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习题练习:.Resistor.



 作者: admin发布日期: 2024-08-22 15:34   总分: 50分  得分: _____________

答题人: 匿名未登录  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 currezxo 0- m 7x5 npw*lanb6/dpr,tnt 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 ele6xrxnpdbml0atw/o , -*7 zp5nctric 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 ijzox)die x:v f31z2e /34 v )rutxw4lln parallel, the_________each resistor is the same2eex:)vv1iluzdtr j olx4)/3xwf 34z.

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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 w/om1gox / zqvg9 lty-v3 17iqdire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb reyt qg / 7dqzx1-93vogov1/i mlmain 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 replace q1m-d m+qpy7md with LEDs. LED is the acronym for whicm1-dqm y q+7pmh one 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 graphite resistor has length L an425lp dbzq8kh d cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that th48p 2bhdz k5qle 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 II are made of the same material. Wire II h mdaa*:-k+out5 g ix9eas twice the diameter and twice ek:a-5g*m+txiad u 9othe length of I. 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 of the sa)9xioe l0ex 2yme material but has twice the diameter and half the length of wire X. lie0oyxx2 )e9If 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 radi-q8yq*gon:reti3 p:n w h*q 3uus r. This piece of material is then drawn so that it is a cyl qrq3t i-pn:8gqen:o *w3*u hyinder with new length 2L. What happens 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 tdyav 4s)qyongd9 3o m)406lzto make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order dgy qloodsa30z t94)vy64 mn )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 x8k:gu+9d5 8ksw jsgalength and radius of each:gka8 s+kx59 wg j8sdu 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 of resistance R, are connected to a battery in the yy6 9xa97l x9oqbfva2e 8ub)zfollowing 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 res 9ab u9be6yl9zf oxvyq7)28axistors?

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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 tf d0r i4n)c0 oi6lx ou(w+jnu83)fdp in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has intern+0)wd4jxcult6riufd(0nfp o3in) 8o al 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 c t d 5/9) kzuaeft-om-a820tarclisr) ircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistoro8ulckt ) 0irdt--fr9 5m) sea/ ta2zas 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 th7u m5p ny2*kkja1 pa4ve current in all three resistors ivumnkap 4y57p*1 aj k2s equal, which of the following 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 circuit cxec1hd-07qnt a7g) mr cxdx 59omposed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or buqd) x-e th 07rdg7cm9xca1x5n lbs)
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 simple c7illofhs h/* 5ircuit shown where resistors R1 5*hif7lls/ho , 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 connectedr,fmvvba.gsw mz ,9(c7yp5g 1h((cio in 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 represents what is observe7mb fi(,rhz,g y9((1acmpco5 .gw vsvd?


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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 throuod99 ;rquplz5 gh the identified resistor in 5 seconds once the ci 9z5 9pld;ruqorcuit 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 5 1 ) in(.rvx7 ,plsaduc ooyuyya*,r) tggs+) the following simple circuit have the same resistance, which tp +co lgidyn)u,xg5.arys s*7)u(,va1 ryo) 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 ciqbp tfzx *m))0rcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power 0tfq) )b *xmzpsupply 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. Supk a/i finn 6rndaaf2(b k13*t9vljk2qqv290cpose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of p0t(1qvnjf ac kk 2vbalai*k 2nq93r/nd2i 69fower. 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 are connected in parallel to a batc 8t+3e/jxm*7: f /dzygjrjvo tery. Suppose R1 has 2V across it, R2 = 4Ω,j mcft:jorjd/zv7e* x3 /yg +8 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. What is the maximlv*gtyduw 1 :-um value of the current under these condit1 * lw-ygtdu:vions?

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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 operate at 1e/ bs- le6(cwo7 yrw,y20 vo,esy6lyoe(r7 /wc - bwlts?

