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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 sc )b2;yt ymn3krh/,fvhown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electrcrm3yn b)k2 yf,v/ht ;on 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, thegnpg cds. -s8t3:i 3tn_________each resistor .d3p3:n sisn- tgc g8tis 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 filamnh0iqc 1y 0*gwent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to twcyqg 0n0h1i*he 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 thq cu.6lw-ksuzq e ;5s0e acronym for which one of ts-qk 0l6u5 csq.;e uwzhe 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 ja2x:bq j6w1oun;.e/au r,:) o ywuojL 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 io 2.:j16xbao y) uo:urjw/u,eja q ;wns 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 material5 xel0mt q3bz+z;s)r f. Wire II has twice the diameter and twice the length of I. If I has 3qr+5x;ze mzb) l0tf sresistance 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 and7k9;odpc* ug)i6 ig3)lgl jk n half the length oll 6k )g7i ncgkup3*do)j;ig 9f 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 haoo,f 9drttt.)s length L and radius r. This piece of material is then drawn so that it is a cylinder wit rf)o9 o,dtt.th 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. He mql0*sxs+)75pbmv yw decides to modify the filament. How should the filament of a lightbulb be modified0 s*qv)7lb x+mym swp5 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 length an2 h 4u6os2klpgusbw uoz.l15 3d radius of each resistor uhbz6uo3ou2w ksl.p1l s54g 2 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 bati6xbm3 lgu7 u6tery 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 resistance of this arrangement of foux6l um67ibug3r 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 int-(b v momt4tdp+k 4sw:ernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.m(tpdo+-: 4sm tbk 4vw 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 th/t *jz)ddr y2kca+m( xe right. The three bulbs 1, 2, and 3 - represented as resistors in the)mzk/ d*j 2+ac(xdr yt 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 cu a80fxa5v; hzircuit at the right. If the current in all three resistors is equal, which of tu0a h8 5z;axvfhe 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 cddkwun+o5gb)t8w 9/ zircuit composed of 5 identical light bulb+ ku5wbtd)dgn8/z9wos 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 following statements is NOT true concerning tuv ;dv*:v6zm 2:py p;dl enxs3he simple circuit sh6v :v3e:*ym pvuln ;x;z2 psddown where resistors 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 0+ob( 2 mwpmnfsb(t:r dd w6,nandY are connected 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 followmpbw(+ : wo0d(m6drntf ,snb2ing 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 identified r rm.9ces*q a(;+aw yz2rntzd,0t8 dsqesistor in 5 secondwdzr m r c9.,8sq(tyd;* tz2q0sa ane+s 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 zlf,d8*0v f+t;,ctt6 epmdh y simple circuit have the same resistance, which would dissipate the great;0 pt8yhtc6 v+fdl,*zf, md etest 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 the 6.0 Ω dao 61n;ie5.p 8 zk/sqkz) vkqq,)q mbresistor is 1.0 A. What is the power supply vo oi1 dkp/.vzeq ,q)nzsb5;kq )8mk6aqltage 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 se9h,ku sx 6lmgs5l1h7 nries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 d,ulsks 7 h951mng lh6xissipates 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 differe ly5jw vhx.p*m9 of+c-nt resistors R1, R2 andR3 are connected in parallel to a batf.* phvl9cmo- x+5jwytery. Suppose R1 has 2V across it, 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 ramc32/ mv lx)spsat 1sp:v: mo(ted 1200 watts and 120 volts. What is the maximum value of the current under these conditionsm:( stscp)oxv/ ls3p 2mma1 v:?

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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 60yg: 0.vmmclbzt y 290;+osxjw watt lightbulb designed to operate at 120 l20 t+; ygxs.mm0jo y9cvwz:bvolts?

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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 vjeashdl xy2yu . a i:u4t:c)(*z f:,p4 ohm resistor that is dissipating 36 watthzjuty: d .uacy),(fp*xi 2 4l:v ea:ss 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 "120exr/:mfs3+0;bxj 7h7t v r vrns9dr8l volt, 600 watt.” In normal use, the curr:slnvd7r3r+ xj;m7/ er9vf 8ht xsr0bent 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 resistancq0/qo rhy.s q2es could NOT be produced by a circuit containing only three identical ryo2sqqh/ 0 q.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 thri,ppgn.p da +(f0)kb)pk 6 iru t65xtree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produce0,k tp+tr6gfrdpbuxn))( 6i pik5 .pad 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 c 2rnpuke33f, jan be connected together in different configurations. If all three resistors,jfrup k en233 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, ahcvwfgj uv 0 * 44/whh h+)mav)(qodv7 total power P is dissipated in the circuit. How much0oq 4hfv7dgh*jmw4(v +a )hvv) /wuch 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 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 connec-o l(ss.se2 zu7ahlm- ted in parallel, the equivalent resistance of the combination is 5Ω . Which of the followlss7z 2oem-.l ua(hs-ing 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 it6 )1s nq5zpkhd has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wou )nhpq d5s6z1kld 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 thwe)d49wy*q cw 7gcwe(ou ( fn7rough a 4 ohm resistor that is dissipating 36 wa (codu )*7cw9y(feq wew74wngtts 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 ae83u wea 302b fhpmtd9mperes of current when connected to 120 volts. If the pricem 83u3 dhbew2 0fp9eta 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 howhj (6n/1 vuxskd*wx37fxwx ; r much would it cost to keep a 100W lightbulb lit continuouslyuwkxv713j*s f6nx/dw h;(xxr 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 res+gsu j-9 ga kel7ukc,+ults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the liu,+gu7kls ge kj -+a9cghtbulb?

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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,o2gg cj;tgx k t 1/lsqk3oe 4d/bdy8j(znn-) rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circui4(- 8cxbq gjs2;n eotgdyzo,t/ d)gnk /kl31jt 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 resisa grwiwu(v6z4 x5gi,9dti) q 2tors to form a simple circuit as shown to the ria 94,udtw( zg) xi5w6vqgi2r ight.
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 a5 coj;rwq kqa8ug7w:9 simple circuit as shown to towqq ur7 kgac w85j;9:he 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 ideadb/ -a3wlv )pa.h7er, qfr )kbl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am) fw al3r)-q7 .dv/,abek rhpbmeter 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 batterd nhcr8m yd(*o6li96:,c x znry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the h9:xcd z6no8 r(6nrm,cy* ild 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 am j.yjo/,2zn vc.r1urzmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter yjr/vjn.. rczo 2u,1zreads 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 o(r5xgr 0 uu 9x:ii:dnthe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have iddix(o x:r 0g nri59uu:entical 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 equivalen gkiifu6 t0myy*-fg .;t resistance of the circuit shown to the right with resi; gmf*.ky06yiftuig- stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 yp zn5nnb73(2 r zysa.shows five identical resistors connected in a combination series and pyzsr3.abn(py zn 5 7n2arallel 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 resisto) rm4810vchd ph t4s21nqcio lrs connected in a combination series and tv1i r4lq2hhdo)p n0m c s8c41parallel 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 ide+ u*gbbx zk3t)ntical. Which bulb wi)*x tgkzu+ bb3ll 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 and threr4lful2 pt get*k-(:hez2/g l e resistors are connected as shown. With the switch open as shown in thee2gh2r4l/ k u (egztl*-t lf:p 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 a)tu; xmztn5y9 0il wuc-vi51 vmmeter, a switch and three resistors are connected as shoz-t9twciui5 ylv n;x1v5 um) 0wn. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery,cbvlml)tlmy o,5( ,a.mp dm62 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram tlm)5vl co6 mbap.,,m(ml 2tdyhe ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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