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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 thcjrc -+th7i utue)nf5m: f+ l(e metal resistor connected to thejrc lu m)f-t5:+uen+hc(7tif 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 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 resis mjq*ax- 9ssx:v:ef3jwq4v q.tor is the sa:qfq:j jv3* sqw-xvm.9e4xsame.

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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 thro ec f-onehq(ox+ yr .gj+oo.4t ba+u0)ugh the thin filament wire of a lightbulb causes the filament to become white hot, whi h+ jyo)-e.qo(rox++ .bcatnuge40 fole the larger wires connected to the lightbulb remain 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. LED is the 56tdt/ tgvks4acronym for which one of thetk4/tdvg 6s5t 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 lengt c2ta:b6 ya(bph 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 L. What is the ratio of the new resistivity to the o( 26ybcb ap:atld 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 mlbe g27oqu/gm43w-ktb*zp s1 aterial. Wire II has twice the diameter and twice -bgol4p s1k/e3 t27zgb qw*muthe length of 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 hm9-qioxw627y,x ce* p,r bptjas twice the diameter and half the len6teicjb7 rqx ,o- mxpw2p,y*9gth of wire X. If 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. This+i7 z11 lsfyd zt89ntl piece of material is then drawn so that it is a cylindertz1nldz7 syl9 +8i 1tf 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 light bulb. l*utk6igs h, 3iq(,hhn cq f3-He decides to modify the filament. How should the filament of a lightbulb be modified in order to make thh6gq(i3ic-snl, f k*u th,h3q e 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 material. The.74phvyu l-cu0d 1j/rx+ wum l length and rv/l l 0+jr.puh7dwm 14yuxc-uadius 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 resistance R, are connected to a battews+ axsvtz 19 5gih+s/ry in the following way: “Two resistors are connected in series. This combination of two resisa x/iw+h+g t51 szsvs9tors 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?

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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 diagjos i4(- uuw)a vz;sas3a/28gori;icram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amm2a;u )wvij c3i8/(s zsuaaoo g4ris -;eter 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. The three bu1tuk:3zy yj l.lbs 1, 2, and 3 - represe1y:.kyu3z ljtnted 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 a6 efezbp; fb 4(e-mvt6t the right. If the current in all three resistemte6bzf ;64 fv(e-bp ors 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 compose xm-+psbq6wd v.*4uef du+adj:e 66cf 9 nwp8xd of 5 identical light bulbs and 2 flashlight cells. Which bulb (o 9e*sb vc6wdenx6p48j a.m f-w +f:up+dx6qudr 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 simpl uh/l+zp m5xt wiww( g pe8)t;9rz+,gde circuit shown where resistors R1, R2 and R3 are have (w w dg,pzpite +; g8mu9xl5t /h+r)zwequal 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. B3bkkje:) i r4c rh5va3ulb 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, whikiak)v b jh3 r5:cr4e3ch 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 the iden 7r8syp9n :vogr3jq t1tified resistor in 5 seconds once the circuit wasqn3 pso gyt71:r9rjv8 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 resistorb53fivc,y+.3 fj;z 5cfg* sy ukbtp.us in the following simple circuit have the same re5 i3k;.3suv tuy ff*jbgc.f bpy5cz +,sistance, 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 diag d (2fn;pjgnf7ram, the current through the 6.0 Ω resin(d7 j2gp;fnfstor is 1.0 A. What 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 R3 are connected in serie1m +ci8rmbhoz6t wlmo-4-7 pls to a battery. Suppose R1 carries a curzoml 1m7wi-mc o 6-4lrphtb8+rent 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 r*vv a5t *9lwo)cb hfx 7.ia.foesistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 oa59 *vf w7fx.co)lb t*iv .ah= 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 watjv (ht 6yh g(tnlm39, w;w6whtts and 120 volts. What is the maximum value of them jh;tl63(wv9n y (ht,t6ww hg 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 topijwoq; - 39rz2s q:qlh 2fxt( operate at 120 vo9:q3xz qirs (h2jqfptwl ;2o -lts?

