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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 iguq6ayo ujc47yl :-*qjea :b .n 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 interior of the resistor?q*.j4yaqeg u bu:-:c y7jal6o


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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 coxr0zi ig g h1o-ff1r+3nnected in parallel, the_________each resistor is the sa rfxg1figi 0o+3-zhr 1me.

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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 throug 692iwkw5 b1t7qo.v3qg heqv oh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lig v293qkw7gqb1tv 5.ho 6oeqwi htbulb 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)4mv2ni w +hdlyz3 1rdlly58i lights are being replaced with LEDs. LED is the acronym for dz ly+ l)2nidvyir3m8l14w 5h 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 o 5n)7 jbvstw.area A. It is to be placed into a circuit, but it first must be cut in half so that the new n 7w5t.ojv bs)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 madvpua8 ssx a9e7 i;dz9-e of the same material. Wire II has twice the diameter and twice thesu;aazsx78 9 v9-pdi e 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 has twice the diameter and04*ck dtl6p qq half the length of wire X. If wire X has a resistance of R the dqk4* 6qlptc0n 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 piece of mk .tbnnz m vnd1va-5 )ewz14m1aterial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this -nznmze154 1dvk mvbwat1n .)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 w+e;*hmkwooz 5ants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb *o;+zeho m5kw 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/4rg xdqf8t(/q; hzq t resistors are made of the same material. The length and radiu4z;t8xq (grq/ h/qdtf s 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, eacx*hxmj t,de*44raub )h of resistance 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,tudhmxa44rb* e j*)x 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 accompani75bfo((pwfy ying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmet5foyfbi(( 7w per 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 como.cy(kjcva z-r+,ccm )7*z rrpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagra.*ac - +krcrcj)mc(,r zyv o7zm
- 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 cuv 1nsm8qds0 9errent in all three resistors is equal, which of8 m19nsv0 qsde 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 composed dr7ui5 dtt8;bxiy0k5 of 5 identical light bulbs and 2 flashlight cells. Whtdkrb8 i;d0ty5iu 57xich 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 the simple cir7m8( fj.ws+ mfukt8cjr crqt .q2sw 02cuit shown where resistors R1, R2 (jwcmw7rj.2 frk+c utm8qst82f .s0qand 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 o f78qgfc1a(p andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume f71gpq(8oac fall circuit elements are 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 the identified resistor :2 8j(v5wjfbn7;byrxngq e g8 in 5 se:f285bxb(jgrvyw;eqj g 8 7nn conds 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 sy3a ;k8d lltf0:x8p csvj:84psvlo t*imple circuit have the same resistance, which wf*s:l yol t:kp0l8d;csjp4 3v8 tavx8 ould 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 accompaea2f90qi c)j rnying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the p9 c)r02jeiaf qower 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 R31sgzu5 r(4b; lkkd bnls,r5r( are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has (nsurr14ld ;z 5,s(r b5lbgkka 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, R23mqmoce n 684f andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W.3oemnc6 4fqm8 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 volts. Whatffia*dw1wzb58 c u4v+s y2cl+ is the maximum value of the current under these conditilfwucd5af +i*8v+ 2 1s4cybwzons?

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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 lightbul;9qgm2 non* yqb designed to operate at 120 voltsgyq*29 non;qm ?

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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 ,7s:3 dy5wl lk4yspcha 4 ohm resistor that is dissipating 36 watts of pcds:k 57y43s yhl,wl 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 brm2.bhn) :ci*(7ehgtkt 0 ebis marked "120 volt, 600 watt.” In normal ()tch.nrt0: bh2b kibege7* muse, 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 resistances could NOp8ziwz5- r j2abqel3 0 y(:x kl.im.xwT be produced by a circuit containing only three identi:ixx 8(.y3er2z .kljl0mwwpqi b5- azcal 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 dip 9h+ jm++ylrs /vu snng54 7q.lt1uthree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT jg1.9h+5purssv nil 7 y t4 luqdm+n/+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 resistors of different values can be coefpb n5 7 /4f)qspt6ulz/m2junnected together in different configurations. If all6 j)4qt 7b snu/ 5ezu2/mplffp three resistors 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 totalsyikp3r rrw4 n.5wg4 ; power P is dissipated in the circuit. How much tot; w5rkp rg y4i.snw4r3al 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 an5un k)rzh- 5ug4++ mzo.nllnid R2, are connected in parallel, the equivalent resistance of the combin 5 imhngrulnu+45 lk o.-)nzz+ation 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 designed such that it has a fni 9)jabvi-ua pl2qav g* .16obqu65resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w u 51ol9fb2 vaivn*)ga apq.-b 6qjiu6ould 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 dissipating3qxp.id :hy.2rnfhvw,t0l r.t2 :rmn 36 watts owd. p thvr0.fh:mlr2 niyx. rn :q3t2,f 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 whe o0jpk+.*(tkvumu0(xbp w 2c mn connected to 120 volts. If the price of electricputb jx(0. m(pkc* 0um+ ow2kvity 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 tvx lf cz 6d*o :5)ipuqoufp3+4o keep a 100W lightbulb lit continuously for 1 year at a rateuz + *po5fo c)xqi6pv3 fdu4l: 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 power ontvtjy i x 7x;zk*0z3-f 24.0 W associated with the bulb. Whi xn0izk* 37tx y-;tzjvch 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 six owns a computer rated at 500 wattsc r cecdw*q mxz+ru**q2r w7-7 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 computers can be x*q2+ -rr7*erwcwz*cmdcu 7q 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 i6 x w(;j2 rnhgd(0,hy:ogeirvs connected to four resistors to form a simple circuit as sh hg d0: nv(2ojr;ywh 6rx,ge(iown 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 conn slr1j18cztw 0ected to four resistors to form a simple circuit as shoc0rj1 wt szl81wn 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 switch aryjvt h: eg--.+f.ts;w 8ohwand three resistors are connected a-tewht 8 - ;y:ogjs+h.fa.rvws shown. 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, ae 0oly-:di/ pd switch and three resistors are connecteidpdl y/eo:-0 d as 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 swihxo:xdu-( ce wx nhs97. 1y-satch and three resistors are connected as shown. With the switch oauexh:ys w9.(doh- x7s 1xc- npen 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 circuitnq 0dros mb(n9.wa(z4 shown to the right, what is the equivalent resistance? Assume th0zsm(q dna9 w(rnb 4.oat 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 resistance of xm0iydlk 5 i7e, 10kvethe circuit shown to the right with resistyl edixvm7e0k 50k1 ,iances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ij- 2m/f.vz,sa m2pzoz n a combination ss zm .-2faz,2j /ovmpzeries 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 fi8.rev j mqd ner65v-p8ve identical resistors connected in a combination series and paredr.ve r5 jpqv6-8n8mallel 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. Whu,ql dqcvcf8 j)-l1e+wb4p(a ich bulb will be the brighte(c8wdvea)cqp+lf - j4ub, 1qlst?


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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, an40-gn o6 tolmky4 w*f(3bmw ig ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterlw*wt (k4gb3m- 6f yio4gnom0 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 anzg q,l 5ch:bg4d three resistors are connected as shown. With the switch ol:bc zg 4gh5q,pen 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, an ideal zuqe;b 3+) 60puqho hxammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter; obuhh)q+3zux e0pq6 reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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