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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 the metal qr6)*t dn ,ah rxut(c j6dty7: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 t *adr )h (:6ycdjqrtnt 7u,6xthe 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 resycalmki rut )y93og 1z7:j5,ristor is r zma7 :,95g3rltyokyijuc)1the 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 lightbulb causes td6 6 nk* jjsvce;jjsrxy*i/ 8*he filament to become white hot, while the larger wires connected to the lightbulb remain muc;s nj6 jsrjy*kd/vxie6* *c8jh 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 argc. 9g .de;5 el 9:v) lts+ nqz-ttn*ch3vohioe being replaced with LEDs. LED is the a si9lvdgc zqh) :eoo9n5c;n3htvt..-*e l+gt cronym 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-s(-dcp -iq iu+uectional area A. It is to be placed into a circuit, but it first must be cut in half so that the npcdu-( qi-+ iuew 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 th3:m;a) f*f iv eu,iw5sg j)xyo/)dhpve same material. Wire II has twice the diameter and twice the length of I. If Ia*sdg/u; fi)iyh3v,)fop v e jw ):x5m 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 diamey 2 d-hq(it)5ixr6lcp ter and half the length of wire X. If wire X has a rephxci(yqdl62 t r 5-)isistance 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 hx 69fu8y8lfnfas 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 because fl89x 68fynu fof 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 m d 2u0tzc hf21d8p:ir,butno7ake a brighter light bulb. He decides to modify the filament. H1u:nct,zb2 dp7r u ho 8ti2df0ow 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 material. The lensn9m(oz5wb /g). b( yzbcrvn5gth and radius of each res( gs wcz )o5.n59(/yvnbbm bzristor 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 resistanu5ds:d93zi.vkd1 dex( a cn(uce R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallelk3da9duis :x (n1 v5d.(cdzue 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 dild2- lydzfwze9.ggv;7*)zypla ; / s vagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1fse7l. v;y 2z)*z-/ y9pla dgzdg;lvw.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 bulbs l116(suzc s )-awozlt*ux ;zq1, 2, and 3 - represented as resistors in the diagr -x1w;a)o ultq lzz u16s*c(zsam
- 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 all/8qxy( s6 bcmq three resistors is equal, which of the following sy q68mc q(/xsbtatements 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 representa75 vh jfhv4g(s a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wj7fa4(h 5hgvv hich 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 foll tlwu r.6k64jiowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resik66rw4 ijlt.ustances?


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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. z3cf88p80d aaohs1 m yBulb X is brighter than bulb Y. Assume all circuit elements dhapcf8 z3o 80ms8ya1are ideal. If bulbs X andY are connected in 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 coulombs will pass through thuksu5mjiw)+- e identified resistor in 5 seconds once the ckjsm-5 )uuw+i ircuit 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 simple circuit have the s ixvq v tlu;b.61uk84 +h+lkxpame resisbx8v1i;k 6k +4xuull tpv q.h+tance, 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, iz5 rm 82fv:shthe current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltm r:iz5 hf2v8sage 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 cod,wd, 3 q7 ucct+8ghcnmw49 aznnected in series to a battery. Suppose R1 carries a currdcd+9uw4q ,c3hwcgmn 8z t7a,ent 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, R2 andR3 are connectemluh4;qu, x2zfe)qn f 5d,o 3ud in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesux4m lqq,d;f ,o2enu 3u5fh)z 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 voltc1lnbs 8t)+sd s. What is the maximum value of the current unde8ssdn 1lb +tc)r 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 designexi o;0 .6azchld to operate at 120 volo60 x; claz.ihts?

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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 resistob1 j xoj6)cyw*r that is dissipating 36 wattsx*b6w )jy1cjo 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 marked "120md .i 2sbp-7 svvlpjv. 3z+w,t volt, 600 watt.” In normal use, the current inm,v. pt +pi-32v.v 7jsws lzbd 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* 7zma(vyznfa9,r 7 iva+av6i could NOT be produced by a circuit containing only three identical 6Ω resisto,7a f7an*6v(zia9 va iz+ryvmrs?

