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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 in the metal resistor cxpj: gos6l 9tk8o 3y;h 3-(ktq )pljkronnected to the battery. Which one of the following choices bests k j3ktlxppgth:o8qo() kylj9-r;63 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 7l, 9nz gzjwie2e5 nn8gh7*ufz *io5eare connected in parallel, the_________each resistor is the same.l7 w2eojz9 ngg fhnz* 5eiu,iz8e5 *7n

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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 wire of a lightbpn .t( hest. q5fow 67wt3+gniulb causes the filament to become white hot, while the larger wires connected to+n6.t 3wsqgh7. pn(fwtoeit5 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 hou0u9 dhcw4vd5/lktv: e sehold lights are being replaced with LEDs. LED is the acronym f 9l: dwdtcvv/5e0 k4uhor which 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 and cross-s/elxr /ltjw34m;o ,pz ectional area A. It is to be placed into/l3;jo ,p/xtw4le m rz 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.eq a8p4ut; +ko Wire II has twice the diameter and twice the length of I. If I has resistance R, II ha48aokp+ t;e uqs 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 twice the diamgz)(rcm ff .j;x ;t6l0d2cu gueter and half the length of wire X. If wir ;ju glzrxft (u 0;6.d2c)gmfce 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 rq02wi qgwh )1s. This piece of material is then drawn so that it is a cylinder with new length 2L. Whasi 1qw2hgq w)0t 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 :0:tdpl+h sylants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to maket: hsl0pl:d+y 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 bo8 v5-9 n leymvq+ -oeiq*j74 ;nefdpresistors are made of the same material. The length and ne57ni j- f-ode9vmp*+y l ;q8qe4obvradius 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, k:pyvjs :r,t2ad 6a, tare connected to a battery in the following way: “Two resistors are connected in series. This combination rtats,pd6,2jy :a:k vof 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 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 internalj9 / 9*pdighso5mw3:sh*xmt j resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mostjsjg3md*9p9 /m x5is*otw: hh 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 rightj+(v2yz twa.j re75n,c2vrcf . The three bulbs 1, 2, and 3 - represented as resistors in the diaga+(cc5j vy.vf2jz wrr7nt2 e,ram
- 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 elect(1oph kdd4 uhvzr* r:+rical circuit at the right. If the current in all three resistors is equal, which of the followi(d1op4r*huvr k+z h: dng 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 ci) *nt1 d7um/aqktzl )mrcuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or )zm u1 ln)7a*t/kqd tmbulbs)
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 followi) s: h(jkhx*qiw92hwx(, ywqeng statements is NOT true concerning the simple circuit shown where r:syk(2() xh9ew*hw x q qwj,hiesistors R1, 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 ck 9g u.))r wqarg,q(dzonnected in series to a battery. Bulb X is brighter than wg)9.kz urdqg(r)a q,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 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 tqk.xwk vhd3tn3oc ,5 *jg-q, through the identified resistor in 5 seconds once thvnko *xt,g3.w 5cqd- 3htkq,je 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 followz(4-a9 paeo vging simple circuit have the same resistance, which would dissipate the greateoezp ava 49(g-st 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,ue5rcz yj b)46c9s. vz the current through the 6.0 Ω resistor is 1.0 A. What is the power uc.bcvy 6e)5s r z9zj4supply 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 vqwh-m(*a 6f7 mcff4i R3 are connected in series to a battery. Suppose R1 carriem fw64 f7v- acqhfi(*ms 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 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, :f//je 59vph qy2bnxy R2 andR3 are connected in parallel to a baten 5byh /p:2xyfv/jq9tery. Suppose R1 has 2V across it, R2 = 4Ω, 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 1200yj/wb p*gct;lk s:b6 ( watts and 120 volts. What is the maximum value of the current byptg*; /6w jk( clb:sunder 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 d .3za/ui*kd (vk nannhda1m0155ptjlightbulb designed to operate at 120 volts?m dak ia tuvd.n(35npa0j 1d*h5n/z1k

