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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 electri/vj+cyo(zy lv+vad3s3s .+c hc current exists in the metal resistor connected to the battery. Which ol+/y3.cs+vocjzv 3a ( svyd h+ne of the 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 connected in paral*-w2pj fa ye5da 25w8k5bnbsjlel, the_________each resistor is thew2-kb 5jnd w8paf25a5jy*ebs 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 filado o/morn* (.etr a17lp63rb hment wire of a lightbulb causes the filament to become white hot, while the larger wires cbmla .7o eh *rd/t6ro3rn(p1oonnected to 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 be9k *c0ff.0sz mcot;u x7ecr9bing replaced with LEDs. LED is the acronym for which one of the followict m0z9kfercsc.0bxf 9o* ;7ung 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 hfwb. r(jr:;yqff0 b 6 rk+853osofl jhas length L and cross-sectional area A. It is to be plj;+:os86ob3 f. y5 qbfwfhrl(fkrj0raced 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 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 ad9 u;5q h 78kkhvx9 nksh64njof the same material. Wire II has twice the diameter and twice the length of I. If I has res;6jhka84xhk dk9q79nu s5nv histance 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 twice the diamete1xn :j.ev/fve,h e,qhr and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance o / h:.v,1ehxvj,eqe fnf

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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 Lun1)5+f bki-oyccba* o;xm ep (f*o1j and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happcokypiojou-bma*(xnb)* 1ecf; +f51ens 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 wants to m-ak 2ljorh;xagg:x ro d-, 1d-ake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make ol k- d1a --oj2x: gr,rhaxd;gthe 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 wibrc;7nyu+2lz,-ny8 j (do*pr hu x8 material. The length and radius of eac+w 8up(r;hb78ld y r,i ojyu2*n c-nzxh 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 battery in thetsfn13pf4: ie following way: “Twe4pntf: 13fs io 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 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 m2xi0qbe d57ymw27n i x8y2h jcircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading7 5 wde y2y hm0ii27nxqxb28jm 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 right. The three bulbs 1, 2, a6fz99: gqvuirnd 3 - represented as resistors ini9f9u q6zgv r: 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 currenz a a5rnn7*t7p*az np/t in all three resistors is equal, w/a7pnt*ann5*ra7p z zhich 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 rightixmcw,lu+6h1 g89bx y represents a simple electric circuit composed of 5 identicalb96u,wlx8 g m 1ciyx+h light bulbs and 2 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 sle vz4-abz7e30 wuxe8qh3 c7 otatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal b03ueqe8aez 7 lc7vo4hw3-zx 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 batter6/1b jpbe z+b9ke a)yx81gxx ey. Bulb X is brighter than bulb Y. Assume all circuit elements are idbx g96xe/+8e 1yea pkxbj )z1beal. 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 through theb.; )b ;ck py5xd2mky3, 9mcoi)lkdon identified resistor in 5 seconds once the circuit was close)2y kci). k;xy5d3dkmlboomb, 9;pc nd?


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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 simplhj5:/p/ wtw94pfkufm- od tm +e circuit have the same resistance, which would dim/omht59p w:k4 + fjfuwd/p-tssipate 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, the current through the 6.0 Ω reo 3t )y53 gc-v +oif+0k5r;mf;fr;hrjnttwr jsistor is 1.0 A. What is or+ korr5)53fjmjc t-th+;nfwryv;g;3 i tf0 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 in8n(ys* ehlfa ( series to a battery. Suppose R1 carries 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(syna8lhe*( f 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 annrs fu.ti-ei m m.. k51u66ujrdR3 are connected in parallel to a battery. Suppose R1 has .ku6 n1 i-6m mfsu.erj.tiu 5r2V 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 rate g*j o.cqde8-+xl /ijzd 1200 watts and 120 volts. What is the maximum value of the current unde 8*z+q. igo /jlx-jcder 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 resista )jh7xf0qht dlq rq(:q21 g f0cgt)nu1nce of a 60 watt lightbulb designed to operate at 120 hff 0q t()1:hqnl tj d0qu)2gg17xq crvolts?

