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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 electrq:v* c8qyu:1gl 4 (.ydc;padt xjq(wvic current exists in the metal resistor connected to the battery.q:wcg jav8( : ply;xt.u q*dv1q(dy 4c 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?


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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_________eaay( h9 z5 xvtx (j,c(n. vvm-cvs6bmz0ch resistor is tcxvczvt( (mh (5z,.bsjmy096 xvavn- he 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 fizlapp ,7q)kof2 n*v q,lament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. )qnp , o*avkfl, 7qp2zThis 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 lgjje6jv )cvshk4) z-. j/.zvwith LEDs. LED is the acronym 4vkg)vvscz/j -.)z he6ljj.j 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 0 fq1u8c l-n6ku8 uhflcross-sectional area A. It is to be pla8lufh8f0 l6-qukuc1nced 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 II v/n fleyng/ls oz1v 8r1uy999 has twice the diameter and twice the length of I. If I has resistance Ry1 9yn/9 fvng res/z18luvo9l, 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 materi t5toyk :b8a;ial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a re kti:t5 b8y;oasistance 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 ha8 fgt.o *f;ygps length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material ygpgtfo8;. f*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 make a brighter light bulb. He decides tt0 x:w c dtrc1d6k3jnr 4h+h7jo modify the nhd xthcrdk7jw4:t16c3 j +r0filament. How should the filament of 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 matdl w,8m* ispy-erial. The length and radius odwm*ys8l, - ipf 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 connected to a battery;cz*zzx; m5 (l c 0u5eyjdb3oy 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 toojz (d3em y;*c5c5y 0;bxluzz 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 tem otrtpz23f bh//k 35he accompanying 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 voltmeter rea3z/e 5bhmfptk3 r2/toding 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 a bmnb ,*y9pjhyy:0tz,ym+4 ccircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resismyb :z4 y9bmayjp,n,y*0 t+hctors 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. If the current in axtgqybra(kp82 2+xj 1 ll three resistors is equal, which of the following statements must bep1a(x8j k2rqx b+t2yg 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 : .j9wzyf6ofntq:9 1cmgn o ;ecomposed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul:f1;c y 9je6qf.nm: nt w9goozbs)
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 / stf:vtm37 e9cx 5tffstatements is NOT true concerning the simple circuit shown where resistors R1, R2 and Rf7t/xet mtf 9vf:53c s3 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 serie:)*kwfu8g6tv nq 0itts to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY ar:uwq)k*0 ntv68ft it ge 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 will8 a(l u(ph x3+nopw6hjh1c 4ot pass through the identified resistor in 5 seconds once the circuit was chah4u1 w(p+ tohj8lcn( x p3o6losed?


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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 inp- o2 v ypx)(fprt(de pee788 0o56vwad +kjxg the following simple circuit have the same resistance, which would dissipate the greatest powe06fxwopoet k+8dg ( ppyv(jr52p eave8xd 7)-r?


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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 circui:c24hdl7y zu i i8z0:0xv7woddh ct) rt diagram, the current through the 6.0 Ω resistor is 1.0 A. Wha0 8l wcz zvd7i24h dxo:yurdi:0th7c)t 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 l, /cvo 5c(uesbattery. Suppose R1 cvs5/ulco,ce( arries 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, rds.6xfsy7 x; R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, sx;r7sd 6.xfy and 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. What is the maximf7 62 bdizs(kig2mc*nnxh 1fg9hl:-zum value of the current under these conditio: gz-ds 79zxn2(mbfikch ilf*nh 1g26ns?

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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 reslx(jh. tl pc-7istance of a 60 watt lightbulb designed to operate at 120 7.xcj(lhp-tlvolts?

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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 throug/*b(skc-gga w h a 4 ohm resistor that is dissipating 36 watts of po-cbg sak/w*g( wer?

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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 cliv.fjq6 jz*:g nru:c1 othes is marked "120 volt, 600 watt.” In normal use,jzjvq6rfic: *u n.1 g: 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 cofw1cn t/4vnf7l;3juy/ 3ktsmuld NOT be produced by a circuit containing only three identi7n;y 1k3wvl4tj/3n/fu mcstfcal 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 three 1.0 Ω resistors. Which of the followg oc uh/jz91yr/a0, yping equivalent resistances CANNOT be produced using ,h1/gyzujacyr 09/o p 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 t xh/se,f r zhf/jktc(l6683e different values can be connected together in different configurations. If all three resistors are used in a circuit, h x/e f6zsfth6tl/kc3eh rj(8,ow 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 pyw 32w8u(4*ih)qs wmxn lvc0a battery, a total power P is dissipated in the circuit. How much total power is 823u0vw xs4lph yi*w m( qwn)cdissipated 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, are connec1(o 0h17xjcgd;umorbf d *pp:ted in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances isfdb7o u1 0hgpj:px ;(1o*crdm 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 resistance og5 i:cd1+zg nk,z xg*af 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kag+,id*:kzn1zc5 xg gg 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 thro m,bbnd 7,o8hxugh a 4 ohm resistor that is dissipating 36 watts ,,dob 8hmnx7 bof 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 when connected to 120 vq26 wxd(ohy n0 l8(hvs l(gip7olts. If the price of electricitpq w6(igd xn sl702(vyh oh(l8y 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 1003 f/kg;qn j+tprs y)2rW lightbulb lit continuously3)/t+ rrfgnkyq; ps2j 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 lighqblkr( h5.v2t)bp s;ftbulb results in a power of 24.0 W associated with5);v2qsb(rbh.k f tp l 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 compun5 z8z;q4fwsuter rated at 500 watts 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 operating at the samsq fznwu5z;8 4etime?

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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 r htkd qn49(z- ajmb6ut ,;7ywfour resistors to form a simple circuit as shown tonyd-m j7aztr,h4k u 9(bt6 w;q 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 (gn)ak 8ux;bn four resistors to form a simple circuit as shown to th)x;ga n(ukn 8be 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 idmqcyd /7inlud .6zo+h.r* 0u zeal ammeter, a switch and three resistors are connected as shown. With th6..l qzd m+z0 ydu7nc*hor/i ue 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 thre r)hwq df;n8ll*2xdf8e resistors are connected as shown. With the )ld x;d rnq2lfhf*88 wswitch 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 switch and t 13w6ub blg5n9 -5hxyg n,fjrehree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2 wxgn rb,lj gnbu5 -659eh1fy3.0 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, -lehtkw- k*.r t9a at8what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three - .ae -awtkt *kl9hr8tresistors 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 xmamj/+ -y.kq circuit shown to the right with resistamk qm.y-+x/ajnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectezk. w1 * 6rhb3uxgml*ud in a combination s .ukhglu31br* 6* mwzxeries 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 idinmn9g kbz.3i53nq)a 9mw:8sd0y8kpjaw f d.entical resistors connected in a combination series and par 893 nmswz 0gq.)af5anijb n9kd kipd y3wm.8:allel 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 bul..t 9+ysa oxrb6ur .+vc/ abgd*m1xalb will be the brightb*xsm .g+ub6ad.ry+atxar1c/ v.l o9est?


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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 +m( ixbcd1 r1d)e oko.resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere1er1odk+)mx( i. db cos.
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 amme6rah ; dl+* auv0fdsv/ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a0vdu;+6 ad/fashlrv *mmeter 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 *ln 59hur5njdu+lq: ok,+yzu switch and three resistors are connected as shown. With the switch,*ul+59 y+:q5ldj k zon huurn 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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