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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 wcov / s(6 h6tam)fn)wohm resistor that is dissipating 36 watts nav/6m f)wtc) ws(h6o 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 u(g 1jtd wo-z4fj22 embsed to press clothes is marked "120 volt, 600 watt.” In normal wf2jed1z4-2bog(tm j use, 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 rooe 3 ;sup d re5h0abvr70/1reesistances could NOT be produced by a circuit containing only three identicalau5;7rs0 rebehd3p0 oe /1orv 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 followinq .df5 u1mywv2g equivalent resistances CANNOT be pf.vuw m2y15dqroduced 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 togaxqaf )uaf1dsa.)3x - ether in different con xfsafax-uda)1qa 3 ).figurations. 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, a total power P islpc rr u-cdmqe33b4jh 8z; b.8 dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors-h 3.cljerpbrzm u3d;8c4b 8q 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 resistanc fy2r ,v7jzn y.jpv)fxh 7ls-.e R1 and R2, are connected in parallel, the equivalent resistance of the combinat7v 2ysjx7hz. vfj)f p.lrny ,-ion 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 de o;zr;n ;z xq e:bt0ek.l;na0rsigned such that it has a resistance of 12Ω when operating at 120 volts. What is t;;zn no eza q.0r: xlk0brt;;ehe 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 resiste-9 q kon0v a,lj9vs8rpl) j.mor that is dissipating 36 watt v9vrjpq k8lmes-nol,.)j0a9s 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 heatep; v2n (x)4c rt. c3petvznlk+r draws 13 amperes of current when connected to 120 volts. If4pt+ne3 .c2 p)kvc nzxvt(l;r 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 lightyw71 aw* uq yek mkah;*98x.wybulb lit continuously for 1 year aa w. uha;q8 71*e yk*wx9mwkyyt 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 lightbulb ) ys g y1kfu x2f5(dzkxwv,8p*results in a power of 24.0 W associated with thewgsk)1fvxx dk*y5,z (2yf8 up 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 family of six owns a computer rated at q*1udpei/u:b-u- 66rrcmlz l500 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 -ilz6-l :udec6prb* r1/quum 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 circshal6a dbgc;g,/1g 5auit as shown to the ag 5 a1lgbh; 6asc,d/gright.
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 simplegaa ic3 a527yb circuit as shown to the ri3 ybg 752acaiaght.
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 resi;vb1;ke a-m 4zaqsub4 stors are connected as shown. With the switch open as shown in thease41bmu k v-b4a;q;z 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 i 4a5cjed1abyn :(zm 37 xsrv4cdeal ammeter, a switch and three resistors are connecd js 1yc4vba4nr amc zx5:(3e7ted 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 r7 -+:i qjm r0vq,v0 surg8.a7whpcz okesistors are connehqr-7ursa:.vc 0vo q,0m+wkigp78 z j cted 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 circupl; z9 umfu58zit shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors h pm58zul uz;9fave 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 nj) eaj*/b*m3g4xv m jthe right with resis*3 xegavm*m)b/j4 jj ntances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorsxq 4er49i0xgo connected in a combination series and parallel circuit t gq0rx944oie xo 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 fiv mduw. ml5sketiel6q2./;m e 5e identical resistors connected in a combination series km; uem ./iqmtlsl5e .52dwe6and parallel circuit 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 diagram, all offyt(mx8m8e cf - yjk7febu xqp:.3i,5 the bulbs are identical. Which bulb will be the bright xeb3-kxpum ffqi.y:y85je 7mt(8 fc,est?


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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, a8 t8u9.fkr hnm 7j3r/fts/m stn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a kf rrhft /sm8u3t 97/.j8ntmsmperes.
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 battem gfb8/5pxrz-ry, an ideal 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.p-8 bfgm5x/rz
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 battybkx 3zv6,o)x ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in thvob36yx x ),zke diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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