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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 resistor cd)r0sch p,sl jd d9p9;onnected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the dirhl;d)p9r 0 csds ,dp9jection 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_m4t,gwawk9 * jjl*f9b________each resistor i 4wgb,*kl fjm9t9aj*w s 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 oo-np x3hc4s9the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb sh c4-o 3no9xpremain 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 th s*45i:*f*9)wr w8 ejutvkilysi)sLEDs. LED is the acronym *) f 8svk9*y tw 4eslr5i)*j:hwt iisufor 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 le:qfl l/zpx3rivirl4 ((k 6zoa40 0mnt ngth 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 old resistivity of the cylindricalz:30t 46a(4r lpfox(i nkmilv0r/ qlz 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 Ify5.qh mu3, j1fwu dh 37ghfkn /1q6azI are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resis6qku.qgafuh 1 jd7ywh,f15 33mh/ nfztance

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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 dl2 9x+ lq,+dx5:a ekaex g:qoliameter and half the length of wire X. If wire X has a resistance of R the2x 5:eelaa+,9+lkqxx qg d o:ln 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 anpj4mz 8w y f9-;ueqd,sd radius r. This piece of material is then;w98u ed-msqfyj 4pz, drawn so that it is a cylinder 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 m qpi.5av l4fy89* wapmdx1 q2yo-0 odvake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to maka -5l 1f xqvy*miodpd4q92ow p08.vyae 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 ;h0s re7kcppe md 9x.6the same material. The length and radius of eacx6pmk .ep7d; h9rs0ech 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 resistan;i nlonal v+(,ce 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 resistance of this arrange(,al n+oi v;lnment 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 internal resistance 5bxg2;bkzh )qpf6*q0cpp xv4 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ambg;)bcx 5 6pvhk2fp0p4qqx * zmeter 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 tlwwho(e mg;gf9.. n 6xo the right. The three bulbs 1, 2, and .f g6me xw l(n.;gh9wo3 - 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 electrical circuit at the right. rio ;i(y xg*h2o n5-dfIf the current in all three resistors is equal, which of t(gdo2 f 5xony i*ri-h;he 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 rigi/2 d4slh kcae o8;0aoht represents a simple electric circuit composed of 5 identical light bulbs;i0k8/o lshc 2a4aoed 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 statement aqqfv1+0 pcj5s is NOT true concerning the simple circuit shown where resistors R1, R2 andfvjaq51 p c0q+ 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 connected in series to a batt h69i be,iw7k0yk*:maj b9 qlrery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with eacby:7k*b9 jhae iiq r60lw9m,kh 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 resistorcnh,oog)5s 7+w lq0tc in 5 se n)cqtshg,o7l0c5w +oconds 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 fov( sshlmd ;j9e4nou c7i* 0*htllowing simple circuit have the same resistance, which would dissipate the greatest ;*o mh*09sv4tusn(c e hdilj7power?


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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 throug* (uz7boo3 vevh the 6.0 Ω resistor is 1.0 A. What is the pou3*ve7o bzvo( wer 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 f /qsd:bdjtl6kf k:,avdv 17 7R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates ,kddj: la77v:bf fk1tqsv/6d 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 connectedw 72f9*;hbm vxf:dd*j z.u2.yltfj dc in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curre 2.t.jdfd;jfyc w*f:9vm*b2hlx7zdu nt 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. What is the :4 gzmkh4 i2ezqv8 -yomaximum valuk zzo y-4evghm i84q2:e of 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 operate atnlp dsl r s(umk::) ojt ghtj+,-q,3,b 120 volt, bsdk:ut q+,-)mp(ns :jl gtojl3 h,rs?

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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 dissipating 36 wa*lflb w*rde)nw 6p2,btts of powerlw6n*l w 2rb*e dpfb),?

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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 clot3g/fr fwf fkd mdo v24c,2 +6y++ldbdxhes is marked "120 volt, 600 watt.” In g+o+kf 3 bwm2fddc dl 46f+fdx/v,r y2normal use, 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 NOTdejml ) jp7b*m 7id0i1 be produced by a circuit contaijjp7ibi 7emdm*0 l)1dning 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 threeak:tggq:am( -2 .zbbg 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resis2 : azg -bb.agq:(mktgtors?

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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 tognr5v fyu:6/ 0nous8:mo mu-3wnqfp (fether in different configurations. If all three resistors are used in a circuit, how many different values of total re uuo( /f05 o y-vmu:f3n6nfnprqm8w:ssistance 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 batteruj +54y9a ozu ej+jh4ey, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the i5e 9h+ ju4+uozjayje 4nternal 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 connected ,r3b8/y me b,;t/ao f/ z7gixoxb9bqqin parallel, the equivalent resistany rmb9;37tg8/,,zob//a eqox b bix fqce of 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 designed such that it has a resistancldo8g 2hcr.) ee of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg o2 de lr)gh.c8of 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 r,dfx;sp n92fe esistor that is dissipating 36 watts of xd9,fnf s;e2ppower?

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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 nle4q+jo;y 8 mcurrent when connected to 120 volts. If the price of oe m qyn+;jl48electricity 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 lightbulbk p304y e-s wy+nr-cab lit continuously for 1 ypy 0 4+cs3rby ne-akw-ear 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 36xv, js qdxne;x c-2jin a power of 24.0 W associadn6c 2s xq-,x vxe;3jjted with the bulb. Which 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 6 stuwq;vv3w;e+u.xw a family of six owns a computer rated at 500 watts in a 120wuvv; 3q w+;sx.6wt eu 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 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 4v)idw)dovk4 a simple circuit as sho4oi))kw4vd dvwn 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 resu.sb t5 ptw)* 2q)0xayk ig stl6fra82istors to form a simple circuit as shown to the righwa gs5t rals)q y 2x0u.6tik 8ftp2b*)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*z3ulx z02mqbek jbv z908r;:cz / vpo ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagrlv:b/zzzmuc3br0j e 8*k;9p0vq 2 z xoam 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, (b(5j;p ycw,8v8 nosfkq z4;zaszl;f a switch and three resistors are connected as shown. With the switch open as 85zb8avqz(ps4l zk ;c ny;f;fowjs(, 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 id n0qc,)qvge c0eal ammeter, a switch and three resistors are connected as sho,qgc0v) cen0q wn. With the 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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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 eqyc dunf5.uzi42 n4l-pwgec 5 yn i)*qcer+8 5uuivalent resistance? Assumn 5 u.nic45+n iur8y4q dwc2-cgy *5fezp )ulee that 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 resistanc3,ydokfr2my 7 e of the circuit shown to the right with resistances2o3m y f,7rdyk $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisty+im2w pim0-mz0q j,yors connected in a combination series and pam+yyz,w2mj0 mp i-i0 qrallel 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 bd;swe zev*89w2oac+g: 6nh hielow shows five identical resistors connected in a combination 6;8c*ov+e2w9:hdh e iwsz agnseries 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 of the bulbs are identical. Which bulrh z dp421yhrs bun+ni 2 f2p5.hu9b4sb will be the brightestp2iy . 4bh2d2ps9h zfu rbn+n 15s4ruh?


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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 amm,ji7u z *po0lweter, a switch and three resistors are connected as shown. With the w7lo0uip*z, jswitch 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, a switch and thd )f4 /qf/bpdx-j;a odree resistors are connected as shown. With the switchfd b dd/;-qxpoaf/j )4 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, an ideal ammeter, a switch and three resistors are k+iia 3xbk-x3 2eat6i connected as shown. With the switch opa263 +b3-ktx iea xkiien 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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    总分:50分 及格:30分 时间:不限时
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