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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 exisfbp) 2nq3iu1o2m pu*wts 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* oi12b3pp ufu2qn)w m 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 connq qus:lu,+1tzected in parallel, the_________each resistor iszt:s1uql u, q+ 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 filament wire of a lightbulb causey5 yb2k)dtf d(s the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bd()byyk2 t5 dfecause

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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 hol-a)-dys * e74tai nr;z*kgpxusehold lights are being replaced with LEDs. LED is the acronym a-*4k ret gp-nyx)d7l;i *sazfor 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 graphig07khzuuxr : 9te resistor 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 the new resistivity to the old resistivity of the cyli7x hu0:kuz9grndrical 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 uii5 y6o *ox;cmade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistan6xcii5u; *yo oce 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 twipf h 4; ypb6 e6v)7b8tu0x;vs w(jbphxce the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistances7 8; 0p vp6wxv6hxjp4h(;t)b bbuyfe 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 ra )ht)jc olnx7-dius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistancehn)txc 7lo-j) 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 make5n8s .m4 dlebh a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbu bln ehd.8s5m4lb 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 resistors are made of the same x x(xb )-.gnsymaterial. The length and radius of each resy-x .s(xnbx)gistor 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 rez+b *ined5 bm1sistance R, are connected 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. T*b1n+ bm ei5zdhis 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 cgvv 8to+,;wjbvmz j- 5ircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0wo5jbz; v j+,t8vv mg- 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 toiaa;-b8yh7hmno3 5eo the right. The three bulbs 1, 2, and 3 - represented as resistors in th y8aeh;3mbo75nhi a o-e 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 circy1 qgn-(7 lnvwicxy8r:q k3i47ivt 4guit at the right. If the current in all three resistors is equal, which of the following statements must be tk ctr3:w 4vg8y 7 nqg4 q(7lii1vi-xnyrue?


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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 aa)v11fs pksj.i qyfp(q/+7 t z simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulbk sjy+fpzqi7/ 1q fs.(va) p1t (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 statemazsngm h9m4 )5ents is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have zn mh9)4s5agm 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 con9j 6 bko0jhugf3n/q+cnected in series to a battery. 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 fo gb/ cq 6o9jfku+nhj03llowing 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 through thu n9 -8d99vsu,sl 9a5 jteldy0hxhox/e identified resistor in 5 seconds once 5h8lh ,y o e9x9sn99/0adsxjluvdu-t 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 the resistors in the following simple circuit have2*t -zwjn +iwvc d/8.sc0jmsi the same resistance, which wtsw +nzd- i v2 .8cw*sicj/j0mould 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 2 ;yg q3xqrs,vcow)o .7b/pcq, the current through the 6.0 Ω resisto rgovq3;7c xqo. yc/sbq,pw2) r is 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 series to 07y4 a/cr,x4pkxzg2 a wmg:yza battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 disggarxpz2ka 4 /4zy wmc:yx7,0sipates 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, R2 andR3 rb2xl,bgn*7apps q,7 iv 31hu+ jk d4tare connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipap, vxg*dtqia3bs h1 +kj7l up4rbn,7 2tes 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 is the u(1ji-b ,-r(psuzg w;8cwfi tmaximum value of the current under these conditi8r(-u-wcj btz;piifsu g(1w, ons?

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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 :j :6fg28 :mzqiq z8/u;eysq2gb vxg bdesigned to operate at 120 ge:y2mb8gv jz /qif2g 6zqqsu 8::bx;volts?

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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 thao09blq blj 42 j9ch,vtt is dissipating 36 watts of poweo9,tc4 h9bj vlljqb02r?

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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 1tk:i--3l ( /kcxyu eq-ecqfgpress clothes is marked "120 volt, 600 watt.” In normal use, the current in it is-l31yx-qfk uk(e:c -e/qci g t

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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 circuy;qpe0 e/sy*uit containing only three id/0;espyq* eyuentical 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 equivon30zghc7/ w palent resistances CANNOT behogwczp n/37 0 produced 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 0rs20mup.5.f9yi/ld rdp+o 7ft ubk4xnrx 6ydifferent values can be connected together in different configurations. If all three resistors are used in p.t 6 l.rfr7 dyp0is0rud+noxk2 59ubyxm 4/fa 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 +chp 0g 1z*sczis connected 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 using the same battery? Assume the internal resistance of the batterycc1gps+h z *0z 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 conne9 xzotny6 ltw;/l,e2jcted in parallel, the equivalent resistance of the combination is 5Ω . Which of the follo enjt,/2zyl lt6w9x;owing 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 resistartcmb(xnln9k/*hu;k 68s*c;vi y je ;nce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 knicx (r y/;*8k;elbh;j6*ck usvm 9ntg 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 dis;v9ezczz wa,+sipating 36 watts ofwe ; cza+zz,v9 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 c- xjk1 t4pfe9*q o c0m5i(pxyourrent when connected to 120 volts. If the pric0y4x(m-c519pt qpx o*o fjeki e 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 wouldu.pkev 5mh 6svu:6pl( it cost to keep a 100W lightbulb lit continuously for 1 ye65:h( vep.v6l msupk uar 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 lightbulb resul q8q2w1be*litts in a power of 24.0 W associated with the buq8iw l*1eqbt 2lb. 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 50 7;sl+hb8tlzv z 18s9i nshbbms 2z:-x0 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 can be operating :9sb zzs sbn71bz;x-8lhils+m8 v2ht 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 connectgfb (uqpfljdc 447ad*-; z6q ao(b/sz ed to four resistors to form a simple circuit aqfbpqg-; 4zf7ub* aczo4ds (ld / 6ja(s shown to the 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 resistom ggd/y 8v.,ptrs to form a simple circuit as shown to the rig/. m 8dtgv,ypght.
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 z*h8b*5 sx flland three resistors are connected as shown. With the switch open as shown in the diahflzsb 8**l5 xgram 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, clu2+oer )wun:1) orpan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads w)c)e1u: nuoprr+ lo22.0 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 stuw +4 bf.w x7id z.ghv66k/vlwitch and three resistors are connected as shown. With the switch open as shown in the dkflwv6zi x 4hdwt+vg/.7.ub6iagram 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, wkhifp+y4 ,h8)e pf9r 3mbbt7that is the equivalent resistance? Assume that all wires are ideal, the battery has no internal rey4kf,8tbp f pbrh9)him7t e 3+sistance, 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 rg+gloy w (9. *hrhbc/yesistance of the circuit shown to the right with resistances y b*ygg h.lwr+ /(oc9h$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors2-edm6x65 s-dbc dmcg connected in a combination series and parallel circui-edxdgm-csm6 5c6d2b t 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 zgrtdq0m1x / q8/u)dswi/m/w combination series and parallel circu 18sq//wd )xuwmi/r/zgt0mdq it 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 of the bulbs are identical. Whicv1hoh o gh 5j12bh+l0mh bulb will be 5hg+ 2m o0h1o1v hlhbjthe 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 ammeterrae2 s ca1/tfnw5 1sj;, a switch and three resistors are connected as shown. With the switch r215w tjsn 1a; /sefcaopen 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 three * qcd ;m4 j7ps)xy4(*h rl 8ugvj5ryeoresistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampd*vr7yp4y;xh(*ce8lo sq 5j m)4 ujg reres.
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 thrm5e8,k vih93sk8mn z uee resistors are connected as shown. With the 9vnkuh 8 ei3s5z,km8m 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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