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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 show (6a34eidxk y dvl awy,(d0r;gn, an 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 through the in,ara0i(x4dklyge3 ; dy wd6( vterior 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 hkp5q: n .8g dmowc+c7are connected in parallel, the_________each resistdm7wh.qkcpn o+:gc 58or is the 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 the thz)dp+ossi, cx5b;bd4 9 vcuq;in filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected )ocs; vc4p,5z;ix +b du9 sdqbto 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 are being replaced with LEDs. LED 7igxa- tk i7oodu)wngvi *7(hl+6x t0is the acronym for which one of the following choice* aogktdnwu(+l7xth7 g6 x)iv7i0i- os?

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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 cros, /ymgas)9e/6pynid is-sectional area A. It is to be placed into a circuit, but it first must be cut in halme )g/ya6s i,/pyd 9inf 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 thet*pnzv;9.hbw(m vo n9 same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistancepv.mz9 ot;(*b hnwvn9

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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 samez0. 1sq(mo 9,rlqyksk material but has twice the diameter and half the lengt9z1,msk(y0lsqro . kq h 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. This piece osoe-at:;r c*buqd,9of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thiss c;: ,ato obrd9*euq- 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 ma mb 73tqpmicock3,21hke a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the l323qb1tm hc m 7,kpoicightbulb 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 resist26:: bm:ciih lx otrh+ors are made of the same material. The length and radiuh2 mrx:oii+b:c t :6hls 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 of resistance R, are connected to a ba-nurq4 )r;b ax/:loa8ie 8k xtttery 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 resa8)n4x-8;t qkli/ :u xrroe baistance 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 internal resist9r.lgpz2 :jkn/4 mnci ance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading/n4 :jmplk g.c2 znr9i 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 giqmid ev1t+ m52us m9u s -ibi3q07;vright. The three bulbs 1, 2, and 3 - ;3+mub9 i2t gv7mu0eqsqs15m-iivd i represented 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 circui / czslny.jer8nn2 ieye ,4( 59)paihrt at the right. If the current in all three resistors is e 2/, i hr j(lriye4ey9szpnc.e5)8nnaqual, 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 circuitx l3hvxz 8g.pq7gr9u6 composed of 5 identical light bulbs and 2 7l qx3hgp.x g 86zuv9rflashlight 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 tru5+s xwc 9n k 2g7oaadr(kv,id0e concerning the simple circuit shown where resistors R1, R2 and R3 are hav s+d79dcnkvak2r owg x50a,(i e 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.o/r: w;/xfyfd 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:r//yfdo fwx; 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 widg1.5 p5lccr ill pass through the identified resistor in 5 seccrl5g 5cpd.i1 onds 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 thxi otr)uew1y or.l7*)e resistors in the following simple circuit have the same resistance, which would dissipate the )lir.*teox) r17u y wogreatest 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 curren-b1upa a t;k,kn ;nh77kha d9vt through the 6.0 Ω resistor is 1.0 A. What is the powh 1phnvn;-kk k 9d t;,b7aa7uaer 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 con+1xwxu8lap, y jd:zj0nected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a rex1:08+d uapj jlxyw, zsistance of 3.0Ω, 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 different resistors Rm1 f*)qd a ;bm zie)e)e2r fowsh7*-fa1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3rfia h -m)))asfb dze 7*1e2omqwe*;f ?

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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 iu(mvjq/vl3se illfpx1b v zd5::hk e .3tf21 4s rated 1200 watts and 120 volts. What is the maximum value of the current under these conditionshf 2e5vs ve.(1q3m3 f: uvpz td :4li/ljbxk1l?

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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 design-jz+fcfn15jv)nhn-kymw,bch 8 ) cz. ed to operate at 120 voltsjnfh j ).f5b8-1cn knz+-,wz hvyc)mc?

