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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 shojint xuxo82 g9zd;l,. wn, an electric current exists in the metal resistor connected to the battery. Which one of the follol 9, xd.8;x nugot2zjiwing 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, e9 1 igj6lv h7i1wmifd 1yg6i,the_________each resis j1gg d1hf6imw61yv i9l7,e iitor is 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 lightbul wvq4bobh .r-)b2acq7z /g2apb causes the filament to become white hot, w4 qqa .bbh2rpa) bvg zw7co/2-hile 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. Loc-wjhry0.w9 ED is the acronym w. cyjh 9-o0wrfor 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 res6zreg epqo qw;f( vwj: *.p+b)istor has 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 cylindrica)e p;ewwog( + *f.:zjbqvqp6rl 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 twics sa4bc;cy6 vx a30bg+kx.9 yze the diameter and twice the length of I. If I has resistance R, II has res0xx3v.cybgb6 ac9zk+;ysa 4 sistance

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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 twiid m(6htar;il5 h:dq5ce the diameter and half the lenghi;lmra5dt q5i(6 d:hth 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 hg71ce7/p z t6sp )zs0n-yfow oas length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistanc)eg7f1swsoptc6zz07p -no/y e 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 u u/ jv+zd+/fh7:vpc awants to make a brighter light bulb. He decides to modify the filament. How should the filament of a +7huv fzujdv/c+:/pa 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 ard0e:*vztw7voa e(t /70dxpwee made of the same material. The length and radius of each resistor is: vd/(et7 odavp* wz0 tw:e0xe7
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 resistorc7wul8g z/z xnt 71h7ms, each of resistance 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 arran 7w/xcnz 7lt8mgz71hu gement 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 fa9x5detwa k .-/tu )ohas internal resistance 10.0 kW and the ammeter has internal d/f t) x5uw9ek.o-a atresistance 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 to the right. The three bulbs 1t25ii.we/ z1v c 5kddb, 2, and 3 - represenk /i51bwdic5d 2z.tv eted 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 cuq(5wcca(l*wub, d t*xrrent in all three resistors is equal, which of the following statements must be trueb*dx qt(w a( l*w5uc,c?


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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 electraiew,2b;h) dy ic circuit composed of 5 identical light ; dyeb ,ah)2iwbulbs 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 fohgflse 6n10c d*- .qdlllowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances.sg1c 6- *lednldq0f h?


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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 conne r vyl1uk*tj00cted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elj0yt r*v0klu 1ements 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 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 byndk l9)ej.,*ik4g didentified resistor in 5 seconds once the circuit was closejedy9k db4i . g)*lnk,d?


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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 resistors5f6nqg lvh9rqjn)kz;k u 9acmad 8162 in the following simple circuit have the same resistance, which would dissipate the gre1c2vz nj6h8kq;5nkuram9 9gf) a q6dlatest 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, tnc n2vhg 0 )mcfcccrykg3n6xk 903(u/he current through the 6.0 Ω resistor is 1.0 A. What is th vcg3ycnk nhcxm/c3f09u c)0 2gk 6n(re 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 R3 are connected in serie+a-gbti l*5wbs 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 5b-b+ a*wglit. 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, R yfbdt)gprk9uxss:n, )t+c+72 andR3 are connected in parallel to a battery. S),sbg 9fny sr: +ttdu)c+kp7xuppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 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 watts and 120 volts. What is the maximum:,8nxqq1srrzh l) sk bi+ n9*n value of the current u8nhr z *n,nx:s+kqbrsiql1 9)nder 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 sd)tmz bb s3a19 3zvvx4wz,z;rb 3 g0g60 watt lightbulb designed to operate at 120 volts?ts)g3s,z wzgd1rzvx4b3a; bv3 9b0 zm