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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 dissq 9 bne hprm1t85op/8iipating 36 watts ohob p9p88/m 5 rtein1qf 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 usexkw)xj 5-c c*nd to press clothes is marked "120 volt, 600 watt.” In normal use,n x kxwj*c-)c5 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 c3 y,jy85cjbbresistances could NOT be produced by a circuit contai8cjc y,b bjy53ning 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 three 1.0 Ω resistors. Which of tha7 2 vvmk2no9ee following equivalent resistances CANNOT be produced using v v2mao72 kne9all 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 cox16nmx rglrs,1eh)2 dc8f6 bh nnected together in different configurations. If all three resistors dl1he x6cf6rg 1, mh2 n)8rxbsare 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 total power P i lk7*i 4zsrecnht/p;; s dissipated in the circuit. How much total power is dissipated in a cin htkc /pr;le*s;47zircuit 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 resistance R1 and R2, .kq w)yjf, f8 hw1kk/iare connected in parallel, the equivalent resistance of the combination is 5Ω . Which ofqw h.kj81k/f)fiw,y k 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 operaq70awh na,oro,beo -pbvp r1 0*rwv0*ting at 120 volts. What is the minimum amount ofrbvoprv 0ha ,o0 ,np70* wq1b*e-arw o 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 fln*xixg-an 69tows through a 4 ohm resistor that is dissipating 36 watts of power?tx6g* n-ni ax9

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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 6aw: n )*er50.fi qvfc-1b jzhts6airw,v ;miected to 120 volts. If the price ofnqz j *wr5r-avim 6h;iaie1 .b6)twv ,fsc 0f: 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 would it cost to keep a 100W lightbulb li1rv60j6 s wuonk.h5 f6arx/c vt continuokxu. 66j 0ca wns/1vf6o5hv rrusly 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 through a lightbulb results in a poq:q erm dhibx-ip*+yc k+. 2.ewer of 24.0 W associated with the bulb. Which one of the following choices best represents the resist. 2d+ hei*+xkqib cpymqe-r:.ance 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 ,egp,f /00i hhha c7fywatts in a 120 V circuit. If all c hc/hh07ia, f0eg, pyfomputers 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 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 s .xuq(b8uenu d g/4z 9f m7ttz.)fxnj+imple circuit as shown to tbx tuz98z)m .u4.fut7nxn+dj/ g(ef qhe 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 si ryonw0f4qy20b ns b5+mple circuit ryn5wbq ofn4b20s+ 0yas 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 sw2vwl. zggg1svnnw+ .1 itch and three resistors are connected as shown. Wnzs+gg. nwg1 .v vl21with 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 resistors are yi kb x6nimzcs/:f-6*7s al ,xconnected as shown. With the switch open as shoz 6,7n/6x axlyik*fcs:i-s mbwn 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 three resjznhb7 bd/2qi4 n de7iki,q0t: -:tfaistors are connected as shown. With the switca2-7b47q0n:jzfdbn , iqite/ dhi:tkh 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit v,wa 1vjsv rd r+c)*hors9q*) shown to the right, what is the equivalent resistance? Assume tha 1a)rdhv o)jvs +csqv*r* w9r,t all wires are ideal, the battery has 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 resapf3d06pcpto3 u s/1 bistance of the circuit shown to the right with resistd pu6 b3tsf0p /op13acances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sh ak p s+ .uj7mh:pb:n8z.y1f7n-pcmyfows five identical resistors connected in a combination series and parallel circuit topck +8:yjh.fb71s ynz7fam-pup.:n m 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 i f(/xgpo9qht1hfj07un a combination seg/opff xq j(u 071hht9ries and parallel 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 m/ruvlhet0f:9 3 ,p- 6 jol:beftbbvi)*v-h i of the bulbs are identical. Which bulb will/*b3e -i: -hiuthr j0f)fbl6:m,epb vvol t v9 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 switch axfk4 w lu r4)2-j*cquind three resistors are connected as shown. With the switch open as shown ix2i-uw )* 44ujqfc krln 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 ideal ammeter, a switch and three resistors aw/,r:b zu1 ljxre connected as shown. With the switch open as shown iw1 bujz,x/l:r n 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, a4t 09copwnx q1n ideal ammeter, a switch and three resistors are connected as shown. With thcn9wqx04pto 1e 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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