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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 electevsos-d*qx 5(udd 9h3ric current exists in 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 of5xsuh 3e-qddd o(9sv* 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_________each resis;9a :+ac bnu; z xrpggt3dul.1n: w+vxlvx3:91z;tr.+ u+aduab gc ng:xwn; ptor is 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 ywe wkwj 6f:zn:y0of/+ x2v:g causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because jk:w2zgvwyfwn/o:y0 x6f:+ e

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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 witdv1x tnd c;:c.iz3f5eh LEDs. LED is the acr; vd1cd3ntcz xfe5i. :onym 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 graphite8p(oz9fla pyza r. dr2 0h5wc5 resistor has length 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 oldplf 089r aop z5dzra2hy w5(c. 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 IIkyy4ef. 8us m: 5 bayr 5n.oxg5x9zg-h has twice the diameter and twice the length of I. If I haogr.5f9 xny5h m-ya.xk:gu5y4se b z8s 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 and half tjnn2 2yo5mhn *g. j rf hn l1pj)ws*hq:759xxdhe length of wire X. If wire X has a2pg*d9hs nnjhnw)7 . 1q*5j2:orx yjhn mx5 lf 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 has length L and radius rt ad vtbq7 /7b0dnf)i +qih-a.. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mat77vt-a nh 0fdqbid+)t/ bq.aierial 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 Edison9tx f:vyf31c )ci5 trn wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orderfyv f)5rccxtit n931 : 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 hgja+s17/r* lva( k j/7 daekh,- acelmade of the same material. The length and radius of ea a r -edkcg7veh1 ahlj/7/ ka*(,jlas+ch 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 connected to a battery in tto4vtx5+,ek/e51it , vrnh fthe following way:h ,4kt nofe+xv ,5etiv/1trt5 “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 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 ci-b y t4k;epp fxx2vn,4a4nfb1rcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vo-n4 bafvt e kp;y44px,2bx n1fltmeter 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 showi09tbr xf 0zlu/ a73jmn to the right. The three bulbs 1, 2, and 3 - represented zrb/7u3fxa lm0it 0j9as 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 circq2td9x6 m; -vdz3sm fouit at the right. If the current in all three resistors is equal, which of the following statemenzo3t2dm6dx-v 9 qmf;sts 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 represen1-h vd n2isq:pts a simple electric circuit composed of 5 identical light bun-h2ivs :1pdq lbs 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 state8-cv jhjhida2-m ,2 dmer1qz .ments is NOT true concerning the simple circuit sho.228d 1-i jm adj,-ec qmhrvzhwn 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 anbe; d6w6wgvq+c r fv:0dY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit e0rgvdbw ;:6qe6+wcvf lements 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(* e,hqmtm ;ipa4sm-z will pass through the identified resistor in 5 seconds once the circuit p*hstme,;mmq ai 4z -( 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 following3 ysu, -n-qdbq.6/ yvf cm*u(y;xjozh simple circuit have the same resistance, which would dissipate the greatest p*c-s vh/un;q d,m3y-(6bu.xyjof q yzower?


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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 througi8y8rfz j /w6ah the 6.0 Ω resiryz8ja/f 68iw stor is 1.0 A. What is the 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. Suxrj,rm2o 5; t lv6pbq7nw;z5e ppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power.e5lx6j;nroqz r;b72, tp5vw m 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 conn- kl(qs;wf 8fkj9o9mvected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, al(9q s -kff8omkv9j; wnd 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 rated 1200 watts and 120 volts. Wha zvceu-)dg/ .y(-ssxkt is the maximum value of the currentscg . ys-duk ez-x)(/v 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 rfjq 9 mb86wqg; xr4a2wesistance of a 60 watt lightbulb designed to operate at 120 volts?xq4 mgrjwwq28;6fb9a

