuously for 1 year at a rate of tn,* ru9ylnn/(bve z)j wi)1e $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 results in s *sn6 *dtcr+r 9nl gz9zq+am7a power of 24.0 W associated with the bulb. Which one of the following choices an9mql6t+z9r7 z c**gr+ sndsbest 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 500d32:/4iyeoeg fyltv) watts in a 120 V circuit. If all computers are plugged intoedog3ei fltv) 4:2 y/y 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 resistosiwns+-:0b 5h8fv 4b2rj fnfxrs to form a simple circuit as sho452j0rf fb- fhi s:nsvbx n+w8wn 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 3c9hh8urvnhc *e f: jc. w-kg4is connected to four resistors to form a simple circuit as shown to nj e*hr cuhkc.f w:8439h-cvgthe 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 ag5 x ncqu5e 57x.p 5du0yvfku6mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the 70xxu6n5pc5d5g.fqu yu v5kediagram 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 ammeuied whnpfs26+b /x.p z ri,n*m.f*r(ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am2xr+ hps. iren.i nd, mp6w*ff(u*/bzmeter 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:w ta6tk7 bwi1eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the awi7bkw6:1 t tammeter 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 ,t mkfwdf/ijr. 7*z z7 shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identic zffr*j ,iz.kw77mtd /al 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 shown2y (1t 7 ( rpalyc4ube0i,sdwhs4ywf8 to the right with resistanc w7w2h(84td0ialc1yp esfsybu,r(4 yes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fi x*wxm2ysdlsya5 i *-6ve identical resistors connected in a combination series awmy6ax2*i-y5dsl*sx nd 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 identical resistors connected in a comb0ol.n6:m hmlk9;bd) nn0 zqscinationq; zdnn9 losb.k)6 mml0c:h0n series 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 diagajs 0t pj2)sb mm8,k-nram, all of the bulbs are identical. Which bulb will be the brigbs-mjk )n 0pj28tms,ahtest?


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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 swi y/eb ijt g)hm+*ks4zoj)zq46tch and three resistors are connected as shown. With the switch open h4zsj kt*qeo z)j)4 /mgi b+y6as 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 thrp9 wap- luoh)-ee resistors are connected as shown. With the swi-u )ophpl -w9atch 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an z*zep;: n5 o3avz4 pvfideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammpaz53z p;*z n4 efvv:oeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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