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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 el9c c,j8q 4y z cbk+lup7 6nzax:sf9i8uectric current exists 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 inte+ c:uzy689 xabn,l8i47csu9 fkcp jzqrior 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_________each resyk9flkcn .zy+i6ht14istor is the sameky69 hnc+lk .4y1 ifzt.

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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 the filames7 dg --lwq0ha1o/5qom3c wy:b tla,bnt to become white hot, while the larger wires connected to the lightbulb rema/dwt7bho a 1l s5ac 0m:-b3q-lq,wog yin 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 LEDs. LEdl hwnnln3ew1)3:t 5yD is the acronym3l :e5hdntnnl 3 1wyw) for which one 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 resistor has length L and cross-sectional area Apz1 0due d59 g)wmhvr-. It is to be placed into a circuit, but i)ewp dv0d-h m19zu5g rt 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 of the same 4x2xxwpd qsil01d1-yr e.8kkmaterial. Wire II has twice the diameter and twice the length of I. Ifkw 1sdy-4x k8dr.xqpx10e2il 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 mater b 3+ivpdd+j3qial 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 a resistancdpb3i+ dq3+ vje 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 ha5 j(p js)fhdx.s length L and radius r. This piece of material is then drawn so that it is a cylinder with new .f)sxdj(5 hpjlength 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 wantbm*bht27dwl/ z powd:c.e m15s to make a brighter light bulb. He decides to modify the fi 7:eh5wmdw pb*bo/ 2mltc1.dzlament. 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 materia870zh27 mdpe k*ytnlw l. The length andp7dkw0te 8 nlhz*7y2m radius of each 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 resistab c+ulcimm(og,t3 c4:nce 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 resistc ccbt+3lu4g i,m( om:ance 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 internaj) 9cupdp1 et1l resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vo9d 1t epjcup1)ltmeter 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. The tcr:(h0t ct 7 b((kcxzshree bulbs 1, 2, and 3 0cz sc(cbr7( khx:t(t - represented 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 electrt/ d;mumh9ga l*dmt45ev9 h x2ical circuit at the right. If the current in all three resistors is equal, which of the following statements mu;t9md /*m h4tx9avh du5gm2 elst 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 rightjbwcez9 f2 x)7 represents a simple electric circuit composed of 5 identical light bulbs and 7fxe)zbw j92c2 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 concer0tjmeog z.f+b2 4mkndlk /k3yf..b;p ning the simple circuit shown where resistors R1, R2 anfmm bn ljdf0gek.z+yot4p k;3.2./k bd 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 co0x htb4rf 73y-of,1hvn 6gasynnected 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 t7nf1y4 h36hsob0a ,-rgfyvx 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 coulombsby2r +wd 44d f2qptnf/ will pass through the identified resistor in 5pwdf+ q4nd42t/2y frb 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 following xjbnn/hx 1n1/ simple circuit have the same resistan/b1x h/1njn nxce, which would dissipate 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 circuit diagram, the current through th 00ct65ijh3aks(zr 8czvi6 ouoc(j/ps*k zb6e 6.0 Ω resistor is 1.0 A. W i6 z0kr50azjv/3ssoicch6(oc 8* jt (uk6pbzhat is the 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 (fp4 ksi4tdj-uo ,(iaR3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistancet ji,44isa -pk(fduo( 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, R2 andR3 are connected in paralleb: qrt2bdb/ju7,mx o:o.hyph.: a4pfmfv 9 /d l to a battery. Suppose R1 has 2V across i xfo:doa u2h fvm9:4phmq7pj.br/ .,t/yd bb:t, 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 12;jkjyi gfi-mj u4(7 -)mk / ezrjr52if0 volts. What is the maximum value furr y4ejm-m2ji 7 /ij)k5f -(zgk;jiof 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 opem3 lm21l1qsr ufu;cv wp*j 2t/rate at 120 vo2p2s *m ;lu1tcmvq/3 urj fwl1lts?

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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 h48*mv lhlmg*u-q f(m dissipating 36 watts of fh(vm*8gmll-4 h* muqpower?

