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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 curren:hwx7 +u emxog+7gs-w t exists in the metal resistor connected to the b xsw7go m+gh+w ux-7e:attery. 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 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 a*+tj;m.+ zghjxyz+l p7us m7 (umbgd .re connected in parallel, the_________each resistor is the same 7gth+mm.z+*(m u; yl+ugj7x.s b pdzj.

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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 e03 v7wbju2gt the filament to become white hot, while the larger wires connected to the lightbulb be 2wg7j03tuvremain 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 LEw-):p mjpp a,xba )5krDs. LED is the acronym for which one of the followib pa 5):-,)jpwkamp rxng 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 Lg2puw c j k (saixsrr8;(v2(3o and cross-sectional area A. It is to be placeisv(p k28(rwx jaucg;2 s(or3d 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 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 v1 swo(sa(8j/ t cl+nhof the same material. Wire II has twice the diameter and twice the length of+1tna( ls/c s w(8ojhv I. If I has resistance 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 diameter and half ql4+6 s)lvoz.gk b1 *ttuxj5ythe length of wire X. k.z5xl*b t+ug1qo lt j4ys) 6vIf 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 has length L and radius r.jm9 x6y:o5v(jykfl 7v This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to th7kf l6yj 9j5(v m:voyxe 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 light bulb. He dech l4vt;7e; ictides to modify the filament. How should the filament of a lightbulb be modified in orderti t;7clehv4 ; 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 r4g2 cf 5gl9ztew5 ug:vesistors are made of the same material. The length and radius of eaczu5 4fgegl9w 2gct5:vh resistor 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 a battery in tv:8y2qy.z rs9mb 9;mnbnb1 qj he 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 foujbb qy: v1s;.ymbnnmz 29 8rq9r 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 internadd: i0z,a 9zegq5gy5a l resistance 10.0 kW and the ammeter has internal resistancezd0q5ai9 dg5 e y,gz:a 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. Thp9p8f yr 2 l0-nzmdovk7 +0nri2b *llue three bulbs 1, 2, and 3 - represented as resistors in the diagram *2knlburr f0vo9z 8-ldln7iympp+2 0
- 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 electtr+ws5 5 rhg:wjyn0 j8egy2 c7rical circuit at the right. If the current in all three resistors is equal, whwn:cw jg0 y+ 587h5s2ygejrrtich 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 crs*7aveqq.k r1j 8d:x ircuit composed of 5 identical light bulbs and 7ev :dq*rj8 a1xkqsr. 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 si9nozfnm:;ab25;:tibp-g su ;u m. 3:awxklovmple circuit shown where res3bn:go -k:a. u l:n ;tv9iaxu5pzb;mmw 2sof; istors 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 sh ye*uu4trfp8*k :l mw0/ o(vconnected 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 cholu0f/s wp4m hko*vr8uy:(e * tices 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 throums q(gt5*w:* wwydn) ggh the identified resistor in 5 seconds once the circuit was cw)q(y g*g5n*wt wsd :mlosed?


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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 simple circuit have mwa8:ylb :2qvthe same resistance, which would dissipate the greya2 8bl:vmq :watest 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 currend-l4src2ocm)d:hw7d t through the 6.0 Ω resistor is 1.0 A. What is the powersch)d c2ddw7: m-lro4 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 R0 y- ll u(yz(k(l9fsfs3 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. Whatk(s l0lu f-fy(z(9sly 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, R2 andR3 are connected lgrobr:oz-4iyf2 lcw2 ::e y :*yhs.sin parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentszysro42:*iy:.c felyb:w h r go -l2: 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. h3vlvc ;7:gje4 vc2vipk0nv)What is the maximum value)vcl 3jvckh0p2; vv4 e:7i gvn 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 designedgr*zp,f g6tbf hgy3) 0 to operate at 120 volt rthyg*63b),fz 0fp ggs?

