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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 currenseya4s,4 l;;oia2 pm/4n/ b bra9i rtut exists in the metal resistor connected to the battery. Which one of ab4 rpun /m /9eir4y;s, ;ibs2aal 4otthe 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 v.14rv) c7r lyec5;o 4jayvrfconnected in parallel, the_________each resis7vrje4c ;cy4 ).frlr1v5oyv a tor 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 thin filamenw76d g 4kwcd0mt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This cwm w0kd4d6g 7happens 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 i;y ch+br.:evu1i z ty,s the acronym for which one of the follow:u.1thzy cey,b;r vi+ing 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 resist5- a3 hzz0laemor has length L and cross-sectional area A. It is to be placed 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 t0amlezaz 3h- 5he 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 has f gp+r56 1 nmvv1gmhpe5a)hb -twice the diameter and twice the length of I. If I has r61 v hg-m)ef+5a15pvrnbm p ghesistance 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 but has twicc07cmys 8e5hc e the diameter and half the length of wire X. If wire X has a resistance of R then wire Y 7h c0e ym8c5scwould 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. T5o7ipk r- - (qoby4hewhis piece of material is then drawn so that it is a cylinder with new leowro45 y-7i(e-p qb khngth 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 w /qgr/0qnwi5 wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb producqn 05qwi/g/wr e 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 resl.2 d)g ;pagjbistors are made of the same material. The length and radius of each apggl; d.bj) 2resistor 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 gjtbwzh522 :z 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 arrangement of four resist25zhj:t2 wgbz ors?

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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 resistan 2*v*em/pj4v wd qz d5yna+qs3ce 10.0 kW and zv *sm nwp+a *e3vjyd5qd4 2q/the ammeter has internal 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 circuit shown to the rightu e gbbqth3n)cuo vit40 :y137. The three bulbs 1, 2, and 3 - represented as resistorbu7ie nt vh4:t0 uqgy cbo1)33s 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 tv062l-cabrysdczc ;czr glk +f. - .1current in all three resistors is equal, which of fg2k.cr.lcbzad;cy-lc+t 1r0z 6v-sthe 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 represen/ ujaprw;7 +rg iu 9cxqq(/d1mts a simple electric circuit composed of 5 identical light bulbs and 9(q1r;wi7cx+rmu qdg pa// j u2 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 stq 8m.98hxx) enty5eokatements is NOT true concerning the simple circuit shown where resistors R1, Ryhe5ex)xoq.nm k 98t82 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 connected in series to a battery. Bulb Xc;9u:iu;xn ew 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 rep;;n9ue: cwxu iresents 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 resistor inmtn4 /ur2 bpnz(p /*;v:kcjep 5 seconds once the circuit wa4erp cp k(2n nzmj:p ;vb*t/u/s 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 follow.d3d0(ovwmio/lwshh7 4 ump 0ing simple circuit have the same resistance, which would dissipate the greatest p3 7m4 / oiwv.l(suh0m0odwdhpower?


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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 cikrsv8nq2y -m1j v7v 2jrcuit diagram, the current through the 6.0 Ω resistor is 1.0 n1 -qr2vs7vy mkj8j2vA. 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, jqdb gd5 fwa310q-8pn 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 diss3qpj-8n1fw0da5qgbd ipates 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 res sqt ;z8e4ftm h6/lps-istors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whath- 6 z pq/4fs8tlemts; 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 nm7o 5-ga, n b6bzltz*120 volts. What is the maximum value of the current under theseo6gzan,bn7z -*l t 5mb 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 watzfspt0;m)b l9) p )xstt lightbulb designed to operate at 120 vsxt);z )9 mpbspfl0) tolts?