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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 dissip7xxyike7zh s;jp; 7( )shamn 3ating 36 watts;kjem37h;s7x z (p7 ahn )siyx 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 "12aj y* xc*j/ih;,b t*lt0 volt, 600 watt.” In normal ut*,;lcjh a j/yt*i *bxse, 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 ovoy0v+l0 fol(+h 5 hai80b *t/ ye(uh(gfx doNOT be produced by a circuit containing only three idenheyh0lf (fao voh bo8 0o0xdt+i(/(u* 5+gvlytical 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. Whic1 e h 1d26vyjejgv,.s.3gurim h of the following equivalent resistances CANNOT be p 3 j.ue2dg.e,g6jshm y1vr1ivroduced 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 connected together in differoe ,j. qk(s nw 5wv+xqds4(i*rent configurations. If all three resistors are used in a csx(+sw( k d5en,4j* q.iov qrwircuit, 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 dd . gn1)95sc/lbrym ngmp;gt nw5,,:es )ymvlissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the gp,e;9vlsdcn l)/y gyn wg55snm): rm, 1.tmb 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 r/ofb (qi4 js 0efb26mt p7e2+b0jbwyg esistance R1 and R2, are connected in parallel, the equivalent resistancey2/f( gb 02 6fbqb0wjjo ibepet74+sm 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 ofb9ax0on ,ht4e 12Ω when operating at 120 volts. What is the minimum amount , to4hx9a enb0of 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 y/3 jau/h)tax is dissipating 36 waty)x/aa/h3ut jts 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 et ofm 9f0ga,( rvqs(1connected to 120 volts. Ifvs90 af(r1gofq(,em t 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 would it cost to keep a 100W lightbjh xta-9l, u(bj4q,ubulb lit continuously for 1 year at a rate ,tqb,4ab ju(hj-9u xl 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 lightbulb results in a po2hry-.x+ g ugewer of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulrxg2 .y gu-e+hb?

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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 in a 17eadm)(oykl 3a iq.p j8ab5sq92zv+e 20 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximu2aq ad.mao57 3 8e+eiz jsv)9 (bylpqkm 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 resistors to 0q+ eto5wo qc)form a simple circuit as shown to the right. qt0c oewo5)+q
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 battk6r6) u*st3*1km2.csa cy(5l kbl+ qinqeaibery is connected to four resistors to form a simple circuit as shownq *ekmcyc.br q 6 tl23k)ila1a6b 5s+nk*(usi 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 ammeter, a switch and three resistorwhf6c;wusw:v)p p 1p 7s are connected as shown. Ww;7u hpwp6p1fcs: wv) ith 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 three resistocp b 1e;tz4se; mo8d*nrs are connected as shown. With the eet;8 ;z1nbs4m poc* dswitch 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 resistov3irqy-8r1m ,7 gn1m qkfc7g frs are connected asf cm ki1-y7n18 gr qfgvm,q3r7 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 showbt6dbazel,9fim)8 p 2n to the right, what is the equivalent resistance? Assume that all wirepbie2a9 6),f tbzld8 ms are ideal, the battery has no internal resistance, and all three 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 shown to the right wi0iof c 6b*p6gxth resista gcio0 6xpf6b*nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 besysvet(m:q4hrw 5 5k- low shows five identical resistors connected in a combination series and w(yvtme5 q5kr s:h-4sparallel 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 resistorsa(a.yl 1p2++oh0jj; rgbym xt connected in a combination series and parallel circuit to a voltag +1;yh.(rxjgmbpt2l+ay 0 ajo e 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 aw9/.rrays *1emu jda*re identical. Which bulb /*daer1.j * u9 rmywaswill 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 id-. hhepp9:tkgeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrah:ephk9-g.pt m 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, an1d 9ys 4e,,fsezb m6hdm9ir0v ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagv9m6e104,,rm sdde zybfih s9ram 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, a switch and three resisto wat*co0v4q8 hrs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 v qoat0hw8c4 *amperes.
When the switch is closed, what would be the current in the circuit?


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