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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 electrictxfewh--w rlt3iu.)6 9pwq) 2ckos y- current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through tho 3e ct. lrifqkwpws)- wxt9--h u)2y6e 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 connecupd3wu8 dk -qka+ p*i di,v(1gted in parallel, the_________each resistor is the wd1i,daquk*pu3i - ( 8dk pvg+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 lightbuyiv4vm icflw90n 1e1k9t( 7al lb causes the filament to become white hot, while the larger wires connected to the lightby9cl0kmf 4i il w1vnt9 e17(vaulb 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 lightqr9; qtjxryy l* ; *2(-6cm1fm aggfrys are being replaced with LEDs. LED is the acronym for which one of the following choices?9t(1m*r c ;jqgy*r6mg2-q xlya;fryf

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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 andq0p i8qs0c ,rd cross-sectional 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 the new r0 qq0c,s8p rdiesistivity 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 ma:uw.l tbu,g 5kl4fx0bqip8oqnu7,8hl 08up n de of the same material. Wire II has twice the diameter and twice the length of I. uhgn0.u8u4p:,k 0lnl8uf wi7p5 b b,qlotx8q If 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 same material but has twice the dixqm q(3x3o/qnameter and half the length of wire X. If wnxo3 mq(/q 3qxire 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 an,cb8+2ac4nwt3 imj xrd radius r. This piece of material is then drawn so that it is a cylinder with new len3,w rbmj4+ tnc2ca8 ixgth 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 Edison wants to mak.cgaz. r a6si4e a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to .z6g ciasa4.rmake 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 material. The ljx5nwyo sc 46 c8*grr7ength and radius of 67rc 8w*roxsng4 yjc5each 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, arei;arx 8 jeo8z6 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 thiri x6 o;ae8zj8rd 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 9)y wod 4gnkh)diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 dw yhn4k9o)) gohm. 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 to the right. The three +p *9k y.oovgrbulbs 1, 2, and 3 -.+pokrvy* go 9 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 lefbvb*e1gpxm -6w, 6. If the current in all three resistors is equal, which of the following statements must be truepge6,1ev wlf bxm6-b*?


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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 ele 9nec1bfizn() ctric circuit composed of 5 identical light bulbs and 2 flashlighz)c1(e9 nb fint 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 rx*b1yp0j0ogj i/s* btrue concerning the simple circuit shown where re0p1 yxg0 ibjb/ **osjrsistors 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 ix.fhk6 nwasq :2.cr u-n series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connxkcr:fnw.. 2-s h auq6ected 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 4lof9 h2 a0bzb6u :liy through the identified resistor in 5 seconds once 64 llzfbbi2au0 9hy:othe 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+ys0edmolg7ji02kkioh eye3ab f4s3 c,) 1 h, resistors in the following simple circuit have the same resistance, which would dissipate the ghkes+h) 3,obc ds iyy7j 3eo,fkl2e00a4mi1 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 throug*bt2 s(kpr;,dg lt3anh the 6.0 Ω resistor is 1.0 A. What is the power su a3;bdr2(s*ttlkp,gn pply 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 connectepz e sq6s+)nw)ozlv+ 9d in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipatp +9qslzen v)zos+)6wes 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 differentxt;:1/ gvoseb1u0na 5v, yb6jqf,kxg resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipateo0 :,5 j1 ggq1ybknefat6,;vxb u sx/vs 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 rated 1200 wattssbmp5b(4 pk 6fe+efw 07nzz1xook y00 and 120 volts. What is the maximum value o0f(y s61 5km+zbnzoefpx 0 70kwe4obp f the current 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 lightbulb designed8) qm+d op22ov +bgkrs to operate at 120 volts2mo+ dp2bv q+sgkro 8)?

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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 wv0c; ls8.uob 36 watts of powerbs;wc u8 0vlo.?

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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 irwbt;l1krvj x:ah-67 yon used to press clothes is marked "120 volt, 600 watt.” In normal use, h;rwvx jb y6at- 7l:1kthe 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 be puzzg7(cq7( /bmx p4sca)n) hiroduced by a circuit containing only three identical 6Ω riuszc(hg7a 4n)/b7 (qx m)z cpesistors?