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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 11 dssut3,exyqp.c8 q ;egkt*a 4 ohm resistor that is dissipating 36 wask cxtg8,*eq q3;1pedt.y1sutts 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 "120 volt, 600 watt.” I-o/7bby;nv-u; g f hjjn normal use, the current in i-g -vyonjj ;7bu/hfb;t 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 circuit cdi(*njq 7wbn 3ontaini37j(w b*nqind ng only three 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 Ω resistors. Which o3*mw +y+vuko y0y zh4ef the following equivalent resistances CANNOT be mey*+ ho3vkwyuy 0z+4 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 wniee 6;p93ys6zdr 63vdpmd:connected together in different configurations. If al em3rd6:zi9p3dpnw;v y6es 6dl 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 connected to a battery, a total pow low8+rz r-/ufxbwr 66er P is dissipated in the circuit. How much total power is dir6/8 o6 rwbzrwf-ux+lssipated 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 resistyzg -ws*k 4b-zag vud5 5 h*wqbkg4)5mors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is dw45a)5w yzkk b*mq -h *s4gbu5 -gzgvcorrect?

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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 t.le.,nr-e i+8kz o ednhat it has a resistance of 12Ω when operating at 120 volts. What is the minimum -n.oe e,lnd .+k eri8zamount 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 nmq13:lc4dr fx+yqdi i+:7hq is dissipating 36 wattxf:7hrqilqnm+:d + 3qc1y 4di s 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 amperesdb-1.md1lti r of current when connected to 120 volts. If the prtdb m-1dri l.1ice 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 h e/(ds6qmdp(s ow much would it cost to keep a 100W lightbulb lit continuously for 1 d (s6/(mqpsdeyear 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 lightbulbqwbs,da 8-4zz .:wjh k results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of bsw 8djz,h- kw:4 z.aqthe 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 co-v- pljpuq30 y,y-+u:job a ygmputer rated at 500 watts in a 120 V circuit. If all computers are plugged into a singlejp3uqyo-av-p +y0yl,j gu-b: 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 o( fpfuceb0e.2w9 h*bcircuit as shoeo.e0up (f9 2hbw cbf*wn 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 k( f ldkiz;*knn9z). /e 1tv0avh: qgqto form a simple circuit as shown to thegz*q0 k/ 1)z helv9dkf ta.v: n(knqi; 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 klq1v v6e9t7e and three resistors are connected as shown. With the switch open as shown in the diagram the alt qk6 v1eev79mmeter 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 and three resistors are csa3p4nzf j81connected as shown. With the switch open as shown in the diagram the amm 3c1jna8sz4f peter 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 i v2*3b9satvs qc168l)l ofj uibp;hd3deal ammeter, a switch and three resistors are connected as shown. With the swib) 2b;asdhil p3o3s69*v1l f8tvq jc utch 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 shown to the right, what is the equivalent resab/ c3*amryu 9istance? Assume that all wires are ideal, the battery has no internal resa3bc*yram 9/ uistance, 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 resistaq qy7dxf6 1q *ucl.c+8 l6oezlnce of the circuit shown to the right with resistance8cqxl*1lec l6fd6 oyquzq+. 7s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fivd vb m:it t-(1wz78i4cvfqirps.e6) ve identical resistors connected in a combination series and parallel circuit to a voltage so8 vvp-1ter (wbisvz 7): qmfticdi 4.6urce.
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 connected in a cob )fr3rq1zt sg/0ei ou*zb .1nax+ t*cmbination series ab )i1qn zx3rr.0b/ zgeat*+t*ou1fscnd 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, up:xw; o g7e 08/y. nhb6xxpgpall of the bulbs are identical. Which bulb will be wh/xp6; obne80xu7xg :g.yppthe 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 0 0-cmvaw)yedideal ammeter, a switch and three resistors are connected as shown. With the switch open avy0e- ma)d0cw s 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 ammeter, a switch and three resistors are co drixvf6+zox:t7i y7x7, ;ogxl mp9- innected as shown. With the switch open as shown in the diagramx i-p9x,o lyfrv :7z7xg7ixo6; dtm i+ 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 threer:l(by n rk*k) resistors are connected as shown. With the swily*k)rrkn: b( tch 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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