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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 electro h m4 7(0ihbqt8sklezat-0t5p h-uh4ic current exists in the metal resistor connected to the battery. Which ob(0hslz k 45th0 i h8e47othpq-tm-uane 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 connechsasu8 t;ag. ,fn.mp6ted in parallel, the_________each resistor is the same.msu6a8 gs.f pnh,a ;t.

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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 3hk 8ud.g k0rea lightbulb causes the filament to become white hot, while the gd.ukhk03 r8e 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 with LEDs. L)mr1candrmz y x+kc8)k+ 2 -aue8*svtED is the acronym for which arke) v ck8nyz2c-um81at +xrmd)*+ sone 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 graphitoml(b f4b.g 9ig0t5tm e 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 t.(bm tm fgo0 il5g94bthat 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 mat*s0 j0ad4wtmp erial. Wire II has twice the diameter and md pa 40j*swt0twice 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 same material but has tw,jzmsrqy89 cl+ /mbp 49izp1m ice the diameter and half theimqp9m8z y1rsp 9/ lmcjbz4+, length of wire X. If wire X has a 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 as4c tq: b;t4 onz:lww7nd radius r. This piece of material is then drawn so that it is a cylinder with new length 2Lcw o47;tl: znt4bs: qw. 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 make a b; )zud0y4ufibrighter light bulb. He decides to modify the filament. How should thu0)y idu;fb4z e 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 thety,46;/ 8ed l/ifnmsb z l)d4d8vxt rf same material. The length and radius of;8m/rlfsd8i y,dd nv/4z bl f6t x4t)e 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 resisy-:;keri vf n+ew. /twtance R, are connected to a battery in the following way: “Two resistors are connected in t. fw+ye-/ iwv;k: rneseries. 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 circuit diagram has interna7p4p6zt.6ialwhj 4v vl resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading a4jtlp7p.64ih vzv 6w 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 se/hmg i7(jm+ right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramm(+jg i/sh7 em
- 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. 8l 2lw,hl f(ciIf the current in all three resistors is equil2 h(wc l8,flal, 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 r-j ptwh :p9o ,+)devk3l d2akdepresents a simple electric circuit composed of 5 identicek 2pd:)-dodp3t al9jw ,k+vhal light bulbs 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 statements is NOT true concerninf(l8. xronoxb kgvkqu)cs m ).wyk,)b(18g* l g the simple circuit shown where resistors R1, R2 and R3 are have equal resistance so( f8.gkbkx8)q )n . ,ylvb1)g( xcm*okulrws?


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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 battery. B3h4 ielui(z y;ml, -c2arg8p sulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same batt8-a l lph34gey2iz,c uim;(rsery, 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 res 0.gra ;6hwwuwk4 5sqj/k**xvy ka ul8istor in 5 seconds once the circuit was ckua5*vq yg48ww0 hu6rws kkx./j;*allosed?


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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 simprij,9 6 vhq)ll-6nhb55uzf o4,pv xry le circuit have the sam,xyhj v6z95 6lq,)h-r5op4 ifn luvbre resistance, which would dissipate 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 circ69 reaydbk q w-d8*lf*sig,j6uit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power sudjbiadg,9w -yef* kql*s 66r8pply 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 serir 8u9ihgina71 5 n9,xeow,5hb5 f iunees to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is t5i5 bahg on8in5u7e19r,,u9wxn e hfi he 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 connected in parallel 3aoi3, - e* sunt my ckhz+p2zt(yek6;to a battery. Suppose R1 +umeozia-,y n t(t c36 2;h3ksezp*y khas 2V across it, R2 = 4Ω, 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 watt,+ls7gymh+cn x0 +ygm s and 120 volts. What is the maximum value of the current under these g+ x,+0glmyhnc7 sm+y 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 oqlgel;z:- cyamr h . 4,j ,r(fim.rp5v;qfzy(f a 60 watt lightbulb designed to operate at 120 volts?rl e( yqc5 f ;f,.zjavygr-irl.m,;qp(4h: zm

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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 oy .5yg( u5wasjb6y+giv0 -mbflows through a 4 ohm resistor that is dissipating 36 watts of power( iwby y+55 jv 0.m6-oyubggas?

