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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 cur tcc d-f uoxn5 gw*cmnb*v5n.yi, ++0mrent exists in the metal 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 through the inte-*n xumt0gw+y5 vmc5n bc icf d,n+*o.rior 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_________each7axz; go :uk*n.pcdcay74,g d resistor is tcg7dz :nucxk4,. *yga d;aop7he 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-ehm a3hs,0 gdltop 4 +m1szmjr1yrt-5 5,bye lightbulb causes the filament to becomeb- d,yo,z+sh0m5mr1-1pjlgyham et tr e45 s3 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 lights are being replaced with LEDs. LED isa+9mr 6xy ewz2 the acronym for which one of the following z wmxa62+re9y 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-sectf(gea)5jt(t+ ng7msztz w6 .cional 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 ta6.nw m ggtf (+s7jctez5(tz)he 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 oofg69 nk 6vz,yf the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rfg 6ok,9znvy6 esistance

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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 materiall9tk.xaw t4 4f but has twice the diameter and half the lengkw4 lxtt f49.ath of wire X. If wire X 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 and radius r. This piece of,qf9 dk2kepuxj, sh;e 8ba.vb:mr)9 h material is then drawn so that it ismhhbsp9 jkd;k ux,ea v .,rq f)8:9be2 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 Edisooy2)y74 a dog3afame6n wants to make a brighter light bulb. He decides to modify the filament. How should the fioe7gm6afoa 2a3 y4)dylament of a lightbulb 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 l9gwar5ys1 /k t6) xojd;m;g6sh y+t0qz6wfc resistors are made of the same material. The length and radius o)sj/ st61c; hk0d9x6at; y zqggmy +ww folr56f 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 resistance R, are connected to a battery in gvqy ( ktp,0r,the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor.y,t0r,kv (gpq 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 diagramqvhb-g a u7hl.z8c7v 9 has internal resistance 10.0 kW and the ammeter a qlhv-7bu.hcz7g8 v9has internal resistance 25.0 ohm. The 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 tomj6f )j45cwh1ohoy w4 the right. The three bulbs 1, 2, andhm1f54o )wyj 6jc wh4o 3 - 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 a*fcjg6e4 v 0ypv6ntm)t the right. If the current in all three resistors is equal, which of the following ste4gyfv* 6n 6jv 0)cmptatements 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 circuit composed o0hp2a-( cgqbtcjxn 7n 2x4 2xiga12mo f 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs)-2mnci0a q x7hx 41gbo22xgp a(2tjnc
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 ceesdz. 2z .gxvz (u-*goncerning the simple circuit shown where resistors R1, R2 as2.zze(*xvg-g e. d zund 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 serien8a.dklb d b kdkaz9xi,9q-*8s 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 eac, -*b9 kn.ka k8qz8adx ibddl9h 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 idck,eygkl3zvt fe4pf 85; 4b.oentified resistor in 5 seconds once the circue45f v cot8zkfb43, pgely.;k it 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 resistod) cheo4sk *7ars in the following simple circuit have the same resistance, which would dissipate tesok a)*hd74che 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, ( s -5bon 2zpxn.bheu+the current through the 6.0 Ω resistor is 1.0 A. What is the nu5+nhxo-e.s2(b z b ppower 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 z*tdpwye7c.h (vhhc;e c7+/b, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A77;ze/t hch*vw b y .hdpe+(cc, 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 to a7c(kr,7l-i qtctsx 6hfcm,w 0 battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curren,st6w(mirfkl, -0cxq7 cc ht 7t 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 ( j8ucztoel:+*jr pw 9is the maximum value of the current under theslz8e9 twou:jr( +j*cp e 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 desi)h 5ls(gew2xl .cxbu/gned to operate at 120 volts s5(e x.h )wl/b2lcxug?

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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 is dissipating 36u*13ir vq,h zn wanv3,iurqh z1* tts 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 c 6s* lasn*ral4lothes is marked "120 volt, 600 watt.” In l4ssnrla6 a** normal use, the 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 could NOT h3k5 p8/t w2gsg+xd aebe produced by a circuit containing only th ehk/g 3xt8ga dw5p2s+ree 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 i.ft:*o -2zzutt qc8h Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thri -z :.htuf* qz2otc8tee 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 connecte dt5m wvi+7gmf3u nl2+d together in different cof gmwv75i+ 2mndt ul3+nfigurations. 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 con ox9vl0irl)k 0nected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resist) orl 9k0vi0xlors 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 pagi6x 9q2x5 f30fltoqw d,wn7trallel, the equivalent resistance of the 3q5 6df2wx,tng qt0foxli9w7combination 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 resistance of 12Ω wh,8,/mqm :nmo lpkzd hh ;9o; zhg,gyx+en operating at 120 volts. What is the minimum;/k xgq;,mo,h:mzomdp9hgny+8 l,zh 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 resii)n/ vqg2io:hqq46 dlstor that is dissipating 36 watts o/lqhio6qq4nd v: 2gi )f 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 13 amperes of cuyz99 otp o63 h2dz4nmlrrent when connected to 120 volts. If the price 42oyl9nzo m z6p9td3h 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 w2 7yuq8fm- qllm 2tq931hinihoxr;v/ould it cost to keep a 100W lightbulb lit continuously for 1 ytuv 2qhniqhl3y8 1x2iqmlm/r7 ;o9- fear 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 resuc2w.ffcwsg y/u, 4 ::lbc5gnblts in a power of 24.0 W associated with the bulb. Which one of the following choices best relwf gu.542nscwg/cy:b c b:f ,presents 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 a c x9w:7 3n*nf nhmxg9enomputer 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 the computers can be operating at the samn9mx:n7x 3*wn 9 gnfheetime?

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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 conneq:(j6t /o8ha lo .kxivcted to four resistors to form a simple circuit as showlja. k8othv6/( i:qxon 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 simple ciruyj2f : wa e5fgf29xp4cuit as shown to the r4g2fyp9f ewxfu: 5 a2jight.
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 resistorrnka +x qg.;-ls are connected as shown. With the switc-+ .;r axlgnkqh 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 amme/6 rbns- g1jgbter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the abgjbs g -/nr61mmeter 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 battdp r ;g1r2fv:eery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetrre:2 v1; dfpger 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,pr*s+h 1gyz7 h*/whewg+5 ycw what is the equivalent resistance? Assume that all wires are ideal, the battery has no igsc/+h wh1y *gzw*h5 yr7we+pnternal 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 avi*z 47h :;c*iu +cuiybc,q eresistance of the circuit shown to the right with resistances,ai ; yibezi**uucv74c qc:+h $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ini: h 7+is wcz:3(dzdde a combination series and parallel cizis3:+ci wd he7: dd(zrcuit 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 connecu;pc(h qe y:2xted in a combination series and parallel ciq2(c hxye; pu:rcuit 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. Wh exaxk::t6 bek/g*l 1/)rmumn ich bulb will be th1*xextu6k/r)e:b/m g: mank le 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,8 4j-uohfp fj cc3d:d)si wk,3 an ideal ammeter, a switch and three resistors are connf34j83:shd kucow -c) ,ipdjfected as shown. With 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idbc zrnqd3cerab.6,4; eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramadr;c. c zb b3n4r,6eq 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 resistors are c kzs5y /2qznu .2+csxuonnected as shown. Withu.y+scq 2 ku zx/5ns2z the 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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    总分:50分 及格:30分 时间:不限时
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