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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 ele 7,9wdslr; 6dny-9 3lxq/wvna *spomyctric 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 diredwvsynn*x6q;s9/l97oa pm w,-l3 dyr ction 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 paralle4e1q frslfcur6i.s :h cq 1u50l, the_________each resistor is thlrf e0c16i 5q ss.: 4urfquch1e 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 b bi 3md/,p prvy-/y5sobk-8nthe thin filament wire of a lightbulb causes the filament to become white hot, while the dynp5,byiv/p s8-kr b b3m-o/larger wires 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 houseb6w8u6u 2ombb hold lights are being replaced with LEDs. LED is the acronym for which onemb 862bou w6ub 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 and cross-sectiona/ 1l xj ki0ckcmv;e--nl area A. It is to be placed into a circu/c ik njk;ml1v-e -c0xit, 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 wire II are made of the same material. Wire Ika859n8q ,i9scyy +z s9vh lftI has twice the diameter and twice the length of I. If I ha85,nisz c9vy8q+h f9 l9tkysas 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 i5gwb,27 hgf eof the same material but has twice the diameter and half thhi, e2gg 7bfw5e length 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 radi i(mzp5-rq )h:l,2 bhy ;tceol-:pkurus r. This piece of material is then drawn so that it is a cylinu-l:byopp , r2h5l q :h)k; trm-ei(czder 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 to make a gd u4xp(tuy ciz99 ,dfh47;ktbrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mog khti44dz7;ypdf,( xc9uu t9re 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 onybeum vj -uc; 6x n4i2rhp7:5f the same material. The length and radius of each resistor is:u4vxy6 pr-m5h2; :bcine n 7ju
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 batter-lnry) .j(f njp/6z+qt8jq ugy 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.” ju.lnr /tf)yq +z8nj6 g-(pq j 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 inat 7 dh9a:pds4ejsclcbx45 * :ternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mostp4dc5dt: c9* 4s h:b jaexal7s 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 righ+),d new0/ 4 xufvjh7kc*pu s9uew8r kt. The three bulbs 1, 2, and 3 - represented as resistors in tr4n9s fwh)kkpd0*euxj7,/uvc8w e +u he 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 curil0np,z:m7wj s p y6j)rent in all three resistors is equal, which of the following statements must be trueyj)0i7lm : ,6pp jsnzw?


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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-++im1wri tky represents a simple electric circuit composed of 5 identical light bulbs and ii+1 w+-tymrk2 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 follo-c7suexj ).8;laxhdjwing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and )8h7s.ajdxxulc- e j; 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 a battery. Bulb X is b rc;3w r6u2tjlrighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are trl263 uw;j crconnected 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 throug( istllr+v;d-6*v7ine9a6 cdut q7xm h the identified resistor in 5 seconds once the circuit was closei(+m* nuclvixt6dvq 6r d-79t 7als;ed?


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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 resfwq1o f(, ab ,hp(twrj7)t5i jistors in the following simple circuit have the same resistance, which would5 bfoi 71(jfwrtjw,)(pha,t q 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 nd;/p g-hr77h z o.egh/s.mqb.0 Ω resistor i /nqrh z -s.gg hbpoe/h;d7.m7s 1.0 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 are connected in s f-j)4x8rn yfe7 z8rwafj-u)g eries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω,-xf 4-8jygar8j)) zwrf7eufn 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 differenq m8ngc:m.41:ma .)i: vz k thdhhv(ist resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, a8q gi). tvzic h(d::4h:smhvnk1m .amnd 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 anl2s+l5 9qfy gid 120 volts. What is the maximum value oyg 9qi2s5+fll f 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 de 1o*mw*js.hoe fo 7sg8signed to operate at 120 volts7gsjh* o*8m.w oofe1s?

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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 re vqaf(n:b6u -(tjfu(f sistor that is dissipating 36 watts of powfn:( -fjbu (q(auv6t fer?

