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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 circui;sx yp2in j uh/6i(o+v9ov9h f*sq/gkt shown, an electric current exists in the metal resistor connected to the batter9u(hn+ /;ok hssqx f2vvgip* o6i/y9jy. 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 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______9wr:yil. t*naep3c, 2 zi+px i___each resistor isnx3t p*e w9r2 iyclpi.,z+ia: the 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 r 5v0-yo dy+lofilamedov5oy ly-r0+nt to become 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 beinh3/wu/eqeup;5 rqua 2g replaced with LEDs. LED is the acronym for weh a5 2/;3 ueurq/uwpqhich 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 resistor hast2i6guly+ mm+2qbae + length L and 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 resistivity to the old resistivity of the cyliqm2e+ b t+ugai2+ lm6yndrical 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 hak7k3jwy-93ec* +l tuz8ig4fauvu b o w9ze1q0s twice the diameter and twice the length of I. If I has resistance R, II has u9 01b4 3z-k7wtu+lie 3vwagucyz* ej89k oqfresistance

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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 madehxmdsw *f.0tjwj0*b tun) )7g of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would ha 0j .gw0ns)xu w)*j*7dthtmfbve 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 ofwsp0/ o 6sl+lm material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus0+w spl s6lm/oe 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 bulbot9i)f cxd)2l. He decides to modif)9xt)2cif doly the filament. How should the filament 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 samewj.jkt/i:r5eg8kgrq v+j7oo y q3nv(h9q9 9c material. The length and 7o5cj jk/.qjg8r9 rk9:t+v 3ihq9yv on(qewg radius 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 resistance R, are connected :.k*ee+n.mqbibv6 e cs9.mtpto a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third b+pqem.9e mntbi*kc e.v .:s6resistor. 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 diagram has internal,s a:iqkv/xj) kc 5ur3 resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmetercv): q5sirx j3auk/ ,k 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 bulbs 1, r*exp-2 px 6vmrd6/qc2, and 3 - represented as resistors in t */eqdv xprmc6 xr-2p6he 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 electn)i)j r 8ze*lyfl h ,+xn4egxhby++o r(t(3tnrical circuit at the right. If the current in all three resistors is equal, which of the following xzg )3n8b(r+rnh eyjx +o+le,tf*t(l hiny )4statements 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 a j+ nrweg;5lm.,0 vxzft right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cv ,zgwfj. nr+xeml0;5 ells. 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 sta s3x/u rbrx+2xtements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3+ux s/ 3xbxrr2 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. Bulb X y.g zqz k 8a1cozpacc28w/q 27is brighter than bulb Y. Assume all circuit elements arq7.o p8cz/g1wayzc q8 ckz 22ae 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 th j+xxlmpv hl( 9g81o5srough the identified resistor in 5 seconds once the circuit wal1 5mglv9ho8(jsxpx+ s 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 t9a7rzds2 5eikev c)hont9z6z x:8* ehave the same r) xr7eetk2vot9 59n aczzisd*8 ez :h6esistance, 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 accompanyil32iam 8bdl3png circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supp pilm8a3d2 bl3ly 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 r0nte5a(5s hlhof)rbv f) 2 +lseries 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 the volt ff5t+b( ho 5ehl lvnsrr))a20age 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 a bac4;0eu- f:inpnb7 v4)r2oaau .zdvzittery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c7-0an. i)2zz: fo4n pb4iuu varevd; 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*g/yoybv94)eyb 7 mok volts. What is the maximum value of the current undy9y)eo b/7k* mgob vy4er 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 7b8q h)r su3 mw42i,7yqqp9fgl b kx7i60 watt lightbulb designed to operate at 120 v24qx7 ,h8ki pisw3q)gq7 ul bf9bry m7olts?

