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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 th *ylhe9gve7* he metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resiegh97y*v* e lhstor 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____ms+x3wmg/ /cr)pjux 7 _____each resistor isumc3w xrg7p/s)+/mj x 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 t6s ll9u)9vh4c; mgdkq+ua q3lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thild64qa;9m9hs +v3 cu tuqkl g)s 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 urz4um2t d +a *w3u:lq.41w rfg3kpxchousehold lights are being replaced with LEDs. LED is the acronym for which one qt.mx:g1 w pr4u*fl kwcr3zu2+dau34 of 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 resistr:8a)/k bzp5r 7ml/jpw4wo qo or 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 k)ra r/4q5pj o8wzp/:7 o wlmbthat 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 wirewx + n63-e:yhvk8b4rdlpxf c/ II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II nfhclrp v3x4k xd/6+-8ybe :w 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 s/y psxs/ba +-yame material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have ab p//y+xa ys-s 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 hk5a +qnpao -9h aa2nd(as length L and radius r. This piece of material is then drawn so that it is a cylinder with n(d-+9oa kpaq52 a hannew 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 light bu +y:/ixa:mqx8+ ppy c62 zavhdsoz,m .lb. He decides to modify the filament. How should the filament of a lightbulb be modified in ordz s+y:m2 :yizd+px 8xa.ov6a,phc /mq er 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 sameinv *86.z 4bt;ix 7kzfxqk) cu material. The length and radius of each resisti.izxqfz6k 4x*v7n8u kcbt; )or 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 connec,v6l3qs5qn rrted 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. Thisv53,rr6 qln sq set of three resistors 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 resmx.t*ia hghdtu,v,ef, ew fb+8)x/ e,istance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most vu,, fmg xt ,w+8*b,ehxei t.) df/haenearly:


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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. The three bulupd ) urded)b07(ydj(bs 1, 2, and 3 - redb))d7d(uerd j y u(0ppresented 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 the right. If the current in mxz 6lbesc*62g l f9r*9j3dpkall three resistors is equdcjbgp*zxl l 3r6*9k96 f e2smal, 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 atisf0w w2ylvs 1tf(m*+ right represents a simple electric circuit composed of 5 identical light bul fy*01 ivw2+tml (wssfbs 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 follo+,*x bkrg8tplwing statements is NOT true concerning the simple circuit shown where res, rlb+tk8*xg pistors 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 series to a battery. Buj2cvdv z a aw5h52e3/xlb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each z5d haw vx2v/ce53j2a 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 pass through tfer.432re nn8aa3 p6wzv .xwfhe identified resistor in 5 seconds once the circuit was 2wzp4wveaf f.833 rx6a.ennrclosed?


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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 fol dv79 : nom9bimlpxa0)lowing simple circuit have the same resistance, which would dissipate the greatest powblp)nxdm9o m9i0:7 a ver?


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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 t;(rl s,atkha r (wmh.*hrough the 6.0 Ω resistor is 1.0 A. What is the power supp lkt.(wr(hrm;sa ,*haly 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, anq/1 lhh u)vmk)o2tg21lgwk 4e d R3 are connected in series to a battery. Suppose R1 carries a currenlqlom4 kv1kghe 2 2)u1/gtw) ht of 2.0 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 resistors R1,pn16ojkv kjqw d)5- dz- b/hs1 R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current 6pq sdn5jzv1kd 1bhw/- k-jo )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 2 tnw31rv)uj/-bcrl7) qdcp xwatts and 120 volts. What is the maximum vn ruqlrv23dpj) 1-w)x/bt7 cc 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 to operz* g ;irj5oia2ate at 120 vo r2j5igozi*;alts?

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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 dissiqkeu f::m8;m4iuz fwi8 i- zi*pating 36 waf:iufz i:8i 4imkm qw*;8-eu ztts 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 markedgnp.uu5q g6 3o "120 volt, 600 watt.” In normal use, the currpu56ng gu.o3qent 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 resistancea9wii3bjv 1m6 s could NOT be produced by a circuit containing oiib v1a9mwj 36nly 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 followin l: oe:kl2ghdpr yr8h,2r: 3 a2/inikdg equivalent resistances CANNOT b dnp /ril 2oy3i:, 82 kr2h:ag:hkdelre 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 differe,indxn 5 +cf j/.jwl1ent configurations. If all three re,1 l xcji5j.dwne +/fnsistors 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 resistor is connected to a battery, a totmv:,8 xkdi:cfh s,j xd /zbf)3/ uhe3gal 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 resistance of the sdx: :f3v hc38fk,zi),/d /gebhmuxj 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 0vr/ha7s wht, connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corre 7/v 0whha,tsrct?

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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 oper/zwdc6v s8z xsv*m(a,ati*x a,vd/6s sz (8czmwvng 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 tha *d + jjl.z*d)g9vmlcpt is dissipating 36 watts mdjpc + z *v)g9llj.*dof 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 conn:7o*il3 rwgi.zdg qi9ected to 120 volts. If the price of elq.3i i:g7d*zowr lig9ectricity 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 183cot+g0 +yto p,zny w00W lightbulb lit continuously foptc 0+ gyn3,t oy8o+zwr 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 xe-a08lplkaoc+0d g; 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Whi8pxdl+l0 kagec -0o;a ch 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 sic;kxjndj (ouf+d v612x owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protj1(dkvcjux2d+ fo;6 n ected 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 s5gj01h;f.g qr+vlhtpn8 8kdtimple circuit as sh;58 pl+vq0tkfgjh d h 1tn8r.gown 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 coa+u qjiip17)y ano-/9 f6ek hjnnected to four resistors to form a simple circuit as showfqkoa u9aej6+1-pi/n7h )jyi n 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 battzv7y+++;c4ldq uu4 .inf uigxery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch4qc+ +ixu;zif l7 u4.yu+gdvn 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 andrl.r *.ehre+ di y,2; opn/hmm three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads hp* + dm .;mlr/,e.yei 2orrnh2.0 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 thyet;1x4eww u v0ow5*e ree resistors are connected as shown. With the switch ope1u50et;ov w 4exwewy *n 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit;jgb2/ .nj)akc-*:idij7o xrhhvo9 ultg(y, shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery hbg2ocu9ki ( ;rdjh7 xo i,.y- ) jglajt:n/*vhas no internal resistance, 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 zj: 2y2(ou;ejamae 1u to the right with resistancesam :2;u(auj yo1eejz2 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ir49y : a45qyut wb,jb )qc7jmjiu)k 9in a combination series and parallel circuit to a voltagea 9t :47 y4 cy)ujj9,ijmwrkbiu5q qb) 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 l(ic0- 1zbz i q.0 65az q.sw yzwgk0unz:t.inidentical resistors connected in a combination series and paru a(z-6tg0znibcq.. zkw1i5: in w0z lys.z0qallel 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 dirpbxu0bm(3 6 dus6m:kagram, all of the bulbs are identical. Which bulb will be the brightest? xm dmpsb kb306:6(uru


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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 switch and three resistors are conwkprhb*,c8r3)zk 8sbb h vs92 nected as shown. With the ,9s83 r )kkb2hsbwr8hvpbc *zswitch 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 ideagtd ;ah/bm.zgqtl:7i ,5 dtn+l ammeter, a switch and three resistors are connected as shown. With the switch open as s,hdd;.l5tgg/t7 :aib+qztm nhown 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 .pt(*lru gykwq m d7.1ammeter, a switch and three resistors are connected as shown. With the switch open aslt.u(*y.rd7qm1p wkg 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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