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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 cloty:my*kx8l zbhnhp*9wt0*;sme v;ee be4i3k8 hes is marked "120 volt, 600 watt.” In normal use, the currbke s; m y483;k:evp9nbh *yth *mleixz0 we8*ent 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 a cac9cgpw2.- o-xgi+9fvz s ;a nircuit containing only three iden.foiwa2 +9 axcp-s zgvc9n-; gtical 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 u nmq+n5g 1kh:of the following equivalent resistances CANNOT be produced using all three resistors5umk hn1gq:n+?

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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 i 5h;i4ke*j/sacu iykv 6;gb0values can be connected together in different configurations. If all three resistors are used in a circuit, how many differentkbci6i/; vahs gk0ei ju45 *;y 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 cf ija +)yjkph 8u:mv:nr0p:) tonnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series ny javf:p ) :0)uht+ ki8pjr:musing 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 connect5 fmne pxa)0hjp:;0xsosys.8ed in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resis fesn)ss0 0x;x5yoamp:p.8hj tances 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 hah+pt8vh b e4, +ovak8us a resistance of 12Ω when operating p++akvebhv h4ut8 8, oat 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 current flows through a 4 ohm resistor that mom/ek /(xhzexgv (*, is dissipating 36 watts of o(*mzmeg(x/ kxe /h,v 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 a r z5-2cu1v4kcxm3a k(v3vvz wmperes of current when connected to 120 volts. If the price of electr vk(vur k x 54a1m-wcc3vzvz32icity 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 lightbul ,odmg,q * 5qpw/skke3b lit continuouslyo5qe,s ,*mk pq/k 3wgd 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 4.00 A through a 34i;xzpezuf; 3 *(tuu7zc +fvb bwxy) lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents theuw* ytibz;)xp(e fxf u 3c+;7 v4zub3z 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 hjrw usw. q2q:pm c5xwafc7k b2u7)* 4six owns a computer 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 cs4ccw*:f2q7 q)u.b 5rmkw2 uhw aj x7pan 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 resistorztmz+(a7uk o dic0 jos25v (t60hz s+js to form a simple circuit as shown to the ri(50 maszhc+j7v26jso0td u+t zkz(i oght.
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 t4t9-c4m8tnfrjl -*zeyo k b 4io form a simple circuit as shown to tbji ctktzl4nmr 4y8- -fo*9e4he 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 battexhz6 y ;meo v4c(i7mv1ry, an ideal ammeter, a switch and three resistors are connected as shmhvc x;io4 vey1(m76 zown. 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 battery, an ideal ammeter, a si,/ dqb xc6zhyoaf (*qt c37zo8 ve(i)witch and three resistors are connected as shown. With the switch open as shown ic 7t3b8(ioi/q(zeo cx*y v) hdfa6qz,n 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 rwrn5xqt b06(7 igrspd1 7xn2vesistors are connected 27xrd0wtpr 516 ns bxq nv(g7ias 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to v9o6nej: zfsp9+ z,nzum:y5fthe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors :j6 ynuv f oz9zfe,z :ns59m+phave 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 shown to the right .r gd rntz7 bjcx*4,qd3gr:-g with resist*rx ggrq., t4g3cd7-j: r zbndances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ;ox +gt,r ee6hin a combination series and parallel ci o6x;h+ gt,erercuit 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 c/fjdhp 1w ,.d(mfrv7f ombination series and parallel circuit to ah 1vwjrmf/7f f,ddp.( 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, 4)6cy(p t mosg all of the bulbs are identical. Which bulb will be the brightesg6 y4ocp(mts )t?


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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 three resistorsn :p:qmvgzf7* are connected as shown. With thqg m:*zv: pf7ne 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 tw)5 a *vmpsx3j:bg; yswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rew;j:ga*)pst5m yb3 vxads 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 switc)t12v:.jrvqkm ) 9cf tb1hj e bodl6h0h and three resistors are connect0h9 :jc qb)re6.d1 lv fhov)tb2j1k mted 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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