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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 resist2h3j kimoc s y)iwze*) 8dp7bp.) 0gudor connected to the battery. Which one of the following choiceeo ymbgz ipiu)0ps2.*c dkd))37wj8 hs 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 /h4uz b 35nnro7j /bojyggn0re)e/:y resistors are connected in parallel, the_________each resistorn :ugb4g)yn0j7roh eyjn / oz5e/rb/3 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 filamentkbo*mirn 6m:+z (mam4 it 12u9dib:qe wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler.mimre9u:tbn(k2d1*o:6 bz 4m+iq aim 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 h+5jd9o6q4sd gxt 8xwaousehold lights are being replaced with LEDs. LED is the acronym for which one of theqodj s +xa td5x84g69w 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-sel - o0d;nb0lmxctional 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 tod ;0xll-0nb om 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. Wir:4cn )i seqx(ne II has twice the diameter and twice the length of I. If I has resistance R, II has resisn: 4ic q(sxen)tance

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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 matu(bx*;a: mqb qerial but has twice the diameter and half the length of wire X. If wire X hasa um* b(;qbq:x 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 xd :y n;nb)sv 73xuei7d doq*+has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of thxd3:xey7*bv;no7 dd+ su)nq iis 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 Edisonpp8qug*s k 624b :xdwj wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mk uwxpqj8 d6s g:b*42podified 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 cylindrical resistors are made of the same material. The length andkj;j rmyyb hx ,c vn::w u5n6b:n(5+vzhh/a:a radius of hmj5w/: 5r:ycvknx: a,bznya(:hbj6 hn ; v+ueach 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 bat8 4u e5j.ec.fjrv p:0n9j*sdbwf mk v9tery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third rvc.efdu j e5r 9s.:b j4k8*09 jwnvpmfesistor. 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 y, /hsf9dnj6f4x2s aoph 24y a8bk*rx accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amoaa/2k 4ry 9p6nhs*,j 8fhb2f4sdxxy meter 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 circu5td;gw/ uz6gait shown to the right. The three bulbs 1, 2, and 3 - repreg6 5dzuga;tw/ sented 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 electk l7v5* rck-pw jn0/qdrical circuit at the right. If the current in all three resistors is equal dq*0cp/ kkw57n-lvrj , 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 repres5p8b5mzb -q )ghsdxpc*j;v d8ents a simple electric circuit composed of 5 identical light bulbs and 2 fxgd;d v8*- 5mbh 8bpzc s5j)qplashlight 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 true concerning*xc s7 l2fgf6e2*j xxhs ok;2i the simple circuit shown wh *hx ffo22 *xkg 62sc7xjesli;ere resistors 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 connu ctrmac*36)lf +qm8t4cv rv 3ected 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 onec* cc+tfm 6lq)3tu rar8m3v4v 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 throughcyk/b yv6)5adpcb3b w(d;tx+ the identified resistor in 5 seconds (cb a d;3)dwbv btcyky+ 56/xp 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 the resistors in the following sim4nr )11bmb/ s0zeybsc 1p5gxgple circuit have the same resistance, which would dissipate thb1/1n r1cpb5zs b0ymxg4 gse) e 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 ciml .a p7)iz/ohrcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supp a./)mzoli7h ply 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 Rbv:r37ndkppr: dp 3z/ 1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2. 7 p r:3r3bkd/dvppnz: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, R2 andR3 are connected in parallel to69t0mxy;hj84.(x aa iutozh do;hxz8 a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipaoox6jtx0 dizt9uz(.y4h 8xa;8 mh ;ahtes 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 h:dh-95+-+*lktul/j io keslrpyx) kis rated 1200 watts and 120 volts. What is the maximum value ofs-+lio /hktdhex kpyju l*+k :r- l59) 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 designedw wm3( qd497*jqls +bog 5j)*zyd xyiu to operate at 120 volts5q*d47ljq3yis x 9(z wy +do*ju)wbm g?