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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 kb7 m,;z ,7dvyx iea3 phxzn;-1.0 Ω resistors. Which of the following equivalent resistances CAN-3 bnm da7zzkx;,y;7xeiv,phNOT 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 resistorspk1i 6b7jr/ o v3ltrc6e 76 ooa7z;ffj of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different valu/71 7rj6fitp 6erc6objoakfvzl7;3 oes 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 is disszq,jlso 3wr-h a i;7f1b) o;khipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the sam s;ab,;-l3z1 7rhifk)w ojhoqe 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 resistabzc /1 gny.hr+p7o6 mjnce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whic1+mnz7ogy6 b .rjhcp /h 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 z0ju-fiu1f:k4iw 8 a n when operating at 120 volts. What is the minim4-ifjfwkz 0n:i81ua u um 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 throur:sap5b -r1+s s5gbkto4 nn.mgh a 4 ohm resistor that is dissipating 36 watts o5m pt .-g1bs+s5baon4 sknr:rf 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 conz 9 fboga/vz0 k:b::,g,fcvhwnected to 120 volts. If the price of elect b,, a:v z9:h0g:cofvfwbgk/z ricity 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 100/)mv,+ mb nmm+pm66wuf me4kuW lightbulb lit continuouslymemnmf /m6pu ) ,+v mkb+64mwu 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 througr8i0sx a q*2rdh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistanci 0*8dxr sr2qae 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 u5 uc+, xa s7. a qznzf(t13foq7cjmf/a 120 V circuit. If all co1uc+t.(nuz fc o75a7f q/3 mjq,z xasfmputers 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 rel 9+ol+dwfb66,6 hdo ktenr3gsistors to form a simple circuit as slk oen+ bd,6fth 6rg3+lw9do6hown 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 simple circuitx-:b oru,g.mrsf*kr 0 as shown to the righ-r.r bruskmx0go ,*f:t.
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 rezkcmq:x6adl2 km83k9 sistors are connected as 6xlq9mkmz82kc a 3d :kshown. 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 sdelw i69gt8a3witch and three resistors are connected dew98l it a63gas shown. 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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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 s ivgjjcp3*5l2zf )z b8witch and three resistors are connected as shown. With the switch open as shown in the diagram tz23l ) gizj5*c8fpbj vhe 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 right, what is the equivalent rer+ k9hbwp6.v5f, b xxyd74zansistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistoanxy4 bvfz h+d w,kx56r79pb.rs 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 *ok5rr1sms f (.i ;a.hhean j,of the circuit shown to the right with resistances ji,(faksmo hh5; a1s.err n.* $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 show+)fy9+tddk3w 9uxok 5 z :lpy0hf1 jgts five identical resistors connected in a combination series and parallel circuit to a voltage sotu3)w9ht5d+ kzd1x:pgl0jfko9 yy+furce.
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 8m/iu 9lm;r gjve(qlea:;4. a wxkt, sa combination series and parallel circui; ( k4e8.:m,qlsx g e/wjv;imaural 9tt 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 bule;txbqa,*dn- zd9x* r+y9eaub will be thzeeny-*,*d9 t ;arua+ qx b9xde 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 and three res4ge8 y fcszaq(84ijmn )g8m:eistors are connected as shown. With the sem s jzfg 844ge )i(8yaq8m:ncwitch 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 ideal ammeter q0 c(lygdpo4 ++zht(g,r cx;t ,nec5k, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter real( y 4+t5dt0k pcgxrz (,+ecc,nhgq;ods 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 switcs-. ++qqavw /yhc3jvnem c* h2h and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. nm+.qhqace vh3 wjs+cv-*y/20 amperes.
When the switch is closed, what would be the current in the circuit?


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