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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 current exists in the metal r. k2etvaj;+bs jbe x:+esistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the res; aj:+ekb +v.xtbejs2istor 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 resiuco1m: 0mhw7gstors are connected in parallel, the_________each resistor is the samechugm71 0:mwo.

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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 lightui/yza*hab, 2fqb8l y6z 715+ v tiqm0fn,kkpbulb causes the filament to become white hot, while the larger wires connected to the lightbulay zkqzukifpnli 8, b06f ,t2h1m7+ b/*qavy 5b 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 repli+)k .*0-vfx 8whmi rjl8gnrtaced with LEDs. LED is the acronym for which one of 0.j*i frn)ghixk8rtmvlw - 8+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 has length L and cr-8-pfl 2l3-kwirkhp.f;g va boss-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. W l pfwk3-h-; 2b-ipa.krlv g8fhat 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. Wire II has twice thns9b. -d5cwdxo8gl*we diameter and twice the length of I. If I has resistance R, II 5g xn s9ow.8db*lwdc-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 motq4:x ovn2ey k9y 10jc wws06aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would t1 wvsy0xo y9o e4k2cq6 n:j0whave 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 uq+pgww1v )8u radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this 8 )gpvuw+1q wuprocess?

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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 want 6a8gnxft)w ,5ubq*yos to make a brighter light bulb. He decides to modify the filament. How should thebq*fxt) o6ya5gnu,w 8 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 samwsxi*. jnpagg91x/l gs/209h wgvo4ze material. The length and radius of each resistor is:g /pigx0z9lsx g/nwo sh* w.j4ga219v
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, - iu)-d ds)p1ms y 3q5ihs1ntgare 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 resimusgi)q ds1)i ht-sn 3- 15dypstors 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 resistan,j 8mt ygn ::j:rmvl+lce 10.0 kW and the ammeter has internal resrng + lvy,:jmj:m8t:listance 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. wfdrda x0 a n91,r*g(qa hj:w/yz y x7n:/vg)wThe three bulbs 1, 2, an w )fy*axjrv0// g,r qz::w7( d91axhwngaydnd 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 at th5vudrss,k,ji :ut *0we right. If the current in all three resis wt:,vs sj 5udk,*i0urtors is equal, which 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:m2, hc3 slbdam*nio) represents a simple electric circuit composed of 5 identical light bulbs and 2 flahoclmi3)s,*nd2 m ba:shlight 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 folsh tq eavj)5*+ mnim:mjqy ms(;p 2,cr(pa18nlowing statements is NOT true concerning the simple circuit shown where5h ,*(qjmm qasm:1mv tinry8p2+) ; (aespjnc 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 seriej59hf8 qi+*cvill/) grp8 y j 6pu45jp.ugrars 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 wh) u q6gcl /*u8 rapjrf4jy hrp9g5i5 8j+lvpi.at 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 i x) e+ 4vh*f6)rwwe6.srafvoi dentified resistor in 5 seconds once the circuit6x+rfh4ae6v f*o)s w.e)rwvi 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 the following simpfc8jky k+) qar;tly+k78m h0 cle circuit have the same resistance, whiclykkc+7tmq)ayf; c0 8j8+rhkh 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 circuit diagram, th5239lzu ebzrp9sl 2 cde current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage2 cl9drbl25e pz3su9z 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 yhb4x*y 0 ygjk2un. m;R1, R2, and R3 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 power. What is the voltage achy gy*j40.k2 n xb;uymross 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 atj* m:i l+/y9piz.irdxol(2.k xp a5parallel to a battery. Supal* ty(l.xikodz5p m2/ j9p+xria: i.pose 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 2a ykjfb/mj hwwc77.+value of the cur.haf +/jc bk7j7myw2wrent 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 operz1 m1m/h :/rws sp+uxpate at 120 volt/xsm+ur/ :m zp1s p1whs?

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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 dissipatingnsru9wct: -h;pyh ;3 z 36 wath;sr9uc y-pth w:z3n ;ts 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 ezh;jvn5exl)b) e38 ihn 10i dmarked "120 volt, 600 watt.” In normal use, the current ji))eh5d e 3zn x;inlb8evh01in 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 czm(72j ( dyioxv8xi 7qould NOT be produced by a circuit contai v(x8d2(qximyj77zio ning 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 of the follow)(3lx co:8fp(gug wr ging equivalent resistances CA)g3 prluw(:8go( xfc gNNOT 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 connecwrdariqi7 4+q mgx: m30a:0 ktxzq g0+ted together in different configurations. If all three resistors are used in a circuit, how many diffeq7iz400m : i x++gxm wd0agtqkrqar:3rent 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 power P is dissos2.zibr/qs oje 2:k o/py/k:ipated in the circuit. How much total power is dissipated in a circuit if n identical resistors ar y.e:osrj2/kkposzb o q/i/2:e 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 p k/ /mov2iqdg,x bot.8arallel, the equiva v/8digtboq2 .x,kom /lent 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 ddq5s. bid *; hd(ew ez-2kkyldqb4,q+esigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of eh dq (biq+klz-w2yd,*qs;4.5 dbk e dwater 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 resi vk/6; /vip fk7bsqetd/*d vi)stor that is dissipating 36 watts vtd/eb6 qi* 7/fv)kdvpk s/i;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 13gt0+gixh h y:gc9mw+9hxlh . : amperes of current when connected to 120 voltsggi:mt c +hh9 0xhx.h+ywlg9 :. If the 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 would it cost to keep a 100W lightbulb lpi b/xhvw/u x.rn+0w*it continuously for 0pn/xr wbvwi x*./uh+ 1 year 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 throa* p1;no*k f anit6,tdugh a lightbulb results in a power of 24.0 W knp o**6atai;f,dn t1 associated 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 si9v j 9aafig,0gn8yj2ix owns 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 computers can be operatiag infjv 90,a89j2gying 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 siorvj -p0 z4ui1fv8ff) 5f4en mmple circuit as sh5-8i0fju vvempff4f) z n o41rown 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 resi 9w+i0.uuxen da +j;mrstors to form a simple circuit as shown+md9iw0ea x;u n+r ju. 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+tc p6t1,irc6xl 7x ub, an ideal ammeter, a switch and three resistors are connected as shown. 1+c6u tt,rlx bcp76ixWith 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an iq +juq:desra*kzq.a:/jj 4)ydeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th u+qjz/ qr:*d4a)eaj yqk: .jse 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 amme4ng(lsp 6f ,5g6()s- rbxeyu*wb lfl dter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am-*( ( burl5yf6sl4g b l,6)pgf wdnesxperes.
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 resistano/t 27k j0rdkfce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors hkfk t0 j/2or7dave 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 d96 ,k6ayi r89vdl petshown to the right with resisr ,ptdy6k8 iva9l6d 9etances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combiz 0ew6qb25xp unation series and parallel circuit toz xp beu0256qw 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 connectedzmh0e0 iv -l)t in a combination series and parallel circuit to a vv-t0hem0z il) oltage 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 ywbw,5pn/ ;yqjigu7 , yhg **kidentical. Which bulb will be wjug ;/bhiwqkpyy5,*y7*g , nthe 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 ideal ammeter,um;u/ifm8/ id a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. ;iimdu/muf8 /
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 ammetbd;1 q jy1 6vr;ham36 4lkagnher, a switch and three resistors are connected as shown. With the switch open as shown in the di 136 4hh 6vrjlgaad;my1nq;bkagram 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 ut8p 1z /paoykf* 05usswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp/ysutf ak1o0 pzu *p58eres.
When the switch is closed, what would be the current in the circuit?


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