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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 z1n .r m0/czqv45y3sv mlcb/gin 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 interiolzv0n.b/r g/ymm zccs5q3 v 41r 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 rel/ v,og9 gw9d g+6snzjsistors are connected in parallel, the_________each resistor idg69 + /gzsv,jow gnl9s 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 filament wire of a lightbulb caug+zt5iwv9bag38w k ecv0h8d -5pid;o ses the filament to become whv ic8+e ; gd 5va3hwo9tdz5bkg0i-8pwite hot, while 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 witj 5 rwu4/jy*imidwwur5(m,+ uqkhe53h LEDs. LED is the acronymri 45ewd5wwm 5jyq*hrmu,+/ juuik3( 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-sectiona1famdh.dy; ors ct 3kr*gsn -.*ly82 hl area A. It is to be placed into a circuit, but it first must be cut in half so that the newh2d hsdo* 8.fsk13crm.g y yt arl;n*- 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 g.hwc; 8i-av jmade of the same material. Wire II has twice the diamete- vh;icjw.8 gar and twice the 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 samep k1(7)k/1pc 6 5y dulvrslkln material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y woc 6l5 lp n7u 1k/lpdkky1()rvsuld 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 leng- apog-/wbxyp/8z:c p th L and radius r. This piece of material is then drawn so that it is a cylinder with new length --c/ opb8wzxapp y/g: 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 E2 e *k9ut9i- aawipf2pdison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltage? iiekatp *u92 p2wa-f9


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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 ;fg 8h7glh3ba are made of the same material. The length and radius of each resi8 lf7ga3 hg;bhstor 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 ah9g e9ajekz++-tz k:rzg8 y8i 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 k99 +hzr-g+z zieeyg:j8k 8t ais 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 diagram has internal resistancexj js f);q+idj o+-( ntqf2:jn 10.0 kW and t2jjo;dx+jjfin )f:q (qs+t n-he ammeter has internal resistance 25.0 ohm. The ammeter 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 threerohw,j //vp/fh(p4n9 ro -p fe bulbs 1, 2, and 3 - repre rh 4//pr,ppvh/o( jw-9efn ofsented 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 circuiss6hq2utd , unx:d2p s+viq*k.oj -*ut at the right. If the current in all three re+ 2ut k :jis*2s.vhxu dsqu-dopqn,*6 sistors 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 composed cp;rtbxs*3r9 of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs3psr;*b 9tcrx )
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 tru+ra; m 9, wqo;qo (mba4zi;uykmm5 mza,)/tlae concerning the simple circuit shown where resistoizb ;4r/kwammq+qm; aml)t9,amuo zao(,5;y rs 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 andY are connected in series to a batte07cjdc qt r+ 0+z3zu3gqreq -pry. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ifq-0c u+qqgz+d3 3rj0 cepz r7t 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 inux0tc5di0y*l0xy j1 , svn8/e kg8j ev 5 seconds oncs x8c8t 0 j1,*djv/ vyiku5ny00geelxe 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 simple c+k+xjp 9s h;)u 7 ;yttdzj+wfsircuit have the same resistance, which would dissipate the greatestk t9su;;ytjdf 7w+ z s)+hjp+x 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 thek2czsa cm1g4vb3pu 0 w :cy.o( 6.0 Ω resistor is 1.0 A. What is th k csbo2apv0c muwg14:3yzc. (e 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 series to a battery. Supp*48lg5y yi jcnose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of pow4ny ygi*8l5cjer. 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 conn35srz:2 7c6 cwmw krq)cv, d)ey6d lhxected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6:v)wcy hqskcr3 dedm w65c7zx),6rl 2 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 volts. What is thexvpjezoz.d6v 9l27 i/qqm 27f maximum valu72oe ji d9.q xf6vlz7q/zm2p ve 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 resistancca pf omgr31anf/2(3ne of a 60 watt lightbulb designed to operate at 120 nnp 23 of cafm(1g3ar/volts?