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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 clothe2 +fz0*hd b y+k(r3vzxjr;g zes is marked "120 volt, 600 watt.” In normal use, the current in ( k3; bxz0rrvyez j*+fd2+zgh 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 prod0 7;gwvdp+ygk ej 0r7:jup f,ouced by a circuit containingkjjwv:g7+oep fp d 7y0ug0,r; only 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 t xscch)rx8)m/l 4gjj 1hree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thre 18)hjmgxcsjcxr /l4 )e 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*cuzjli; 3v6vcl y l/s0i ;lj/ in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can* 0zijuyl/i3sc;jvvll l6/ ;c 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 ysk+wd+oy/ l61 al*hsto a battery, a total power P is dissipated in the circuit. How much total power is dissip+6sdy* 1 syohl/ aklw+ated 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, having :6b zgo 9 w4jgvp,g e461avgzhresistance R1 and R2, are connected in parallel, the equivalent resistance ggzh : 4e zovgg4ajw1bp6,v96of the combination 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 des 4lxnd 3g;wvfe( 1vx4eigned such that it has a resistance of 12Ω when operating at 120 volts. Whxv1 vgd(;e 4ex3wl4n fat 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 dissipat 8l43gg7nthfex 59d (l+ j vf0fiutp0ning 36 watlh+pnfe38xdigv (50jg7t94luft n f0ts 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 heater draws 13 amperes of current g sh9. 2qrcw2rzp3 iut2z 7 8uquhit,8when connected to 120 volts. If the price of electric z9 qr2tz 78up,. icr2hs wg2iqh8uu3tity 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 ffpjsc,yvcl0t- o ip wf)842 4it cost to keep a 100W lightbulb lit continuo , vwip 8s424p-offjyltcfc )0usly for 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 4.00 A y. hr e igi9r tg0bx+)o6g+yo)through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices i+y)g xyhbg )6trg9oie+r0.obest 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 aq91yz.;c l8mvniyq *e f (.tid 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 maximum number of the comput ; y m*yq.vc9 (ndz.qf8tiei1lers 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 togk*thqa deu.0on.7 x6ak;ji* form a simple circuit as shownx.jhdkk 0.g a7ut6 e ;**qnoai 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 sim*xptl) okmdvk v3c pfqk/;; 16kr8bd (ple circuit as shown t3c (bqd; drk1* /optm k8l)fxv6v;pkko 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 94b yp 1iksuf:three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re1 pf:u9ksy4ibads 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 threevn(jtugev09dw9ek 8 m.uxr7 + resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.emxr kv(+n g9wuve70tju89. d0 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 three rest2oxqex56pbebn20y5h q*powby 5k/nlr ) j ,* istors are connected as shown. With the switch open as shown innyp6qwb25 xhe*j5 p) 2btlknr0o */eyxq,o5b 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 circui-hq.7vjk w hj t;syen+k7dgbz) ,+uw +t shown to the 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.wk7.hu+ek bz +y , nd)twj7+;jv gq-sh


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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 shown5rzuag k1 k m+4ys,1wcf2cjv , to the right with resistak,zyuj452cgcfvk1r, ma sw 1+nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 id51e6f g3qj 5uzyw0+2dyxfyej entical resistors connected in a combination seriejz0qj g xyyfe56df3y1u w5e2 +s 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 cozb:9d )62 etb.dyqa1z wxjrd( nnected in a combination series and pab(t. dx 2:rzybeqd9 w1j)6az drallel 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 the bulbs are identical. Which bpysza3sya .fmwm-s8*vf. b .4 ulb will be the brightest? bms.m4y3wv.* s8f.sfzpaa -y


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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:sxg4cs-wlb km871 bnu1 h,mw ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 87b4wg1 wx:l,-m1nu bs hkmsc 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 a, sl.csxqj /w :3yc4pga tw r8jr-w2+jmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0wr,4 8yxjjwc2q3:.p+ajscgtwr- / l s 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 idealwbbjm 9(t6rw 1 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesjt6(mw1wrb 9 b.
When the switch is closed, what would be the current in the circuit?


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