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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 c, -okhqgn9 gs/urrent 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 , -gs/hn gqk9othe 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 parallelbnx565j38d9n cs, hciml/e yl( sf 1lm, the_________each resistor is the /nf im58s93lxycs6e51 ,j mhnb( clldsame.

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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 the2srowy 4hk bh. de.ttp(3o/p; thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much;wth .3o(td2rb/4sp .okehyp 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 wirjmb 0s *k3jc,osos* -ehif0:th LEDs. LED is the acronym for0r so*:mihj*o-c30s se,bk jf which 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 resa/0 nhl:tmoc- e(wb)qistor has length L and cross-sectional area A. It is to be placm( aqw/: eo-)ch ltnb0ed 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 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. Wires)x 3b 6zl6yczr9slv a7u4gp4icf :u- II has twice the diameter and twice ygz- c3sf)i psx 46la4:c96ubr7zu vl the length of I. 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 hre.ek()ibb)n as twice the diameter and half the length of wire X. If wire X has (bk b).reei)n 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 rad xj: gs mqr s.4.4g ijcklwyfl/a5+:s6ius r. This piece of material is then dri4ssxqgj+ f.gm yj wc5s /46:ll.rak:awn 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 q/( 1k7vv3bjkz u*2smhzc: pb) b n6bwEdison wants to make a brighter light bulb. He decides to modify the filament. How should the fil)hbbzs czbjk k 1 6q2v:u/3*wmp7vn(bament 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 resistors are made of the same materiawi q(3vhx1l*pj:spd 7t(kf +0o pssw1l. The length and radius of each 1wqh1p( sosdtils7 0kv+(wp jpf 3*x: 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 ,0vho quh52t( osc es+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 resistanchqt(vhc5s2 e + ,u0oose 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 accompanying4sd-oo : b0x, bl e6qts:oacu, 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 readinc,4a0sd:tb- b ,ooquso6el: x g 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 bulbs 1, yligl0u,.d5v)i lks 62, and 3 - represented as resistorssli 6k.u 0)5, gyvlild 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 in :6ne7vlfkbd7 n -sg,dall three resistors is equal, wd g77f-e d6sl,nbnv k:hich 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 circuit compo9w8*q ,gbxzkr p syr;)sed of 5 identical light bu 9wz,* y)s8pqg rk;xrblbs 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 k.h3zzrvt( g.NOT true concerning the simple circuit shown wherez.h.k r3tzgv ( 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 s.h.+ maf7 r3y qo9o)pdahu0juia2) s+osr n(ceries 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 each other to the same battery, which one of the following choices best represents whatm.osy +ra )ifocu 0qs .)(up7oh+j rad3hn 29a 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 cou;wl f3pw0ryo ex,+u8tlombs will pass through the identified resistor in 5 seconds once the cioltr,ye +0 p xu83ww;frcuit 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 resistors in ymccja4xw6 ;(the following simple circuit have the same resistance,x6cc4 ajyw(m ; which 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 ci q0d u,f3: ic3qca/yetrcuit diagram, the current through the 6.0 Ω resistor isu/ a:t yeqcqfd,ic 330 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 3g+e8t u +g+ 3pwgduziR3 are connected 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 d8gw3+uge gp+ iut+ 3zpower. 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 andR36p.cjs r kjitnf;4 -7h are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What r- jjktfsn c;p.hi764is 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 thebi5jt9 y+dahnd4ti ya.2 9bt0 maximum value of the curreb9n5it hyt.a4 2y+ a0djib9dtnt 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 designed to operate at 120 hoaqg,c:u5;f vo;f 5 ouagch:q,lts?

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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 r0(g(,gbh aicqesistor that is dissipating 36 watts of poweb (gi(gh q,ca0r?

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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 us8nvvx u)ecmx-py 9 1r:ed to press clothes is marked "120 volt, 600 watt.” In novxn18pe9c-vyx ) : urmrmal 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 be produced by a circubvvo).93x tvg it containing only three identical 6Ω resis.9ovtv3gx v)b tors?

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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 the follbcra787k7w jl6mn9vj mcj3q+ owing equivalent rb+39c6q77armj 8 cj7 vlknjm wesistances 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 can be connected *47 srtkwy5xy-8lco i together in different configurations. If all three resistors are used in a circuit, how many different values of to 7r5yy4xlis tcw8- *oktal 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 resicqt0 s7xp5f 0eqh-ps.stor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipat 0ht .0ssp7pc5qq- xefed in a circuit if n identical resistors 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 1eyg.;*v dzrlresistance R1 and R2, are connected in parallel, the equivalent resistal;vr1y*g.dez nce 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+bs0wt .mg 6zr such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amour6m0z.+twb s gnt 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 is dissig og.ijt*:z2tp rk(qwj2js o r98 *7lcpating 36 watts of pgi*r7wlo2j9 spz j (:ko8 rq.ct2jtg*ower?

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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 current when connected toib )k;2 ,-.ecmdas*m mv:.8 xw pullsu 120 volts. If the price of eewsv*a 2xl,csi8 dm:.)mpm .-u;bul klectricity 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:go) -)lf osmp to keep a 100W lightbulb lit continuously for 1 year at a rgo) mlp so:f)-ate 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 po2bie (gi+r5n:t k p;erwer of 24.0 W associated with the bulb. Which one of the following choices bestkrg 2(;5ne erti:i+ pb 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 famijgwaf+. b1vh/ .sddm(ly of six owns a computer rated at 500 watts in a 120 V circuit. If all computer v. /m1.dgbj (fhw+asds 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 s/4 28c-dwwtkmqph d; timple circuit as shown to the 8 2mw-4/hcqptw;dtk d 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 conne8gy6d+hd,9v txv; ; jz5vf glwcted to four resistors to form a simple circuit as shown to the;dg5;vv d 9w+hyjlv8 fg, zx6t 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, 1s6h m s,jjz:utxbyw0:j)xb) a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampuwx6: ,b0)t :)zs1jhmj ysj bxeres.
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. f8ukwx - (n5+yp3xlhtnv3 voter, a switch and three resistors are connected as shown. With the switch open as shown ivhv (kpnt+3-yolunf5 .w 8xx3 n 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 ammeter, a switch and three resistorsycp vl+143wdb1b1i q :nlj z+i are connected as shown. With the switch open as silbvil1 wqz3c4+p d+nj1:y1 bhown 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 circuit shown to the right, what is the d0zxcasz,48z equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisdzc z ,804xzastors 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 cy5(o iq ;vup8 auc lqrm5(;y:pircuit shown to the right with res;y5 v8pl ;a:c5(murip(qy uoqistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho1i.utjy / ong-ws five identical resistors connected in a combination series and parallel circuit to a voltagion/ tg1-j. uye 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 cd+ tyg 5xj wa()7tcz(identical resistors connected in a combination series and parallel circuit to a vo xc(jc(a y5gdt+7)tzwltage 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 diag 8nlmf k9c b)i0d+8lgbram, all of the bulbs are identical. Which bulb will be the brig m +c0k )8fglb8ndb9lihtest?


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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 andb n ;smp)8kucr5pt+ d; three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampenbr )+5tcuppkmds; ; 8res.
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 and three resistors are *b-hgf0kknnj66 sg1lconnected as shown1-n *bsgk6h gklnj60f. 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 ammeter, a switch and three resistors ;9qik- :s ii.c2dfcks are connected as shown. With the switch open as shown in the diagram th.cfd-sk:i 2s 9 qi;kice ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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