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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 20oospxcy rs(7nn/,a t /kjz 6ohm resistor that is dissipating 36 wacytnxn kpa2o(o0r6jss z/7,/ tts 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 clothesjcnw16 qgdx4 ) is marked "120 volt, 600 watt.” In normal use, the current iqcd1n x)jw64gn 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 NOT be produced by a circb jzvi4q9 ,wxb3)i 2nquit containing only three identical 6i)9 ,vbbi4q2nw3jqz xΩ 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. Whigfm /rxjcb/e2 c 0x649iv3qfnch of the following equivalent resistances CANN 29gbi /c6c0frxe3 q xvmfjn/4OT 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 dif oe*u* bnru820,yp / zube;uzdferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of totalbybu,pdue ;8e*z2 *u 0/zourn 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 t.97 ch y-h xv67wxtxnaotal 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 internal resistance of the bax xa -n chy7.h7wx6tv9ttery 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 resis75ca2b if iuf8ji7/)rn ohra:egz, n7tance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about ei j f7unon)gcr7:2 birifaah/z58, 7 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 th.(pcw,r /hrz wat it has a resistance of 12Ω when operating at 120 volts. What is the,r(wpw . hr/zc minimum 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 through a 4 ohm rbs:s. q8js/vv3 xjd6resistor that is dissipating 36 watts of po/jr3jsq 8s bxd.v6:vswer?

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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 cmcz e.,osavm4razw4+m1 il w (f,fg ,*urrent when connected to 120 volts. If thcl rmw sm.zavo4,wmzafgf1 *4i+(e ,,e price 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 howf (c13g3t mjf w ustd;fi0:0at much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate ofw00u; t(ift t:ms jf3gaf 1c3d $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 Aqqj 4gbhev10kwa1jf:geyuq2 047 , gf through a lightbulb results in a power of 24.0 W associated with the bulb. Which on:h v0 w2q4ejbqj4fg,e0f71k1ag gu yqe 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 wattso*9q2 6sajmhcms-w) i in a 120 V circuit. I iqa9c m *)j-swsmho26f 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 ceh a fz 1ro7fs3qgot h;(8mjb,z4 t78to four resistors to form a simple circuit as shown to the z (om1; ztgt,fh783s r h47 8cfaqjbeoright.
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 sim we tec1k;k*2eple circuit as shown to the right.ecw;1ee*2 k tk
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 an +dh1bu l ne5/n)gdoqs; e8z.cd three resistors are connected as shown. With the swn b1h8 / lz.cnsge+dudeq5);oitch 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 anc2ivjrbk0* r(d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am0(vbj cr* rik2peres.
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, ai-3r 5e7kaa6ow o5v9uq tthw+n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th-k5tr5qw3ev9ioo 6 a+hautw 7e 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, zc9ep y0c(9dm 0va4yowhat is the equivalent resistance? Assume that alem4oc 0vc90p9az(y dyl 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 resistan ,bu 2idv0f9lxce of the circuit shown to the right with resistan, fvx du902blices $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iv;k n6oi u )foe+ou9n/ur6-yedentical resistors connected in a combination series and parallel circuit to a vufno6on)+ eke-uvr 6o/ui 9y; oltage 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 identgr;a:fbsj(z z r n845yzj2,m2dgb-z hical resistors connected in a combination series and parallel circuysr:,j85zzg2gfbbjm-4;azrd( n 2 h z it 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 b10t zf*38.5n djzln9m d*semuojcs c8ulbs are identical. Which bul.9o dj 8l8cts zu35fnn* med0zms*1j cb will 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 three nsd;o*vzgrb b ). mbohc/g559resistors are connected as shown. With the switch open as shown in t/z*do vb5 5rgbbm9n.)csho;g he 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 idealtau6mdz8.93 lwejy 5h ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 at 56w zl.jha 8y3dmue9mperes.
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, adt xgmmqcb8o-3ai7cf 1e*3 / s(ns yy, switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am/g3mnc13*fdex- syos(bq a7i8tc, my peres.
When the switch is closed, what would be the current in the circuit?


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