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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 d394/w;xva 1ofub s,drcvp 4 unissipating 36 wat ovaxb,unw 4u/d4 ;1c vp39rfsts 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 watjll xg 6swb*16umvqz2n0, -m pt.” In normal use, the znj q-,g pmlslu6xbm2v* 106wcurrent 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 fn r;zaf j ts.5tf;w0h0ollowing resistances could NOT be produced by a circuit containing onlyn05th j;t.0z;f wfsa r 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 following equivale/ 5o isgt r i6ec*lw+;e,vrmocbk(q6: nt resistances CANNOT be producedq5*o(t/6irkeiw r ,6 se b;gvoc+lm:c 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 908 mbyc zb6ynue)8lo values can be connected together in different configu)yluec60889 yznmobb rations. 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 battery,sn nqr tgh0-d u,rn0 ,.-cce9v a total power P is dissipated in the circuit. How mur0,c- vgn9.hns- eurqn0tc, dch total power is dissipated in 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 trr tfbz(*)x9 R1 and R2, are connected in parallel, the er)(*txz 9br ftquivalent 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 isj-z;l a0 qi1 *guiyv;r designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would takvqi1; li ;zaj0* -uyrge 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 disghezm hahopa 4.f2fof-l:45:sipating 36 watts offlfa.-254hh:4p a hemogoz f: 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 to 120 vcpczcwf -)m 68 x(afrz/ vv.u,olts. Ixp wfz/c ) c-,v urzac6v8m(f.f 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 h-z t/dabu r( /jm1n-upe.dp/now much would it cost to keep a 100W lightbulb lit continuously for - p./djup/na zdbe (u/nm1rt-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 lig-p pk lz xlm1c/m*8/othtbulb results in a power of 24.0 W associa8lcpk zp x/t-omml* /1ted with the bulb. Which 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 fam z24;t-bj0 ,;0td+crs s z5+ aid8iardlcoytvily of six 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 ;ryrsd4 zsilo0 + ;ct+0a,v-id2z5bjcda t t8 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 resisosg a:(gnpu,-u y4cqmf-o +4 rznk u3-tors to form a simple circuit as shown to p-,un(3mz: 4- uq- orgau yc+onsfk4 gthe 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 is connected to four resistors to;6fcb,3x ,a zkp vuqi1 form a simple circuit as sho6,pz;3afvu1k ciqb x, wn 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 resisto+;mgcj64:s cj dwv4 fvrs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a dgm6cc+44fv;w j :sjvmperes.
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 switchdqi2eb ,fs+hu o *e9,lgg9(if and three resistors are connec2b,le (, d9iihegs*f+9qo ugf ted as shown. 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 ammeter, a switch and three resistors are conhoif45h 4e8qs r/8hp4n pnxrhn(; p /a7h;dirnecth r8 pn45 fh ;4 pie;8ndasn4/(hirhp/r qo7hxed 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to the right, what is+b83 ymjp7 z brg1;nbr the equivalent resistance? Assume thabn; 1 y pbzj8rg+73rbmt all wires 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 sho ;a-yf ywlf7zfff 5 4ugkgb:j:qf ,-)bwn to the right with resista bg:kw4b:7yu-qfy5,f f-;f j f)lgz afnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorompn*i63;kvrhw 8p;) 3a ilacs connected in a combinatioi3la wi);kpom r8apc;h3 n*6vn series and 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 ideq*4 - sjt8hqxd ,9lddbntical resistors connected in a combination series and parallel circuit tsq49ddth* 8x l bjd-q,o 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 diagram, pr9e/kpa1+ gi all of the bulbs are identical. Which bulb will be the brightest? ap+r9igp k/ e1


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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 switcpc o, ha9igwg ;/(ch(kh and three resistors are connected as shown. W g/;(,p wchci(g 9hokaith 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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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 thre:o yk do 3nz82pwhyh.z 5d7wj0e resistors are connected as sho z5o dn0y.7jk8z ydopwh2w:h3wn. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an idz bpg zc3 r/s 9zx71moe.xsc4/eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes./ g1co / 4cm93pbesz s7.xrzzx
When the switch is closed, what would be the current in the circuit?


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