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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 isr66 6bh)zfv in the metal resistor connected to the battery. Which one of the following choices best des6sf hz6ri6v)bcribes 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_________each r xh- ihsh h)*6jz*n7kdesistor is the sn z hjh*xs)6-k 7h*idhame.

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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 thr sbc,),n3q5grkqh vevz z n+0/ :4trclough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becausrtq)hnc le z,bv405,3 s z:nq+k cvgr/e

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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 hc okrw 8hft6)5b xbw0k5ii63jousehold lights are being replaced with LEDs. LED is the acronym for which one of the following i56wcrk65)fihw30 jot8 bkb xchoices?

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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 reel/ j hng,zol;;7)a gksistor has length L and cross-sectional area A. It is to be plakg; jhg,/no ) ;lla7ezced into a circuit, 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. Wigk4541wls/dje* cxb gre II has twice the diameter and twice the length of I. dj w4 b*/g5 ce1gx4skl 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 same material 55(8y+;pkq sknio tcv k+0 nhfbut has twice the diameter and half the lengin8ph k5+fnk k(scvy 5qt0o+;th 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 radius r. f 6syxcn02 i*4g vr-tdThis piece of material is then drawn so that it is a cylindd0sv- t*nxcfy4 g62irer 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 makeh.y ehc5 p//rwnt);ap a brighter light bulb. He decides to modify the hrwt);h.pen/ ca5/ypfilament. How should the filament 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 cylindrica+p md )9mjzzo-l resistors are made of the same material. The length and radius of each resistor9dzjzmm o) p-+ 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 consut fi /ch/g9(nected 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 arr hguif(/cs/ 9tangement 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 accompanigh 2v.m o/)3gznk:nuying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistah z.k3uv)g/2m :goi nnnce 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 hy8u qp(gyyrb7l6+1 e the right. The three bulbs 1, 2, and 3 - represented 71yy8pu(e ryh lq+gb6 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 simple electrical circuit at the right. If the current in all)yqh3-dhm l(i three resl qiy d3h-)m(histors is 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 c*fc97. qvq /,dihwiipircuit composed of 5 identical ligh *iih7,dfcvp9/w i.qq t 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 is NOT tqv(c2v(e+mdl,+z5dkx ) eq d k3kq+u brue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesck ek)dxlkmq+ 3vv+d(bq qdz5+(2e , u?


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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. :+qm:zsd9- eh*eh rppncb 3w9Bulb X is brighter than bulb Y. Assume all circuit elements n3r pe*cq:9epsw:hhm9d zb-+ 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 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 cvk cqu4iofz9j./5w: o*xni r ;oulombs will pass through the identified resistor in 5 seconds once theui/x:r*; w.k ovizf495 cnqoj 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 followingn3aka 8gn5ew*,ht2 nxh8 tn;;xux 8q z simple circuit have the same resistance, which would dis8ttnwx, kxxq*hn2 h 8a n;nu8; 3zeg5asipate 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 1rsxm 1yp)iv84cqx+9bu0q/ir gpjqnxl1r; /diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the q/ijqrsi x 8rlx )1vp pyrq4 0m1/xnu;bcg9+1power 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 connectedhti p1.t ns:4e3 b1pr t3sfz)l 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 voltage across zi34rbpeht1 tl. tn13:sp)f sR3?

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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 a6l1 l7 qm-oz1uwy (vl0vv0*g pdsulf:re connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipavvym10z6 uu10l s-:qf*( lpv gwod7lltes 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 isgp,i1yanclrh1-1kz h 6y;i9y the maximum val iyh6y1l9nrpaz1i; k1h- c ,ygue 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 operate 5 as(w z-7sc,dwe+rvj at 120 veszc7(wrd w,5-as+j v 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 4ba n qqzmv:6 r;m. +exq.u(x)9tk mvj, ohm resistor that is dissipating 36 watts of 6ue z:+.a m.m rnqxbjxk,v9tm)qq(; v 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,ccyz5u7yj, h0hyv wkx(-/tz is marked "120 volt, 600 watt.” In normal use, the current in ik5x(h hc7yu0,-zcv w,t zyj /yt 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 circuit u)a2fg 4(pmyvf c1xdm:xa 3g1containing only three identical 6Ω mafmpg1acy)4dfxgu 3 2v1x:( 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. Wh bi2;vfxb08tyich of the following equivalent resistances CANNOT be produced using all three f;0bivy28b xtresistors?