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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 tz; 3l0lpfs2lpo press clothes is marked "120 volt, 600 watt.” In normal use,lz;lf3 0lpp2s 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 followingki /)0nln2u2p:jxtm v resistances could NOT be produced by a circuit conlpnx2/jkiu02tv n:m) taining 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 three 1.0 Ω resistors. Which of the following equivalent9licpdvp 1 ,1j0w+ 9xl5zq mbx resistances CANNOT be produced uspl5lc1x1zp+ md 0ijb9w9,v xqing 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 hm)jwk mh/ .da yf..fg,4.7x1 ow9togy;x zby together in different configurations. If all three resistors are used in a circuit, how many different values of total rxfhdx)b,9 a z1omht.ogyy4fw gk; ..jw my.7/esistance 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 connect y4xns(cy9(keed to a battery, a total power P is dissipated in the circuit. How much total power is dissipated inc(ynyx 4sk 9e( 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 connected i9aqko 8z io*7 u69xjxtn parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abouao ixu 87x9kzt9jqo6*t 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 thz:zyc a pdm lj7y1b*)4at it has a resistance of 12Ω when operating at 120 volts. What is the minimum amobpyz4dmz l1y:cj*a7)unt 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 o1y2 maa:tm 2gehm resistor that is dissipating 36 waty a e:221atgmmts of 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 connetg*p2 ltc9+duwd,m :k cted to 120 voltstwput,kd:2m c +l9g *d. If the 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 how much would owt703 lpsv,uer 9ja* it cost to keep a 100W lightbulb lit continuously fos7wj*r0, veu po 3ta9lr 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 results in a u3c,jyi/vxy; 5*axsu power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistuyxjs yvu,cx;3 i5a/ *ance 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 wa5njbk ab27 3kotts in a 120 V circuit. If all computers are plugn3k5k ajb7b o2ged 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 j7a2ss d:ecvm 7r8; ryfour resistors to form a simple circuit as shown to the rir2sa;v :erc77ms yj d8ght.
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 circir;h24pb pye 4uit as shown t eh4;p i2py4rbo 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 eh78aidm e9,gm.p27. tudbgoand three resistors are connected as shown. With the switch open as shown in the diagram the op,h idt uee8. d92b7ggam7m .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 ammhk3tic zm3k+ .eter, a switch and three resistors are connected as shown. With the switch openkcz+hit.33 m k 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 three resistors ade /dmx2u/*zc re connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. d u *x2dz//ecm
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 rm/nv1 8cstn : hhv dv(qkrrd18e0w/. gesistance? Assume that all wires are ideal, the battery has no internal resistance, wvr mcd(8 h /nhv .ev g8d/0trsq:1kn1and 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 ri+ dt h-lw-vod1j1qvb :ght with resistances +1ld1dh-twbv ovj-:q$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combin8 rmmkx:r 7z5mf( pv/ky4yw, lation series and parallel circuit tykz(frw :75,rpxmk4ly /mmv 8o 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 identical resistors connected in a combin1d xi.9b u/rob+ xog8eation seriesoer9uobx1/+i xb g.8d 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, albn+:3in(u:clmqpcalh ;ab3 3l of the bulbs are identical. Which bulb will aa; 33:+ lbunq3cbc:mnli h(p 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 batterj 8;7a99p edj; fnnqhyxgigjb8: v 0m4y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch o xqmen9vghyfgjj:p ;n9; ad4b8 i 87j0pen 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,j3; 0rvjm/ id2uy(*lyfi.d 4r 4zehiq a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter /(hludii 3zri2 v f. jy4rq*;d0m4eyjreads 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 iw3 stbsrgw1 itre 5v7u/n b):+deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2tv1s5wwb:/+t73 in serb )urg.0 amperes.
When the switch is closed, what would be the current in the circuit?


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