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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 cohnh+ 5j8gh7btnnected to the battery. Whnhgt5hb+ 87h jich 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?


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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 connecds 6y)kd9k e 9n j,utfu4;5ipyted in parallel, the_________each resistor is jyy9;n6, 4ekdi)59ufpd tksuthe 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 ligc3)dl nim4mu)x1 +wu ahtbulb causes the filamenim +cudu)x31a)4 mwnl t to become white 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 ok h4w-, ryhl;mvhsmt5t 1( +zreplaced with LEDs. LED is the acronym for which one of the following ck-wyhtl5 4r+hv s;tz ,o1(mmhhoices?

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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 area b;el/:zrk*r2d c +ddkA. It is tzldde2drk/ *:; +b rkco 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 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 material. Wire Iv9ndry:7 z4i4f:ms -/-iwl esb zd3rg I has twice the diameter and twice the length of I. If I has resista rfvr- sze li dsbz4ny:d3i/gm9w7:4-nce 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 anduem;xlr9+ +xv half the length of wire X. If wire X has a resista m+l;u9e v+xxrnce 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 resisn o4 -ymrzp9i5,sy9evtor has length L and radius r. This piece of material is then drawn so that it is a cyli9i,- pyyrevnos9 m z54nder 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 Thoma v-)vi6 zn0zln. e)reas Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament -z ie.)lv)a ern0 znv6of 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 mater z y+3dtt9g-crial. The length and radius ofdc -ztyrt9+g 3 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, each of resistance R, are connectbzae4g- t1 +we6jxwc1ed 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 i+-1c4wx w t1gee 6ajbzs 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 resf xhx,,1 fnvwg 51nd,bistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter r,1vf 1n bdx gnh,,fwx5eading 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 throd1f7hh98n is 3nk-z f*1jknnee bulbs 1, 2, and 3 - represented as resistors i1f93 di*-h 8oznnns nj7kk h1fn 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 thut4k/zx6 stb .e right. If the current in all three res zutbs4kx.6t /istors 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 ele07gso 7 zp 3fphljrp80ctric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichh8ogp3j0rlp7z ps70 f 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 circul3 )-iou qvzb3 *cznv,j*sh0lit shown where resistors R1, R2 and R3 are have equal resistances? zv oz-nib3q*c3h jl,l)*0uvs


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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 aoa / 6ol3 50kbwqixq//oxt t/a battery. Bulb X is brighter than bux //ox6wqotb 0ol/tk/5 ia3qalb 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 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 r6c)e4gc,8tl2 *c ov /d5szafjw g5lk cesistor in 5 seconds once the circucgfkwgsvda5cco5,/z* c)2468le jt l it 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 vg.g psyx0. brmr*(w. the following simple circuit have the same resistance, which would dissipat .* m.xv(wr0gsyrbgp .e 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, the current throusrj :paq; *nu3gh the 6.0 Ω resistor is 1.0 A. What is the power suppqj3u *prs: na;ly 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,caaz sh;(w+v win/3e in series to a battery. Suppose R1 carv/(+aa3zw;w,hn cei s ries a current 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 y4ktdm n/ f.d+connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R km/fd+nydt4 .3?

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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 maximumh7y9)dz euh :aq wzx 6u:vz:rsa9y*l5 value of the curre7yyl z u v9wza)zha*:deu6r9x:5 qh: snt 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 at huf q/*)1;ohbz s+v fe120 volvh)h1sufzfo */ e+ ;bqts?

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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 thro:zy7l88 xole7 bef0tj ugh a 4 ohm resistor that is dissipating 36 watts of poje 8lly:77fe z t8xb0ower?

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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 "120 volt, 600 t9r-jja a/xw3am f5 k5watt.” In normal use, the current in5k/r3f x t j-aam5wja9 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 x ,7 i3gcwrx3pfollowing resistances could NOT be produced by a circuit containing only three identical 6Ω resisp xg3cw3r7 ,xitors?

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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. Which of the following equivalentqpxame2:d0h f3w5g qk 7cd62w resistances CANNOT 7mc hedpw52 k0fwqx:q32 6adgbe 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 c2 jq9gd bgt p1r /61)q1upzeyvg/-imhonnected together in different configurations. If all three resistors are used in a cir-/yrpvpeg jt1q gbu1/9 6d1hzm) 2gqicuit, 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 totawq) .olk4z4agl power P is dissipated in the circuit. How much total power is 4)o gq.azkw4ldissipated 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 nsldsp)pb 44c cfk:xc:2:0 md, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of c:d4 xs ks)2mcpd l4 nfc:b:0pthe 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 resistancemrr lu ,p1i6tth20 .rn of 12Ω when operating at 120 volts. What is the minimum at1 u .t,6hpir02rnl mrmount 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 throughq:a0 segiz39vflf b8, a 4 ohm resistor that is dissipating 36 watts of power?bl,e q9 8gva0fsif:z3

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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 ofxa8/sc ivc +e4 current when connected to 120 volts. If the price of electricity is ci8a+4v cxe/s $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 coso sdkv :v81*(w hzbo.bd(zqe7t to keep a 100W lightbulb lit continuous8do * .(:1b hbzdwz(7es kvqvoly 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 resuj)-y96 +dqx5gr /4ncwkiwc my lts in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulb/cdw)xc9ryqg6-j5 ky4 i +wnm?

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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 own3 )k7p khed: uze+bcz41j-chns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged h1)ez pjen4kd 3c+cuh7z:-bk 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 resihcoeh mbag) u *uu77+5ycn2b5stors to form a simple circuit as shown* hh 2)gucyc7mb5e5u bu+an7 o 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 c)zq. -wxktx 5sircuit as shown to5-q tx s.z)wkx 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 and three resistors are conkh8z7 uo6dg x+nected as shown. With the switch open as shown in the diagr+kdxz6 h u78goam 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 and three reaag8kbe do 6:/x-pkog32ee7 isistors are connected as shown. With the switch ope/e g -gop eox68iak7e23ad:b kn 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 sw ei+zxzs9 ir6e9 ddubxvz,66,q( oj z0itch and three resistors are connected as s ze 9bd0iz(6,dxvr6zj+, iux6 seq9 ozhown. 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 equivalent resistancy +ica/9 4mot2ovg8wme? Assume that all wires are ideal, the battery has /ic84+g mov9ywma2o t 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 the circuit shown to the right withbn);to ;uls5 q resist 5u;bosl ;qnt)ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fivt/vt bts4);v fzd -n,n ld6ga5e identical resistors connected in a combination serf6bdtl gn;n,v5a tz tv/)ds 4-ies 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 five ids ;tm 3:j8lgm: ddao5bentical resistors connected in a combination series and parallel cibatm 3ljg:o s:m;85ddrcuit 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 circb wkymg y zn.3h5/d r2r:cc+c(uit diagram, all of the bulbs are identical. Which bulb will be the bribmy:rc5ck yw (./cz h g+3r2ndghtest?


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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 m/8 rk.o zsle8ammeter, a switch and three resistors are connected as shown. With/ eor8k.slmz8 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal amff4y3enf 6j1o08 k zw1o1gs mkmeter, a switch and three resistors are connected as showonfekyos1f6 w0138 kmg zfj41 n. 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, an id/l ruzk+jjc+wm51j 9 geal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rkwz9j++/1jm5j l ru gceads 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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