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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 73;xbs *id j/xikb:mokf huv3)p7r0f flows through a 4 ohm resistor that is dissipating 36 watts of p hvk)fx;m r:/b07ds bi puj*kxo3 7fi3ower?

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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 markedbru l28zi* ro2l+*ixw "120 volt, 600 watt.” In normal use, thlx+uo8ib*2l *2w rri ze 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 couyhaepe*rw v :h n7ijiq;r9r8ce5 /7x ,ld NOT be produced by a circuit containing only thre7:h j pr;rh eniaie7cxw *5/q8 v9yr,ee 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 +1f/9jurgdnim fp 9hu(1yfnd o55dq 4zf )z.o following equivalent resistances CANNOT be produced using all+5fhn)m9qfnjgf f1ru9iyd 15(z 4 .d/dozopu 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-75b.x1ocb sm1n ic qs values can be connected together in different configuratio7b1n1sqcom. s5icx b- ns. 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 is dc r65j m1rbhc2issipated in the circuit. How mub61 rcrchmj 52ch 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 andt5wn 3+iawbf0f va4,*fvf b0k*pnm 5l R2, are connected in parallel, the equivalent resistance of the co5p+ vmk 3a05 bwf40nf,fniw vbf*al*tmbination 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 resisto in)6+ twqte e )d b0788tbyku49wa smk10lcjance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water j)e qmt +0)t lcwyt uan0k wd97bbik841 6se8ofrom $15^{\circ}C$ 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 a1 ;wqn+c8k jk2g y)gt leg2l:i 4 ohm resistor that is dissipating 36 wattsk+;gj2glty2c )gi k l:qwn81 e 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 )726i gxdf wub13 amperes of current when connected to 120 volts. If the price of electrici6)gfui 2bxw d7ty 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 z dnm+s:;dk5yb qh*0kmuch would it cost to keep a 100W lightbulb lit continuously fornm+d ;dky*zkqhs5 :0b 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 2vj1blvg 9)1oq v(gngA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repr jv1v vg1q)g2gbn (l9oesents 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 o)v nq5d4z9a8qp(a ajswns 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 maximum number of thesnazav(j ) 8q9pq5a4d 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 connecqzyqqp0 u *5b7)u) qfusmfj6 8ted to four resistors to form a simple circuit as shownzsq6q)yfuq q u*p 8)50bjmfu 7 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 resistoc6-6mm ll exg(pz 2g*wrs to form a simple circuit -(62 cwpgzmx*egl l6m as shown 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 sd3.s+ 3arc tf,fr : gcm-lm-qtwitch and three resistors are connected as shown. With the switch open as shown in the diagrt 3 saftd3m +c:,g frlqmr-c-.am 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 resistors ahue /8gsk 7t+tre connected as +8/kh sue7tgtshown. 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 ammete aa cknp6s-,6fe7 yjf v-0)xykr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete, aafs0yck6kj6 y fp7-x v)n-er 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 5r xkq9t6+kpnis the equivalent resistance? r 5nt69+px kkqAssume that 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 qpf(b f;,*wdmthe circuit shown to the right with resistanqbpfwm( f,;* dces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a combinatipefhl1i7l7x05 t)7 1g1mx s7jw 2xgkekjwf j:on series and parallel circuit to a voltage source. m5 01gkl1px7:7fj w lhjei7x17 jwgxfetks 2)
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 identicalb,k 59.lykbq od3gvl,zg v75m resistors connected in a combination series and parallel circui95l, zgd 3go k qb.yvvml5b,k7t 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. Whichd;kz k t3b29py bulb will be the brightest?9z2k byt;p3dk


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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 three resist*sf: 21cn.tci(tixdc ors are connected as shown. With 2. c*cnc1 t(x i:fsditthe 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 switclvl w2 ;)w;hojw(zgt )h and three resistors are connewwg; vloh)zl;t )(2wjcted 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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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 res- vh*m z 4tuxke*-gtf:istors are connected as shown. With th m-*z4 :f-gtkxuv eh*te 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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