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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 metadc 2bc45;h/ q)rhj-wc4soq qx l resistor connected to the battery. Which one of the following choices best describesc4sqq;5/xcd ocrq bj2 )4-hwh 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_v xhje,p02o7n________each resistor is0pjxeh2, 7ovn 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 ligzib z(xh4l 2.vhtbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaus4 x.liv2z bhz(e

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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 replaced7m0z7t 2n0gt(y:uk8y nus c jk with LEDs. LED is the acronym for which one of the following:kstk72jnz7 ng(y 0 uy80mu ct 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 resistoro4 -gv5iu+ gyu wp,bjnx8zn 8jwq6xq 0ij -1m. 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 resistivw+ nq81jjyzp-8gwjm xx0 5,b.qiu6 g nu-4oivity 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 mp psh0q*-8dhmade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rdp hq0- h8*psmesistance

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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 tg lmgt6 36wgza :9. gu1cg(uf:p/kg rrwice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re:w g.fa rpgm u :9gcl(rg61k3z6gg/utsistance 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 resis-emeu- a5 p.7jmff1wutor has length L and radius r. This piece of material is thmm 5eu.w 7au--epj1 ffen drawn 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 Edison wanti+ qw2*u8jpan-u wz 1ds to make a brighter light bulb. He decides to2aqwp wu*n-z+ 8du i1j modify 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 same matec knua-:+aa xt15ltd2w8l0 carial. The length and radius of each resistor x28 a:c l0-5+kn1datluaawtc 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 3ymzldc) (:vlof 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 connl3(:zm )dylc vected 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 cerf07 (j2dz0iu5 wilaj8* z sinternal resistance 10.0 kW and the 250djzwe(8l j* siiuzc0ra7f ammeter has internal resistance 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 th po/zi6.xl7m) ij0 hpje right. The three bulbs 1, 2, and 3 - represented as resiz/o 0mjx .l76ijh ppi)stors 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 allx-s gynw05wj2j9f5pe tcr;( c threeen5p5j0s;g2 yc r-txfwc9j w( resistors 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 represents a simpb*(6jqtu, gt3c wv1 mjle electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) 6bg,3 q ujjm1ttv w(*c
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 true concerning the simple ci+ h13ycp0qnk vrcuit shown where resistors R1, R2 and R3 are have equal cq1n3+kyv0 hp 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 w- y+cax4hz3ay ) yn-eseries to a battery. Bulb X is brighter thaa y)c +xheyy--az4w3nn 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 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 pas)*xykb apwtx zamup;v. (se;dm-+ t (0s through the identified resistor in 5 *0vm)dt-a+wxp ab;m ;t xepzky (.su(seconds once the 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 resistors in the followin+8jeuszjpz ,:g simple circuit have the same resistance, which would dissippj e:jz,uzs+8ate 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 c1m(bfx;yme/40ji tv vircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is x1y 4mj(tvfvi; em0/bthe 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, R n)jgv8adiz a20v12y t2, 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 acrossa)i8 ngv1dz2 0 vyjat2 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 connecb ytr nke9z23,ted in parallel to a batterzey9b 3,nr2t ky. Suppose 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 a(mv)) zlr(1eiy t ya5dnd 120 volts. What is the maximum value of the current under these cond() m y15tirayedv(l)z itions?

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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 w ) iy(fm,k arhfs2lx30f10t1i 37buaddj lic0att lightbulb designed to operate at 120 volts?lx i3dufiyh ab)m21,l 07 sft 1f0cki j30(rda

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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 qpc:sr -qv)dd2.1g nrehu(.b ohm resistor that is dissipating 36 wa2qdrp -eqsvb)rdn.gh: 1.(c utts 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.j5ez e6/ batx used to press clothes is marked "120 volt, 600 watt.” In normal use, the current izt.a6e e/ jx5bn 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 coul cl,329ojjm.kpbm-h md NOT be produced by a circuit containing only three identical 6Ω resistorm hb3 ,kmm lj-o2j9.pcs?

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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 z98wh1his 1l z resistors. Which of the following equivalent resistances CANNOT be prwsz18 h1iz9hloduced 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 resisto(*n: qvgiq6(mf ble zz4ry /n/rs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different vag(zq/ fmb:nrqv6 ( eln4 */iyzlues 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 connect 7mylku3g/* 6tn6sf mged to a battery, 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? Assume the internal r3*mu/kgfs66 ylgm7 tnesistance 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 an36gfe 0zqok:ao z n + r*2qnv4l79bp:j8ylpfq d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ofqbk*83neoo2zy6 fl+nqv 7:rjlp 0p9g a :qz4 f 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 such that it has a resistance of 12Ω when/:vm;e mnxul / operating at 120 volts. Whm ve/mx/n lu;:at is the minimum amount 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 hii7hog)okv (6ds;x pxp.5x 1n3p- o*hl)rwo4 ohm resistor that is dissipating 36 watts of lipionr*v.6hgoxx(p7h) p5)3s- h d1 ; xkowopower?

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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 d8e*v*:o xuci vraws 13 amperes of current when connected to 120 volts. If the price of v*cxui :eo8*velectricity 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 contin1o,uw ausc.(xuously for 1 year at a ratea x,.uw( c1sou 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 a9vj8;clc :dgqv6r3 xw power of 24.0 W associated:r9cc8;v 3 dl6 vxqjwg 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 familk;bm66hz/4sif 1 qspn y of six 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 max4/f zs6bns6;m1qpkhi imum 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 a.gd6eoxoi.h -*kl,n to form a simple circuit as shown to the righ- a6,*eld okixn.hg.o t.
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 t 3agimt/*hc . )7cq4ha*hctxeo four resistors to form a simple circuit as shown to the rightta*7q3 xchc*eghcha) / 4i.mt.
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, da3 ;sw9(ofmhx0 1tvjan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sh ;3vaj9oht sf0m xdw(1own 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 ideasmf ++ pad.fk4y5v (u, wd+hyl.pd-pu l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes-w .f+5sd4y+h.pk v+p ,a fpd(umdu ly.
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 swjkv vt.jx:e2;m t3 gk:itch and three resistors are connected as shown. With the switch open as shown in the diag3t2mkv:k;:.jxve t jg ram 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, u18yem kh1f*oxkc9) d a4uv7nwhat is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identicalk9 v1d uckm17nyfaxh)eo* 8u4 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 circuitfbsqpji9 nu n ;f.f*,0ghd0a. shown to the right with resistances 0;ff.nnsqb .h du0gif *9p ,ja$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowk2w l:fec. 6ji shows five identical resistors connected in a combinationekcj26wf. l i: series and parallel circuit to 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 resist7 hbppd,bv6g7kj,z, mors connected in a combination seripzmgbv7db h,p6 j ,k7,es and 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 p1ekdg ).0y45l kl0naq z pdq7kze2b:of the bulbs are identical. Which bulb will be the brightgny2b)q dpklp4 1ekleq.0zk7z 05da: est?


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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, (jfnirrh)(/ps ;3u r ia switch and three resistors are connected as shown. With the switch open as shown in the diagshi)f(pr n (;/ ru3jirram 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, atnpdu,( xvh; :n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0v nptx;h (,d:u 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 s xv t9a60r9rahpm zq0;witch and three resistors are connected as shown. With the switch open as shown in the di0 t9;azh 6pvr qaxr0m9agram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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