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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 flo2caz/i46 m hamlq2:bjtn84orws through a 4 ohm resistor that is dissipating 36 watt 2mnq 64 m/c28irhal4ta: zbjos 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 clothes is marked "m1ho j t5z0i5u120 volt, 600 watt.” In normal use, the cu tm1iz550ohjurrent 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 res ctn2bvn0ml3uvw4g+ 5istances could NOT be produced by a circuit containing only three identical 62nvn+t4 ul3vbgc0 m5w Ω 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 Ω resistors /e c5wxs:q)tc. Which of the following equivalent resistances Cx/s:ccwqt ) 5eANNOT 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 cvn3grfke .2v+wu7c 6 os- z.57ui whymonnected together in different configurations. If all three resistors are used in a cy .. vc6mewiz32f7 wr7s5no u-gk+uhvircuit, 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 v aaqy:) b)/,uu :vpmgbattery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit :), y u:uamgv)/vqbpaif 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, having5rc0 n9pyt2 wu resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the folltu c25npy0 r9wowing 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 design2j01x1xnesgwr3rb03jjxhg 93j r )uled such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it 0j9x3b x)2l1j1 erxnjjwgu3 03rhs g rwould 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 dissipating 36 wff;zb/vd bvp5*1y xb rr/;r.gattspb/gvfdy*;v.fr/ brr;1z b 5x of 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 current when conne d37()1pkmd l 3fnxv ktv4vgh8cted to 120 volts. If t13gvt)8h(kkfvl3dp4 x7 v m ndhe 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 much*g ,9skpnp7a;wpae y7 would it cost to keep a 100W lightbulb lit continuously for 1 yen w ppp;k* a77,9asygear 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 rzhmi*t-,s2 j um :/kqiesults in a power of 24.0 W associated with the bulb. Which one of the followh qj-iz i,/2*: summkting 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 bqj(8s 2fh:lkw x,rn lk77q+fowns a computer 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 comput qsl8r:hlk,k 2j w7xn( qff+b7ers 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 circui t+1+9 de 1 z+/o84lo kmigxtwtrxfmr(t as sz fmi(1gtw8t/4txmd+xl9 o o rk+ 1+rehown 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 c:fidx* apyz3s-u )jx7hw z+-r ircuit as shz +axd3z:7ih )*j xf-wrpu-y sown 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 anuf(4g8f o-)q rhp *d/s(twca4t: qeujd three resistors are connected as shown. With the sw (8tputfs-w u cf(*:e/)4o4qajq grh ditch 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, 7zbq frd7lw08 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as show 7wrlq0zfbd 78n 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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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 resisjcpnv*c6nwu 4 e u+35ntors are connected as 6*3 pun+4n5wu cjve ncshown. With 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shoez5 y80tb q0pqw :jxob52nz 7f ,7nfguwn to the right, what is the equivalent resistance? 05qxzfz2qu,nb e wpojfb0 :y8t7 5 7gn Assume 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 with dr9 5c2 yp1or3yl)d pdresistancesr pdc3 ydl 95y12ropd) $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iuk1a n a8f qo)x.y+. nwnw3cr7n a combination series and parallel circuit to a voltageu83 c.7oy) wxfa1nrqann +.wk 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 belof c x:b3n aqh8(o5 eb9zk.gze-w shows five identical resistors connected in a combination series anda9ok8hfqze.gzcn eb:b 3x(- 5 parallel 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, all of the bulbs are identical. Which buqqfa9a:k6id+. lp(s. r fo:c mlb will be the brightestf+qqo(rkcp.al6fi:. a: sm9d ?


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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 switchx7 +,f0quo6im/ g kvuh and three resistors are connected as shown. With the switch open ashifm/67+ko uuv xg q,0 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 abfz q1vi,/n.r mmeter, a switch and three resistors are connected as s q,fz .1bir/vnhown. 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 scm,6 e1 m/d ql59s.jewktl. fhwitch and three resistors are connected as shown. Wi, qhfemd/.j1.65le ckslwm9tth 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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