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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 existss l5b02u dzgr0 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 the electric field through the interior of tsd0bz 5l2gur 0he 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 fz(sfuz+ t 85kconnected in parallel, the_________each resistor is the same.5(ksfuzf 8 z+t

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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 light1j .s,ca:ttz qbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becauqj,: s1 c.tzatse

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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 (n ,ul5pj fn+jlights are being replaced with LEDs. LED is the acronym for which one ofj,+n (pu5fl jn 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 cross-:z) h5h4 vw.itqstdb. 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 resisti 4)bz :t qhshw.ti5vd.vity 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 I264afan+ zz vyte zjmp 16e(j.I has twice the diameter and twice the length of I. If I has resistance R, II has j46amf +a2p.z 1e jnezy( v6tzresistance

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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 5pjoa. n68qfqao 6+ ofmaterial but has twice the diameter and half the length of wire X. If wire X has a resistancenqj+o pfqaaf 6o8 .56o 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 radig o:*tzodxi.zzz0 0tsva)3l0l,a de2us r. This piece of material is then drawn so that it is a cylinder,l30:iet zld)s v2 zoxgdo0a.t0*za z 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 wants to make a brighter lighx) x;pq9zeo2 rt bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given vo)xp2e rz9q;o xltage?


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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 matek,4y ob*ww ;gbrial. The length and radius of each ro,w*wykg b ;b4esistor 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 jdahw0j9fsyws* +j( /n6yrj3 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 resistj*yf /sy3j+an 6jws hw(drj09ance 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 cirii*3 c52605 p0jf- me4kd 29jcknytvwwu trn scuit diagram has internal resistance 10.0 kW and the ammeter has internal resistanc 5ictwc2yudw 53k * rjn096v42k-sejpm0 tfn ie 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 coftt*apd- 2 z m)0x6rhenn2 q0l-da.x,bnqg4 gmpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented asxgebt)-g2t,h04 d.lmr q n0 d apaz2q6fnn*x- 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 e-5 cqlfml p+f3r28 gjylectrical circuit at the right. If the current in all three resi 28qgyrl5+ pfcl-f jm3stors 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 simple electric circuit composed of un c :btz::z:edh 0n;k;:xibs5r5zq c5 i5n:5zcbct:iz0 debxsk; :;: u:hrqn zdentical light bulbs 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 NOT true concerning the simple circbo7hv580bh o cuit shown where resistors R1, Ro0 hob hvb5c872 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 series to a battery. Bulb X iw2 r/ -1l -lcijvk*eubs 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 choilblvu*2 e-c k1 j-rw/ices 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 thrvj4 7vrpain7j9si8z j sw8.-9 xf8e rjough the identified resistor in vr wfjrzja7s9xe8 jip8j .ni9487vs-5 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 resiiyjd7 13: oqxufm*ba-t ,4hdc85fubx stors in the following simple circuit have the same resistance, which would dissipate the greatest poweu f,fydmqot-u*xhb 743x8cb5dja1: i r?


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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 circmj )jphyr)f916sj3 qiuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?39f)6jir1 my h)sjqpj


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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 grwqok2j*h7 h 8vo; ;9gary u+R3 are connected in series to a battery. Suppose R1 carries a current of wkrhv7gr*o 2a;9 ;oghq+ju8y2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. 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 rh,0h,u7azr en esistors R1, R2 andR3 are connected in parallel to a batteruah, h0r,nze 7y. 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 and 120 volts. What is the manj 8b-; -te a-ki 8uc*ahatr+q5s* vuqximum v; tuatah5 su *qa+j-br *iqve8nk--c8 alue of the current 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 tzt ,bn9 ::o-: vuumc-cjv7szuo operate at 120 volts7cu u 9c z:svmt-:u,- j:ovbnz?

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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 throhpnezb8 )3 ueou7 .os-ugh a 4 ohm resistor that is dissipating 36 watts of p7.oe8ho u) nespbu3 z-ower?