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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 th2b iawnkk92 we*kev 00e following equivalent resistances Cnkee0wv k*2w029 aikbANNOT 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 : gs ;vl1e tp/ q3bxfjv(6n7hkvalues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resist;j/f qlevgt 6 ( 17kp:s3vbhnxance 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 batt*o 5mvue;aq5very, 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 the same battery? Assuma;v5uvmqo* 5 ee 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 rd)lb *;evon*z ,c-n87szlulgesistance R1 and R2, are connected in parallel, the equivalso-7;z znd,*ln8b* vg )cl eulent resistance of the combination 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 suchivfo:e8w 7rzpq)jq/ ho5 /i3 nzry9(t that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that iwq5rhir9yoo 8 vez3tz :/ qn )7j/(pift 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 throozmo3fkk 6fl+ nf p28e:m02ekugh a 4 ohm resistor that is dissipating 36 watts of power?0olmkko+ ez:fefkf32n6p 28m

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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 ampereca m,f*a4n,u5vci )ubs of current when connected to 120 volts. If the pria4,5 m,)fb*u nccvuiace 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 to keep a 100W lightbulb lit h5dzpy98.c g dcontinuously for 1 year at a .y dc9g p58zdhrate 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 inzn;vjip) p ugs nz/t4/fa5m *+ a power of 24.0 W associ* )t nm/pnu/iapvz f+js 5gz4;ated 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 family of six owns a comdpy8:na5/ zmwputer rated at 500 watts in a 120 V circuit. If all computers5yna/p zm8w:d 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 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 simple circ7okl9q3 d rrh.u j.kn2i2 6a/jj rd.wruit asrjqrdr3.uw a h 7ko9.i2k 62/j lj.rnd 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 battery is connected to four resistors t s*s 2 bl5).vkv bjqooopf,mogc;c 48)0nqi y(o form a simple circuit as shown to tog icns)f(m 4s yvjoo.p) 5 kb8o0v ;*cbqql2,he 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 ceoe vg4hdjx; e4*ymz di56f)5g4hr3q onnected as shown. With the switch open as shown in the diagram the ammet dg4oev54rz*mih; je4 e f6gy dq35xh)er 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 and1/ goewyo+ :r2 1nmdqs three resistors are connected as shown. With the switch open as shown in the diag21go +nqyr os d1/ewm:ram 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 ammeter, a swgq09xe n;-gol m 1ege/itch and three resistors are connected as shown. With the switch open as shown in the diagram t/x1 o0 n;g-mge l9eqgehe 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 sw r 38 )sc2ysmn5h d,/ mv0ghbzl,3qwlhown to the right, what is the equivalent resistance? A2,wz ) cdyhv3n5q0 l,3ls g/rhswmbm 8ssume 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 the circuit shown to the right uq*vktxw* ,/, xy;mvewith resistanc*,k mq vxt/ wv*yu;x,ees $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identvw* 8ne4 u nj.*t .yioljwc48wical resistors connected in a combination series and parallel circuit to a voltagle 48* jjy.wow c.*in8wnt4vu e 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 idegr(wz(qgy;i,tgjlf.db :1 g) -f rb 0yntical resistors connected in a combination series and parallel circuit to a vow)qr(bg 1-fy,(z:gldt.;j0b fr yiggltage 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 diagb0lj; wo*te9k3 kg-w+z cpk9j ram, all of the bulbs are identical. Which bulb will be the brightest?3l; *tbkzjwj +w9-ke0cg o9 kp


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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 ammeteu ugpglta/b 8:,n9or- r, a switch and three resistors are connect :/ut l8,-ngrugabo9p ed 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 ideal mp 4sc9k g1nk2mal9:g, 5 ;f *qljssirammeter, a switch and three resistors are connected as showi2 skl9rg jg4lq5*,sms 1mn k :9capf;n. 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 w84c(n4aqkz (,o okdb, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetawk,okd8((o cz4bn4qer reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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