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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 co o07u7zx diub;nnected to the battery. Which one 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 resuoi7x ;z 0d7ubistor?


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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 paral60e,nj6vr,g i4tme nmg yj3jr9e w -*klel, the_________each resistor is them4y gtnkmnv ,9 wer3ge ,0 -6jj*rji6e 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 wireqj.(p7ho3mlhqee d61 of a lightbulb causes the filament to become white hot, while the larger wires connected to the lig3 ep(7 jm.61lhqohdq ehtbulb 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 being rpzqp nn +c3)9b.q iu1yeplaced with LEDs. LED is the acronym for which one of the following choqyz1+i cpu9. npn)3bqices?

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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 resiofu5 h:;)rlv3 kfnf(n2 +xswn:p k1yi stor has length L and cross-sectional area A. It is to be placed into a circuit, b(;2:xl +1yv :o)h 3 ikwsfnn5fukfprn ut 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 ma /8nyrhc66 eul0*cu eaterial. Wire II has twice the diameter and twice the length of I. Ifun c 8ar*06yu/e6hcl e I has resistance 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 sa/ 3t-/hbmgbbb6 l7y2;xa ysinme material but has twice the diameter and half the length of wire X. If wire X has a /sab xm3-gtbh;i 7byb6nl2 /yresistance 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 .e zyv +/ppoge/1pw4/vst-zj radius r. This piece of material gev. / tp+ z/zyvope p14w/j-sis then drawn so that it is a cylinder with new length 2L. What 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 Ed3z-qqn+jxb.o ison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in 3xoq+zb-j q n.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 sr i6,j)onf8chame material. The length and radius of each resistor8o njfci )r,h6 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 ba2r7 l7f3 k9hef lwga)rttery in the following way: “Two resistors are connected in series. This combinatioglar7) wlr2h3 ef7k9fn 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 circuit dibik k1,5 ;g /ebog:v+rm wlej3agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The a/r emk:v;ji5k gg l+e3o b,1wbmmeter 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 right. T, a5.:pqppg.sx; nmnf he three bulbs 1, 2, and 3 -x g p:mpq n.5p;as,.nf represented 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 electrical ciragagr::/zdhai/fl j-m(gb q24 te29t cuit at the right. If the current in all three resistors is equal, which of the following statements must be tjf/ ( mh 49lie- t/agab::rdqtgg za22rue?


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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 repzz p4z+7vles 0resents a simple electric circuit composed of 5 identical light bulbs and 2 flashligszz v4+0 el7zpht 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 statementsrrt u6b+m*vlrjy w:mx7o: r-)fv: m3t is NOT true concerning the simple circuit shown where resiso7w + v6j*l3ur yr m:t r-f)xvmb:m:rttors 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 connected in series to a battery. B n:g9*)) t7o+lmshgn bsxjh 7nulb X is brightgnns 9mxgs*tnh7+bj): )o7hler 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 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 identified resis4pm.k7,; ep tx2qqypp/vy )zj tor in 5 seconds once the circuit was qpy2 p/m qp,t z7vp4;) exyjk.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 have thekk(l;4(s yomo same resistance, which would dissipate the greatest powe;m(4(k oy ksolr?


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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/mwkadw.ffd 7t8 l07j through the 6.0 Ω resistor w.ldka/ j7f t80m7wdf 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,3zox4fp +-bii zts g o63gf3e7i:kav in 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-p s ka3ezf 6igo xii7gbz:,tv+33of4 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 pat zlz1*0t8. jppmlym cr2a17 xrallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates ttylz2.jp 1a8* 71m clxzpr0m6 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 v8 u kn0gtg;k(maximum value of the current under these conditio80vutg ( g;kknns?

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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 l3 t:tz) /.) is1erx: cmnslrcb7pr( tlightbulb designed to operate at 120 vs7ce.)ltl(3 nrtrs:xpmr)z :t/cbi1 olts?

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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 ohvpthq7a*x x3)5 o mbj3m resistor that is dissipating 36 watts oqpvt53b*hoam7x3 x) j f 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 marked7 :e4 obaa 2n:xafgq-9lre (jr "120 volt, 600 watt.” In normal use, the currental:fjb(r:xa72 nre-eq 9oag 4 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 b8ghvh;b:wdi l phd 1j3iu:35 ke produced by a circuit conb8i: h315;jpi hdwu:3vhkld gtaining only three 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 + fes1:vb9k n b5joediz/1- irΩ resistors. Which of the following equivalent resistances CANNOT be produced: s9z veb 1-ikjfr/io+51 bend 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 conne72 jxmz2qq9 xb*b0w wrcted together in different configurationxm2rx9j0q b2qw*b w7zs. 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 2 ;11z dfbyajhl3)ognto 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 usingondg1f1 3al2j;y b )hz 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 resi:fjz ;hhv)uv6stance R1 and R2, are connected in parallel, the equivalent resistance of the combinatihvjh6 z; u)v:fon 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 hru7 x84p)n-tsh p7fj designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm4-n)rfju xhh t 77p8ps 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 resistora7n kwee 77lr/ that is dissipating 36 watts of p7aklw/ n7er 7eower?

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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 zq7b/o+kkspn .ay yz5:fdy) * current when connected to 120 volts. If the pricebkynyak fy: * 7z5d ozq)/+.ps 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 tb(le* (whkk ,bo keep a 100W lightbulb lit continuously for bkke,hw b*(l( 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 : emrs3)aq+caA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choim:a sq+e)r3 acces 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 l q7j:xs9p0mmeyk be0okp287a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a 9ej:p87qo7yb k 0s0m k2pxlmesingle 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 res +kj3oblj6j; 9p wvjklx3(rj.istors to form a simple circuit as shown kljjw6j3p9l;kx3 v. +objrj( 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 form a simpdlbf9o52xxu g w(9 ex(le circuit a 5x(2x9wgo(lf 9uebxds 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 switch and three resistors are ccnva o4- i,il .ar 8qj9h3u0b awrnx 16(nse+fonnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.4cl 0ae9oa brxj+8v6h - q.,n1nru( 3wfsiani
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 a3 b/herl,jz323 b8r s) kswfcure connected as shown. With the switch open as shown in )k /jr3s web 3hul283fsczr ,bthe 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:l8fs 6pum1msx; g -2cj9nmpmr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetempn1 :ml8c fgj x- m;us2mp96sr 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 resistan5jjik43-ngdgr .ohakgf-may5- 96 w d ce? Assume that all wires are ideal,krm6-g-a3w5n i -9d 5aojg gf4kydjh. 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 the circuit shown to the right withyl3p9nsadr 1 pu9r-w)z td412: tqdg a resistand-w r9tgr y4ndda:p l)suap19 zt32q1 ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showm*1 k5ns vv.ny/eyd f4s five identical resistors connected in a combination series and parallel circ.y*4nvs/ mf5dy ekv1nuit 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 b/sqn5y a da ;eq(d.dr6elow shows five identical resistors connected in a combination series and parallel circuit to a voltage sourceyda(/r;q q6.dnd se5a .
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 jap j /g1 lkx;hr0 73nh4xkre,nh1gr;bulbs are identical. Which bulb will bea7j;erx p1,;1h/r0gngn rk3 xlhk hj4 the 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 ammeter, a switch and three re5r(e p7i;yefn sistors are connected as shown. With tn;7priy e5(ef he 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 ieqjo0o0v5 hh2f9ti s 7 2hrf5edeal ammeter, a switch and three resistors are connected t9 v2rho0oie7 hh5f5es02jfq 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 idealcytp.hc 4f 0b8 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reypbht4. c 0cf8ads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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