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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 resistu ghxay7.n) dzmime+l25g i56 or that is dissipating 36 watts a6h x)ge m2d5y+.m igiu75nlz 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 .jsq 0lrmy1sv fdj :;j/tz7p:"120 volt, 600 watt.” In normal use, the curref:jv1zsy:rp0dt .jj;/m 7qslnt 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 NOT be pi)m8ougp 3 . y9gllphs: 7oq+ ao3mw)zroduced by a circuit containing only three identical 6Ω resistorqlpy ggh:m)3o) +sl37ao98 umiz.wpo s?

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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 equocjjhz7 *f) niiq3.vvc 2,nd6ivalent resistances CANNOT be produv, 6)d7 2zcnc3 oj.njvh i*ifqced 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 a3tmr4cdd5abz: 3a w-together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prc-admt 5b3aawd3z 4:r oduced?

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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 q .ojfrgh-l x uykus4*h;7r*9is connected to a battery, a total power P is dissipat uq o**xkjs;f-gur .hy 4l9hr7ed 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 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 and R2, are connected in paralle wk vd3z9ta-v2l, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resista-d3av vzw9t2 knces 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 ik /b,n.bmb9se2 tecgg . un/p(t has a resistance of 12Ω when operating at 120 volts. Whabn., su9(ckgp.etb/g2n/m ebt 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 ki e b2 )62;xgpujz0ukns 6at4ohm resistor that is dissipating 36 watts ofk)j 2ig k 4un x0u2;psa6teb6z 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 137b/g bcw*x 7g/xioxn 3 amperes of current when connected to 120 volts. If the pricg*ixn/w37gb x / c7xobe 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 wouev8rqh-hbswkh9k7 -6- kai5 nld it cost to keep a 100W lightbulb lit continuously fos8h-w5-r k9hv ak ih-kqe6 n7br 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 throught*f9d/aio (g e a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulde9( oai *tfg/b?

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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 rat a)wc(j2ps ; m (rypqio-*z;fked at 500 watts in a 120 V circuit. If all computers are ply*p(z) qjks(pcom;wf 2 ia -r;ugged into a single circuit protected by a 20 ampere fuse, what is the 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 req8f 9z +mqmol33*inncsistors to form a simple circuit as shown to the rl*3m8n cizoq3nm f9+ qight.
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 simple circu w) y0fn c;xwt.ya(h 7/7aozkeit as shown to the right. 7)/ acwz yot h7;k wexny(f.0a
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 an xfxoj(/vp59 kd three resistors are connected as shown. With(kvf9xjo x5/p 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 8rosrd i:)pc 24t)g knthree resistors are connected2t:rd4cgkn ipr)8os ) 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 g0vcp i7h *gl7qg;w;yq md:r0 and three resistors are connected as shown. With the switch open as shown iniq7 : md l0yr*gwgg;qch; 70vp 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 the equivalent resistanc yis hy 0;:rtwkc0bd 5gq+4ez*e? Assume that all wires are i0b i*dz w45g y0t;shqyrkce+:deal, 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 resista lk42xq j+o- co(bt3jwl:ws7ynce of the circuit shown to the right with resist: qw c3jl wbtooxslk jy4+(-27ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho*psp clp 2 9wg28 fajuu;mha52ws five identical resistors connected in a combination series aa;5 awu*p2l8p2 sjf9 m gchu2pnd 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 identical resistors connected in a co0k; f/bv3tslb mbination series and pa /skb ;vltf3b0rallel 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 of the bulbs a+ju,oxaxgc69lbq2 q or1z1bd37 83o,slje skre identical. Which bulb will be the brighte6 jdqqkuse xo 8r2o1c37 9aj,+3gl , bo1lsbxzst?


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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 thib ecg1-s+i n,:b3vdkree resistors are connected as shown. With the swb en1,ikd3b:ivs +cg-itch 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, ankf/hewo ,lj88 3bf ,tf;n-om v ideal ammeter, a switch and three resistors are connected as shown. With the sww,m8 ,k fhf;j8f /otnlb-3ve oitch 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 ideal ammetak9/ 5ykuis c.er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet9yckika /5us .er reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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