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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 currensixtd ):* *oext flows through a 4 ohm resistor that is dissipating 36 watts*exi)dx *to: s 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 press clothes is marked "120 volt, 600 watt.” qmy(qq rsi/) j5h 8) xunzh61yIn normal use, the current in5 /i hqh8z)sq6nm(q)xr1 yuyj 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 jlpp/.v lg79sqs/n z1*3jxkrfollowing resistances could NOT be produced by a circuit containi r plj p/vn 9sxg*k73s1q/ljz.ng 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. Whichqq l +. zi:82djs 9wyao7nrew jxh:8x1 of the following equivalent resistances CANNOT be produced uj8anr8jww9 o1 xhxd:i7:s+qqezl.y 2sing 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 byem*ini ,e(- cjm45q au2u-eie connected together in different configurations. If all three resistors are use- uiey 45a,i2qc(ujnme *m i-ed 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 total power P is die.yzpzzbsdo3bji 3ef x/2,3, ssipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in s,zyo/zeidbpexz, fj 3sb2 3. 3eries 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 i7q ri:nbuo-c3b 9sdfv :r(:wtn parallel, the equivalent resistance of the combination ifd9s7cn: ouwr3( b rvqb: ti:-s 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 resistatzj6 w7+ us,2) uqjbrhflg; 2jnce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg o 2fqu6;2g wb)jlu jsr7tz+hj,f 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 d;n t1 cgdql-b4b0 /ox-5ry h1crr7fc6 yw0t gohm resistor that is dissipating 36 watts of prg057t -4co h1xbn f0lb -y1t;/wdr c d6cgyrqower?

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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 hea7xii(a o2 y3kkter draws 13 amperes of current when connected to 120 volts 2a i7xoyk3i(k. 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 wova+auqu6ew oan ,rm:u * 45-bpuld it cost to keep a 100W lightbulb lit continuouslyq ,a-+vr 6u5:4auwu*ap mbeno for 1 year 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 of 4eguy b-np-l9 ;y 4ejl:.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which ou-legj4le 9b:py -;nyne 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 rat xt gq;18o8j6 ilb0l08k lfhxred 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 nt0 x68q1krxblg8lfli ; 8ho 0jumber 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 resistors to form a simple circuit bo x: jzj0qxr4v(84jb as shown to the rightqj 8xo (z0bxbjr:4j4v .
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 form a si bv3w zw;(6i,3ifj2 3ghbglppmple circuit as shown to thew3w2;gg pf6zi b ib3(lv3,jhp 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 ammeter, a switch and three resistors 5)k+ew k insc63ui8tjare connected as shown. With the switu5 k68es)cjwn iit3+ kch 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 battery, an ideal ammeter, a switch and thredqv iv.-o qowzc upg6;m4(.h 2e resistors are connected as s v(q oh.pcgd4m.o-wu6qvz; i2hown. 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 ammeggw3ff,p /7jdter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 w7gp, dfg3j/f 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 shoa qzc q,a4hc )q*td99rwn 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 identical resistac*,qaa d rhqtc)qz949nce 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 shown to the u,6jdckdw:8i right with resistancudc:i 6,kjwd8es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 p5w/j/ 6jjp y 5qrk fmlyx03.ycombination series jpf /ylryx6m 0jw 3j5ypq/5 .kand 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 sju 0-x flegqn l6m ut8e2n3ekoz, .2t,xs0cs3 hows five identical resistors connected in a combination series and parallel circuiq e-,skg l tlce 3o28u3z06mxj,f2sune.xt0n t 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 dia,xa)c yly2 4eg2grd thi0-x :ruxgl3( gram, all of the bulbs are identical. Which bulb will b2g)a4 l,(y2u yxxci drr0h-gelt: xg3e 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 swzcnztqkkf c8 8.3 gy;x-7c9ucitch and three resistors are connected as shown. With thgnkqz-uk 3cc8 ;ct7 c8xz fy.9e 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, aueq1. f/8b;thmwqf-i7,fd pb 7isj 3e switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetiw b;p-f .f h3iq/fseqbe8mt,7j17duer 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 and three v(e xi4ws ale/23f kh2resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeksvxhlief a/242(w3 eres.
When the switch is closed, what would be the current in the circuit?


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