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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 df/rq+9g p fbx7uy4js1a w-l0r issipating 36 watts of power? ra704sywf9 1pf+-l/jbgxqru

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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 markeesxeim:2--q2syi s*t d "120 volt, 600 watt.” In normal us-emq y s2xt-si*:e2sie, 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 cirr8n6,iyu n pngjw0nu) )59zpd cuit containing only three identii,u )drp n68ngw9 )0npju5znycal 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 follodbs-.c q 6xr92i:uy.x q1jxs3t 6vs aqwing equivalent resistancb1: 2 c 6q.x qqstr3x69xu-is.ydj svaes 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 ;w11 oud)6lilim fcb)can be connected together in different configurations. If all threec6ul)l m11;o di)bfiw 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 y856r+a bb2znp1;csxom ypr.resistor 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 are connected in series using the same battery? s+2o 8m5 zxn yrab61 p.pbrc;yAssume 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 resof1;o6.n 6sba xz/owyistance R1 and R2, are connected in parallel, the equivalent resistance of the c.61z ;b/wsxon o6fo ayombination 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 designed such that it has a resistance of 12Ω when operatix +86nm vozq-nbv) xz*y0bfrv8d;q)r ng at 12) r0v -f); vdrzn *mv xyxnqbz88o6q+b0 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+ j x-iu8mkwvqa:b.1 ls(wk2(x.suyt that is dissipating 36 watts of powe. u+yk 2u-js:w bxw.1lvsx (t(ikqma8r?

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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 13ss zl:e+w -ag oo6t6h9 amperes of current when connected to 120 volts. If the :9t 66glw-+oo asezhsprice 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 w3cy(ttnh ,yyniov +d0/b: n :lould it cost to keep a 100W lightbulb lit continuously for t,:otl(iy 3+hc:nvy/y0b dnn1 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 prz-z +hro..lthrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightb.ro z +l.h-przulb?

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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 ofc(y,y qlwy*:l six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single*lyclyw(q : ,y 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 simpl5d(9yyun204( : td knxej diyue circuit as shown 49udjndey:y( uy0tik5 d(2 xnto 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 circuito.yz5eng4)+ qt ..kzo ofsix: as shoi5ne )qk4t.fs+zy .:z.oog x own 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 switch and three resistors are , (r bolsmym5wg2r q128axw)vconn g)q2yaso5m(l1vx rw ,bw8 r2mected as shown. 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 swm2wl2oq z2v (ditch and three resistors are connected as shown. m (ld2w2 ozq2vWith 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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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 and t23czv3 ttz:2+f d7 g;phcfterhree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 7htdctftr;:2f3zzv3 pg c+e22.0 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 resistanej9rs d5lvn 8j ww..+4qwc( rda317 xve0piuz ce? Assume that all wires are ideal, the battery has no internal resi3ad.1 jwr (8 9dv .ezc nl70wv i+wq54xprusejstance, 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 ofh 2k s3tnrms.-5b4g a rutns+3 the circuit shown to the right with resistanc- mr+ 5gs2b3ntkt4hsau.r3nses $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatzo:j:vx sr:6lo uz.j q;/u7n bion series andu;j: zsj zo .nu:ov bx6q7:r/l 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 resistorsy(p5m4 :hli t6b5zp uh connected in a combination series and parallel circuit to a voltage source. h:m bihu 4lpty5(pz56
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, bc72 5g:hwbn4sz dhpqvv 7g r65 76tudall of the bulbs are identical. Which bulb will be thb 5vztr gn76w4qbh 5p7g cdv dh26u:s7e 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 batterytpr2n 286 zqhbq9:bb mbbmm07 , an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in b9m6 bbbt2mzrqn72bmpq0: h8the 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 y*hap9maj- bbfy6g4+ connected as shown. With the switch open as shown in the diaym 6j9bfaby-*+p g4a hgram 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*a pe/ r)rig g 3o2p:y/ehft, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ama e:*/ rt fe2ig3 opg/p/hrya)meter 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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