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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 r3rvwlsvi 5x nx0e+7h: hw60q 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 the electric field t 6w+qir5h7: x v0xervsln w3h0hrough 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, ntnnwr1 qww:-yj.* -sthe_________each resistor is n- *nynw 1wjqwst.-:rthe 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 causes the filame:udj 0/4i8bbu uwk5eknt to bec0u/dbk4i j 5kwu:8 bueome white hot, while 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 household.qtu 0 3g naqm l;9cs.wml)tx9 lights are being replaced with LEDs. LED is the acronym for which one of the fol)gm0twlqa m9s 3c qx9.l.nut;lowing 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-secti +l)95mh ylljvonal area A. It is to be placed into a circuit, but it firyvm hl5j+)l 9lst 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 material. Wire II has twice twf1dl px-y.8e/o6zr3pg7 f-5qeadf ohe diameter and twice the length of I. If I has resistance R, gqwl 3x/e6 f7yzpoepf-.d da518o r-fII 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 twicyh *mpetv2 t5pk9zh1 /myt9z ;8 x62;glzbais e the diameter and half the length of wire X. If wire X hp; t95m26zpibz1s2x mg/8y*ay;tk tezv9hl has 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 has length L an8p;-m yl c8i hqpxs)4fix sx:o8p)p )od 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 materials8s ;lq-p x4y8fph)x iim)px:8opo c) 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 brighter light bwz p9u/x;ctuso7j/l -/ky 4aculb. He decides to modify the filament. How should the filament of a lightbulb be modified in order t /zls;/cc 4/kxy7uajtw p9-ouo 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 mate7b3/btneveqx 3 d +1xjrial. The length and radixbnedt+3/ej3 b7v 1xqus 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 resiep/ hzsl5ibdgbp )c+e 824hy7stance 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. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistorsye)dbbc+hph5/l8 ei74pg sz 2 ?

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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 ac zwp2v;;bf 05nmmyin/us *8+kxjdoi :companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readinb xp i8mwjky;n vdu5+ 0n/;is:oz2 m*fg 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 s9sfpjq tk9(2the right. The three bulbs 1, 2, and q9 t jf2sps(9k3 - 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 circuit at the right. If the current d. a/zcqc jg5* xps-f;kp4dsd*m*on4 in all three resistorsn-4k xpjc4f*; sdmpa./*q5sozcdg d * is equal, 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 circuy1*gdxm hu+j 0eg;y,nit composed of 5 identi0 xghu ;ny,deg*m y+1jcal 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 5zc62nl db/ lmje.k*ystatements is NOT true concerning the simple circuit shown whel6*2 jbz .lkey5nmd/cre 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 connected in series to a battb k /(yfvn 6mmhf;9js-ery. 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 followim-(fk y f/bm9vj6shn; ng 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 jzmw :5iq vg,;resistor in 5 seconds ;wi vqj:,5mzg 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 resist b0yl 4;j/qagpors in the following simple circuit have the same resistance, which would dissipate the greatest y ;4lj0aq/bg ppower?


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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 0pdo//rlwg.x ;fut :w the 6.0 Ω resistor is 1.0 A. What is the power stx0 /p/o ;.:lgud rwfwupply 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. a 7m9ebsohak1de/( x, Suppose R1 carries a current of 2.07b/k( ox 9a d1,easmhe 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 5 iwdbj:+a0vlpb0 gh:connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thep5hb0b:+ji d0v agl:w 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 xi+8awu1cps; (xgo+ b is the maximum value of the current under these conditiogcwi(aup oxb8+;+ s1x ns?

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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 qxgm1 j:9)p/ia hcghkmj3 pm,755jr s of a 60 watt lightbulb designed to operate at 120 volts9 gm/h :hc31 gj 57pjr5) kjsiqx,pmma?

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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 that isjp9n g)he2a:qdazpb ys41oa4) s8+qa dissipating 36 watts of powepd9o:y+zha naqa8)sej)4 42a1sgb q pr?

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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, 4vmgi nr3t-f) 600 watt.” In normal use, the current intn mrg f-i3v4) 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 follo 4 - vv9 th3rfl(3 p5q6qc:bayjsluv(uwing resistances could NOT be produced by a circuit containing only three identical 6Ω resistor calrbv9(3 3j 56v(-p4uyqt :fuvlshq 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 threeij (ef9 +h)bknfg, 8ld 1.0 Ω resistors. Which of the following equivalent resi(lf9nd8 h fe+jk,gib )stances 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 valu puljsa 7yb8jj+*t,q 7q;5zsoes can be connected together in different configurations. If all three resistors are7jso ,bayqj*szju7 t8l5;q p + 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 po 0j rr t96zqwdx31gl0 yjf*)aswer P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical ress wl* 0jqdgt3jr )0zf 1ayx9r6istors 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 R24( r 2m iekyne,b5na2b, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the fo52( ye,r 2n bbe4amkinllowing 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 tah ;eqau56:0;z uan- yh bdoq9hat it has a resistance of 12Ω when operating at 120 volts. What is thaey:bnqu6 a9oh0z 5; uq;hda- e 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 ohm resistor that io l( *2jad 1jcf0o.vamx 0nlu:s dissipating 36 watts of power?jva*fm0axdo(c.0u 21nl: o jl

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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 drkgw yjs7*yvys),9v3 mz0str7 aws 13 amperes of current when connected to 120 volts. If they jstv0ks,*y)zyg97vm w7r s3 price 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 mndu- z3 x9;wwmuch would it cost to keep a 100W lightbulb lit continuously wmud-wn3 ;xz9 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 of 4.00 A through a lightbulb results in a power of 2 b /)rten62aja4.0 W associat/aarnt)6 2ejb ed with the bulb. 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 familyefsn81nk r0d: 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 a801n n serkfd:mpere 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 resistors to form a simplex0id4qu byn-gu -gj*q:i0of- circuit -n q-dbofjg*i0 uiuqxy:g 0-4as 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 battw-ps ynrfcc,.r 13c f,ery is connected to four resistors to form a simple circuit as shown to the. wcnfr1c-3,r cfysp , 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 swibvh wms,1 83e*k pszl7tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperws ek l87v1sb*zmp,3h es.
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 ammetesga-tr0o06 xb r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re0-g0 bxas6ro tads 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 an*a 4a*:uw fg/ n9s t v)fijakv)/+rlokd three resistors are connected as shown. With the switch kr9w /lf4vun /*: aova+*gif tska)j)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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuitwypgg ;:34 8dmhlv*g1.kwqo y shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has nmvk ydg*.w1g3 8gp ;ylhq4:o wo 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 shownyta nsgh;ajkziu/x5;: g ,:h ) to the right with resistinzh,;k;t: hggaa)y/xjs :u5ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 rjzr.y 65s/ zflesistors connected in a combination serl.z6sz5 jyr /fies and 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 idenaf*u6 gwm)b2 ttical resistors connected in a combination series and parallelbafmu)6 tw2 *g 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, alvmd z. 9)chx k/1*zjpsl of the bulbs are identical. Which bulb will be tp/zh1c )vs9m.dx *jkz he 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 ammetery+c+7nnrx-jpus)r jc 7sf *u2, a switch and three resistors are connected as shown. With the switch open as shown in the diaj nccx+j7+*y2s ur7f s-pnr )ugram 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 amx :vl.4 dou3oometer, a switch and three resistors are connected as showndlox.4o3o u :v. 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 am i y,jpcpktxtr;e )b6f +9(mg(meter, a switch and three resistors are connected as shown. With the switcheb;pj6,mrit c9p(+) yxkgtf( 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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    总分:50分 及格:30分 时间:不限时
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