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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 th*-h3ek:uinu + kw(gs (hk2haze metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the diru(2huz3hs:(i+khag-* nkwk e ection 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 parallel, the_______ a(/ego t z/z,(uqpu9p__each resis/(pzut9 g/opze (qa,utor 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 filament wire of a lightbulb causes3zes 99z e10r1bmjdyc the filament to become white hot, wh0 z1sjzm 193drebey9cile the larger wires connected 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 ho7y3: /pfp inydusehold lights are being replaced with LEDs. LED is the acronym for whicp3fny/y id7p: h 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 c r xruc d/sv(+:dy6r7 jbmt14uross-sectional area A. It is to be placed into a circuit, but it first mu ud:um6 s 1x+cyrr/vj( d7rt4bst 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. Wire II has twice the dfm ufii; gq-2;8 jh 7+a hk3vftank7s1iameter and twice the length of I. If I has resistance R, II hav 1jtnm hf+kk8;ihsi ;f7ag q237ua-f s 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 tzk0rsjtdc ,pi.b1q(+wice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would hskrq(pi tbc. +zj0d 1,ave 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 resibjm plschsjt)pm40 3n(1i3/ pstor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Whal ss3( 0 ip/np3bpmh4 )t1jmcjt 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 wants to make a bright3 fd hk 6s 2i3qk qq72w76)y2gomvslzver light bulb. He decides to modify the filament. How should the filament of a lightbmv3qqh2si yfs)766lgqzkd37 2kv w2oulb be modified 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 n8f)+2hkjy3 cy0 ubpy material. The length and0kp + u8nyf)c 2y3hbyj radius 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 resistantgi;,+jq5of zo:es . nce R, are connected to a battery in the following way: “Two resisf qn+:oij s ge;,o5zt.tors 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 y0bs*tyfz(5uew5 .nhn 1g, vn circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Tegv uh,5s*zw5.yty0b( nf1n n he 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 f; ;ej9e7rc 1nk:qe kpright. The three bulbs 1, 2, and 3 - represented as resistors e;kpfek71:e q ;j9nrcin 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 current in all v o:b 9hn:rnc1lq.m,ethree resistors is eqbnn or 1v, mh:.q9l:ecual, 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 represents a simple electric circuitih0k6+r)vhhx 3fe8p v composed of 5 idevhhr 3 peifv80)k6+xhntical 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 statements is NOT true concerning the siukmjsf v).d/f.k)i;9 y iff44qfex ,smple circuit shown wf/k.mqf. ffx)vsji ufe dk4) s49i;y, here 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 conh7i4el *jk7iwnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements a7l 7iki he4jw*re 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 through the ident- *qb9-o..ihs,cvbeg e : caksified resistor in 5 seconds once the circuit was closed?9ks:c,.* qh .sobv a-g-ciebe


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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 4jri,f ;lqh*5o+ xvmqsimple circuit have the same resistance, which+;5fiqr4 jmx ,qlovh * would 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, the current through 5,djdx*4 /0q hpkn ufuthe 6.0 Ω resistor is 1.0 A. What is the power jkq f*5u unh/dxp0d4, 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 a battery. Supk+n4u7zi-lf t;g2oro 5r5a gopose 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 ft2 u+ 57 ioro ;nl5zkar-ogg4across 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 resistor2+ )vjgq 91zbiiwxf +ys R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currenf z1j+y+xwig2i9 vqb )t 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:ia+7t,a8sn l fzr1yk is the maximum value of the currenzistka,f:7 1ay8l r+nt 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 lightbul i +k 5/s/hm5f4hdpfswb designed to operate at 120 volts 4d5simhhf /+ksf5/wp?

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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 res3 qj5brvcg.ncvdb5+ 6istor that is dissipating 36 wattsrn6g.c5cvv3db+ bq j5 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, 60pg u. yg88q7+:eiguj h0 watt.” In normal use, the current ini eq:g8g8.uu7j+hp g y 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 re6ko+ )u0bpg)8maf4xbc y uk e(sistances could NOT be produced by a circuit containing only three identical f()a8p 4g)ubxe6cy mb ou k0k+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 r 0w 9ei snh,tz6mjuxy66 mf4) resistors. Which of the following equivalent r6m9)s,ft6 6 m04zijnu whyxeresistances CANNOT be 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 different values cfrm1vvabtxhn 8*0 /c3an be connected together in different configurations. If all three resistors are used in a circuitvar8h3mn/ v bt*x0cf1, 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 batteag8d5c9*4gs dlax0aw ry, 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 g89ga5a*c xaw 4ddl0sthe 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,sqj4jyh; (np nnc .*)c are connected in parallel, the equivalent resistance of the combination is 5Ω . Wpy(s)n ;qj .4jcnn *hchich 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 resist03c8 vlsoj3 ,dlkz6dtance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take toz 6kl lodd8t3svc03,j 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 thaz)qp un*c yuw5yv 578ct is dissipating 36 watts of 7)vwn qz8yc*cuuy55ppower?

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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 heatev(lkxyb9w3kj3s-do 6 :p 0 pjcr draws 13 amperes of current when connected to 120 volts. If the price of elecy 9o:c3l6dpbsjvp x(k0 j3wk-tricity 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 light/)z2an0z i g9pdwk k2q iim;y6bulb lit continuousaki60)gywkq92d /m n; zi2zpi ly for 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 ofag:vy13azec- 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which on3zavea g- 1yc:e 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 fami z p(kl,yg;ak.ly 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 ta zp;.ylk g(k,he 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 resistors to for yyl+)ovg 34;l*k ;zvtptm:ftm a simple circuit as shom ttvo;3 lvt+y)*fgy : 4zlp;kwn 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 resistors to -wr 4qqaloqyc6bio 8ehi ( ,25form a simple circuit as sq546q- whyoqe(o rb8ical, i2hown 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 resistopsc:9 t- tosr0rs are connected as shown. 9css-:p 0ot rtWith 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 ammepemaawi +9ka *v djem(c*-ne:*1cv33 vjjm:gter, a switch and three resistors are connected as shown. With the switch open as vd*jmeejcmcvpma9j v e*n3 +1* a- a:gw:(ik3shown 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)/:kwv vbftso* u*ma; ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram fv)v /*;mtau:owbks* 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 showpx9db rhh; u78(guu- tez;tp1*6abmiw:dn5i n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi5i:i7x ungpra8h (bbtmw6 z;u;udeht-pd* 19stors 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 shown to the right )rus a*.tq(zup*z hq * with resistancesuzsq *)hq.*pa* rt (zu $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sm;)b byoah: w1 .hdla(hows five identical resistors connected in a combination series and parallel circuit to a voltage so:( .ab;m1dyo whhba)lurce.
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 sho4nqw9hm4xw60pwy b z: ws five identical resistors connected in a combination series and parallel circuit to a voltage sourmxnyh0 wq6bw94z pw:4ce.
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 oql82xs91kee m20y oqov/ 4 ni diagram, all of the bulbs are identical. Which bulb will be the b8 2oon1 sk/i2mvyelqexoq 940 rightest?


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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 resistors are1 /filat xfjf ppn2l +,7hg(2a connected as shown. With the switch open as shown in the diagga fhxp,p(2nl t7a jf+/2i1lfram 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 and7 cy2-g r8ogxcn6f2k3 t-x dpx three resistors are connected as shown. With the switch open as shown in the diagram the am26npxofc 7tr 2kx8 g-y3dgc- xmeter 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 swv u(kv7s8jmq0itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.8k( su0vq7m vj0 amperes.
When the switch is closed, what would be the current in the circuit?


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