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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 electricpznd; /:4foig:vrgb keu+9v 5*gh.qw current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through/ph i:w.*v9fubgnv5kzor 4g + :ed ;gq 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_______n)o xtlub8o9 m/bp -)d__each resistor is the same.xub)ob-8 d )np m9ol/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 lightbulb causes th* fd6qhmj5 d,zo8omw/5fyix9 e filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens be wx5mzyj di,*fm9f6o qo8/d h5cause

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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. LED moc7 pt 00v gk3u)/hwkis the acronym for which one of the following choicek)07o wv 3cmht/p0ugks?

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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 resistorn dxua :t1( 57w,xuulyrg zu6( 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 L5uuxgdlxntrz 7 u6au,y (1(w: . What 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 ab .p 4s5l*a(ccsjrtk7 re made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistapss r bc(k.75 jtl4*cance R, II 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 material but has twice the diam)x4 ,ku dtez:h/9ppku eter and half the length of wire X. If wire9)kx :zh k /t4upe,pdu 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 rmx*r)whlwd*-z 2i ;g*2x rsby esistor has 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 resistance of this material*;dysixgwmb2 -*x h*rr 2zwl) 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 light bulb. He iaq hm7otb,)vahbmt1.1*u*m 15 rah i decides to modify the filament. How should the filament of a lightbulb be modified in order to make h mh utr*tib o,i*am)1a1ahv.7bq m15the 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 resist5 g9hi/:hcbn, 8xcn uw0rorw* ors are made of the same material. The length and radius of each resi,08w/nocixc:59 hu rg *rnbwh stor 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 + b(+:mqov s)nxxb6)s:k yghc 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 arrangement of four resistors?h+s+c( b:xgsq)v)onxb y:m k6

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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 diagramm3 ed2w:- w5/w0jfts f8mheyu has internal resistance 10.0 kW and the ammeter has internal resis 2 8 ehuw3mfed-:5ww0sf/t jmytance 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 compou4obwd pj jfd+;pzq -27nd circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diag4zqd d wp-joj +pf7;b2ram
- 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 circui;.e bc242aaslf,b aa vt at the right. If the current in all three resistors is equal, which of the following statements must be trueavf2,ab.be; 4 sl ac2a?


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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 represent.ognm2u..e zm yy2 5ptued5/is a simple electric circuit composed of 5 identical light bulbs2mie pdoe .y25t/znyuu.m5 .g 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 conu8 j4rsbm ee08cerning the simple circuit shown where resistors R1, 48jmur0e b8seR2 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 arej y+)s(0zhqke-ah m 3s connected in series 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 choi( +y zqsh-0ea 3hs)kmjces 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 ident+3raco zf 89u/smtb: lified resistor in 5 seconds once the cir ab9tlrsf + u3z:m/o8ccuit 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 simpl as5/y jbnlx1 v0*dmf)hk10fn e circuit have the same resistance, which would dissipate the greatey5ld1b f)00sn1*m/ nfkajx hvst 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, the current through the 6.0 Ω resislf+0xopq8y hl 1*,eozok3z/stor is 1.0 A. What is the01y8el foo*p qxko+z l3s ,h/z 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 1y 0mstwjb8w pxhp-2 -series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistan2-xjt bs1-0m pywph8 wce 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 refwl2d0ksr+,x+a(ho2t*vfr qq7w s a * sistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and Rqfrds+7+0 2xt h qsaa**2 rwf(lwv,ko3 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 maximu )p-)0wq 2w nrvzn(apb, hyyt.m value of the current under these conditi(yp)z r w)b0 qh2pnt ,vna.w-yons?

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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 p+cc (hw q2t5moperate at 120 voltq 5pmwch +ct(2s?

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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 i,tu4eye.*1 yr+8ded4 o j+ewaj4kj ik;s7oidissipating 36 watts of powi8dae,dju+ 4+t1je*ii. eew4rk4k jy;osy o 7er?

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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 usewzehc 3dba ,:te m-rn6ev*d. lj/zm (:d to press clothes is marked "120 volt, 600 watt.” In normal ze6 (-:m3eezmrab/vcnd* , d.lthj:wuse, 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 could NOT be produced by a ciggo s(o tpbn9;q .;t2urcuit containing only three identio;tt g9;nspo uq(b.2 gcal 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 following equivf+k okvkbb 5/shv:u3;sds 7 8dalent resistances CAd5h os vs;+s8kbfdbu7 k3/kv :NNOT 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 connected together in d 3*0zern:f hamifferent configurations. If all three resistors are used in a circuit, how many different values of total3 e 0n:*zrfmah 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 d /g x ai10f.f(:wimrqay1po 3wo /le,zissipated in the circuit. How much totp/w(r 0ixwmea.gi ,fyz3 fa 11q:ool/al power is dissipated 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 resistors, haviw4g;7yq c j m;bm voif0x08dc-ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the m;fcyv;g 8-7 40j 0xmoiwdqcb 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 iysez* : u+:dlv,sm,sgse*gvy2fv + o-t has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wo,+d*es * fvz2::gsylsom+v-ev yu,sg uld 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 dir :,)w kdb57/w7itd coki(ictssipating 36 watt5ki:k cb/io w ,rd7)7 w(cdtits 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 hew*cge oj90p(later draws 13 amperes of current when connected to 120 volts. If the price of electricit *o9ew(0j clpgy 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 lca/a7r z a23z/xeim.g it continuously for 1 year a/zmge.xaac 32/z ri7at 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 results in a bqxmbx 4;t6;c oz32m4 cmcoom7hn 80 dpower of 24.0 W associated with the bulb. Which one of z6tb48;cd cn 0h7;3mcxmmm4 bxooqo2the 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 six owns a computer rated at 500 watts in a s -7rserm)j; q120 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-srrs ;7eq)jm 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 i,)w +tp e1fpwss connected to four resistors to form a simple circuit as st,+ fp1w) espwhown 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 resistpumea c-r(jii e96,b(ors to form a simple circuit , m u(j6ircpe(ba9-ieas shown 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-c 5bzu 6phvb-5 4gkoy switch and three resistors are connected as shown. With the switch open as 54by -5-vpbzkhu gco6shown 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 th 8jt.( fl- xyk f+vzee5(nbs-jree resistors are connected as shown. With the switch op- .+l exvsbky-j8zj 5n((ef ften 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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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 19enje1i d g0 d-fc)4 k0oomvhand three resistors are connected as shown. With the switch open as shown in the diagram m4n gd)0o cd1kiee-f9 v0o j1hthe 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 ( g2vyw doft-nxd689r right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. wtd2rxovy-89g6(df n


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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 r 6tkeo3 1pe2yright with resista631teyrekp o 2nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re 2 *pehr+qlq6tsistors connected in a combination seriqtpq 2r*l+6hees 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 resistors connected in 6/y ;nfj ;gz 4rexh0v7wqdl1sa combination series and parar6nv y g;f jhlex4szq/w7d1;0llel 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 ther u:qmz0wdb8;)enr5 l bulbs are identical. Which bulb will belb:r08mqeznu5d; w )r 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 frs i 6q4gcj9xk7 ;xp0switch and three resistors are connected as shown. With the xrkf64pgqjx ics0 ;97 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an impp w9ddk4) );r1 :cazrl 6qfedeal ammeter, a switch and three resistors are connected as sdqparp4e1 ;m fw6k9cl:r)z d )hown. 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 switch and three resisto tui.e;w s7l3u9m74 mq 2ajlyg*7 ygnors are connected as show;l9ty4 wqel*mmg2sj yu7iuan7 g. 37on. 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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    总分:50分 及格:30分 时间:不限时
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