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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)3+q g- z8iw yuv7kq2/ hxbrqe.” In normal use2i+w/ -8 x3be7 uqq)hgky rvzq, 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 could41jdawkrs2 c( NOT be produced by a circuit containing onl(d21ar sc 4jwky 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 o+ogwfx jqj+ 5c8 zs96esf+f, gf the following equivalent resi,egzfsq+jo 8 +5x6gffj9s +w cstances 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 bj-tzv;krfz*wqob 97l9b 5 : 38dw eiuje connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can 5bvq;rjdw- j:7flizke9to3w9z* 8b u 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 rt)8tw gkot r*+9;,a p 1s3xo;vhaed fzesistor is connected 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 ;8 h ra*+tt9w),opxev 3zd kg fos;a1tare 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 resi :x9o3x+empyqd3 4mrcstance R1 and R2, are connected in parallel, the equivalent resistance of the combination i+md :exocmq34 rp9xy3s 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 such that it has a resistance oyfq ytued er11 px,+*(f 12Ω when operatingye u1 tfd*+prqe x1(y, at 120 volts. What 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 4 ohm resistor that is dissipating 36 wu 7 +6iep4dwvx zy ,smjiv g/w-)4to:ratts xu 4w+ gr vejv/:6ds-7, iy) wom4ipztof 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 connected to 120 volt7x 6s;eijoonw a*8f u.s. aiwxosu8;ojn.7 6*ef 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 ho8g3s(2y.v o* l bf1gvlqy qc//mdg(upw much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rv luy/v( ld bp*2m3(foyqs8 g qg1g/.cate 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 thr3je.mx -+khrjv jo5onq4w-:s m2mj(gough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choh:3m -54-r2jexk (j+no.mg mvsjqj woices 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 owns a computer rated w wer+d vmq l(9 ii(.jydd:rb0 *u;bwo q(7g/vat 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 operating at the samidymig e.ob90u qvwrb+(qwd:( wrd( j;/7* vletime?

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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 resisoxmz-1 kf;bs15ai j*u tors to form a simple circuit as shown1bjk-1 ozm;u5afs* ix 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 circu0l:h)k z:sfvqh .7ajo it as shown to :q.0:hz7flvk j ho )asthe 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, u 6-+ zkn9v 1kkzn(dpja switch and three resistors are connected as shouv+ (9pzz6 dk1k-nnj kwn. With 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 ideal ammeter, a switch and three resisto s v,pk n uopnp8z7s/o-e;0(ngrs are connected as shown. With the switch open as shown in t uv e/nk;-0 sp gpnpon(8szo,7he 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 idemu0 i6 q,l6k j(mctqu4vt7c ,qal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. 6tj,046 q m7uqcqctkmli(vu ,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 r)2 xdp4y.5zch.k l b*wacyb+shc;gr8 esistance? Assume that all wires are ideal, the battery has no internal resisl x.8 b+.5cbrgwydhyhcc*zap ;s)2 4ktance, 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 r w041dgf 3ts*x(vtt deesistange(d0swttvd x3 *tf4 1ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowsa2z y0g p*k o4u(m)ew shows five identical resistors connected in a combination serisy2ge(pua *0z 4ow)k mes 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 showsi* d4 3crjl4vx*lr diuvwvmx 4-*srpk7 ,55 pn five identical resistors connected in a combination series and parallel circuit to a vox* *nwv7 54 d-4m,xr4i3jl5p l vrvkc*iupsrdltage 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 a d8l,2,7m xf0uyzyrc cre identical. Which bulb wil8fx2rcy,l y0dzu7mc ,l be the 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, a w z*o l 3:ywj)f*ic*zcswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampl**fw)j:o yzwciz 3*ceres.
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 switnnn8j)p(+ye och and three resistors are connectenn)y( no+e p8jd as shown. 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 ammet- l,pyw6(jsi;bs ig5fer, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter lsp,bii s- g(j;6 fw5yreads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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