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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 dissipat6vfgp rjr:/r3urr ,5cx9l ch:ing 36 watts of/95c h: r:6rlf uc,prrgrx3jv 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 t5z*tft7x t emv9xcfb7/o h;y,o press clothes is marked "120 volt, 600 watt.” In normal use, the current in*tv7x7hxtec tf;/m,5bfo9y z 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 fo;r sa,homa0,fllowing resistances could NOT be produced by a circuit containing only three identical s a0 h,;fam,ro6Ω 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 res, n. yoio2t90vhlg nl(istors. Which of the following equivalent resi.t yl( ovo9i,lgn0nh2stances CANNOT 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 connected together in differq ega.c m.2)1+iu) d+k)bdptci .l cywent configurations. Iy)+q eb.pu atc)kd gw.c+) .i1l2cimdf all 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 rci1ivioy(0)-jpf i0;9q ou s, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected o ro -ii0(ysf;9icuv1q)jp 0iin 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, areppfri4-n 0v)ntl .e.e connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stf t-rv n0inppe4.)l .eatements 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 resist4zf f sep,wy,5ance of 12Ω when operating at 120ezf,5s,fyp4 w volts. What is the 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 rest896w+ky y:o2.z dkt tujb 4vlistor that is dissipating 36 watts of poweuy9lktzwtvo6.dkj b2t: 4 y 8+r?

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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 wu4mt flbs;8is 66zg6hhen connected to 120 volts. If the price of electricity 6s4 tgh6l6;fb8izsu mis $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 cosxlgz6+2hw os 7fh0 3l.)khrlrt to keep a 100W lightbulb lit continuoh0sgh zlhxl+k) f3orl762. r wusly 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 4glid2 3 7hlp1n.00 A through a lightbulb results in a power of 24.0i2l1gh3n 7dp l W associated 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 a family of six owns a computer rated at 500 wat(r 9prtyht)c7*kgng3 ts in a 120 V circuit. If all computers are plugged into a single circuit prp9g r3g*tn( )h7 ktycrotected 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 a simple c0qwuw )xd,8xck me :q.ircuit as shown to the righ)q8mc0qwkex.w u ,d: xt.
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 smd/i )b5gnwcs 6 gk-*jimple circuit as showncb-*/g) jg65sni kmdw 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 and tha(3xqcf c yo)/6 );g5,tfkiq 7qjgwznree resistors are connected as shk /zc6(gy3 o q;75qifw,n j)fgqtx ac)own. 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, a switch and three resistorrn p+a (rvqk5hr 883rds are connected as shown. With the switch open as shown in the diagram thea pd+n 53r(vrkqh 8rr8 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 switch and three resistw24;p3t i56kfwymvikip2q8 aors are connected as shown. With the switch open as shown in 23kq 4vfwt 82ikwyi pia 65pm;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 k5+d xtsy./-zt ocbk 8g5qnt- resistance? Assume that all wires are ideal, the battery has no kt xtoc5k sq5z+ yb-./8tg-ndinternal 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 thplxvhm.18c 6xywp riia;bx3dg023g) e circuit shown to the right with resistanceaip)38b x 1i3xwhdmvc2;g0.p gr l6xy s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica1amkbc3n 0gk 9l resistors connected in a combination series and parallel circuit to a voltage sourceb9ac03 mkgn k1.
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 identi pjn4fh/xwi470o39znn o:dm gcal resistors connected in a combination series and parallel circ4n4i/hxd70:j9mfnzp nw 3goo uit 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 idem b-4azk+n g)pntical. Which bulb will be the brightest g4)mzn pk-a+b?


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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, ney*wbsvsl2 o 7, tvr8n)z8m29ngp*a an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shoa8 2vsmorzs )n,n p en*7wl8 vg*2byt9wn 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, s 8s910 -qvn rf/mhu.y ecq5jfan ideal ammeter, a switch and three resistors are connected as shown. With the switch opefnq9 c q/sm1vs.f-y5h 0e8 jurn 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 amme8 hrxuo )7ej8dter, a switch and three resistors are connected as shown. With thex ojd)78u8 hre 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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