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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 differentf1 5l:.gc ntle values can be connected together in different c.lclf 15te n:gonfigurations. 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 batauj;vyd:d u 4-/ xn/qttery, a total power P is dissipated in the circuit. How much total power is dissipated iv/ ;/ d:uuy datqnx-j4n 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 1bhs6vn klctqqilo(,-33z4 ch58k nland R2, are connected in parallel, the equit 8h 6hsqkli-3,54c3vnnqclzb1 kl ( ovalent resistance 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 sucn)9h0z :fskimh that it has a resistance of 12Ω when operating at 120 volt:fh 0)z9ksmi ns. 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 is dissipatmlaa*d g*wfdvj5*ky-gj5ha6k )nt . ;ing 36 watts dvgj)agwka;* 5j6n ytfdh5a m. kl-** of 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 gq+ 3aj) ,ekiwto 120 volts. If tqjkw e)i 3,+aghe 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 would it cost to keep a 100.xjzfxmh c0 hin1 e69/W lightbulb lit continuously for 1 year at a rate of 1j/ 0. nchmhe6x9f xzi$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+*dd zyo1,zi.b ypk8jxle3l 7 lightbulb results in a power of 24.0 W associated with the bulb. Whi i 8l*o djzkebzpdy,+x.317y lch 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 ow ): klxwe it)d/4,izaens 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 maximumld /)i,:etxiae) zkw 4 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 resisti0 /mo kssls)9b6*llnors to form a simple circuit as shown to the right6m / s)9lls*ils0obn k.
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 conqg.cf)os)+k:k *za ldnected to four resistors to form a simple circuit as shown to the rd+cfq*)kl . :z)o agskight.
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, a nrmx)sq78nzbyy/.lv9 o:w +mn ideal ammeter, a switch and three resistors are connected as s)yz nq my9nr+xb o. mwls:87v/hown. 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 switch and tl:d1gntx. et- hree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp-te1 g.ltd :xneres.
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 )e(klc jzoj e-6 e5mydjg1h51 ammeter, a switch and three resistors are connected as shown.51 jz1 5 ekm6lcj-dgy je)(ohe 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 show/xb0 74snder ctupi)6 n 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 id6xie )uc4n/ 0sbptr7 dentical 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 with reu4nprch i3hu5).ly:gtz b(( psistahb uc )ltyh:3(4gp(i.pnu 5rznces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectebdy9+ m vii7 2e4jcdx8d in a combination series and parallel cirmi4dj8 v2 9ex7 +dybcicuit 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 resisttoj;(z7 k01q hkl uo(bors connected in a combination series and parallel circuit to a voltage kutl7( o0hojk q1;bz( 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 ar lgzy5 l ox.dc+,oj0y4e identical. Which bulb will cyd.jyo,5zlol 0x+ 4g 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 switch and three resistors are co7z6o/,z xeqg 09p tquonnected as shown. With the switch open as shown in the diagram the ammeter reads 29u0px z7ze gqtq, o6/o.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 thswwb,ugoqyz8 y:eks9z6(03eh n ve)8ree resistors are connected as shown. With the switch open as shown i,bns zse oh98 0q:8e3wky)wyuvze(6 gn 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 idej 4nq*9triua1 al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am9jtri4*q anu1peres.
When the switch is closed, what would be the current in the circuit?


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