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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 e7qki +:a:mi yin the metal resistor connected to the battery. Which one of the following choices best describy:i+ :mkei7aq es 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 resistafsh -joy2lt*nnsi+2 m2 x.r6ors are connected in parallel, the_________each resistor is the so iy-t 2 sjla rn2f2h6.+xns*mame.

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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 wor)dc 7e w;18il+pjnl-l ra 0uire of a lightbulb causes the filament to become white hot, while the lalu17p r rla0 l8c+jw) oen;di-rger 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 pe3s(sc:.j xt; l fe *;,03l aaadubahcr ex*,lights are being replaced with LEDs. LED is the acronym for which one of the following choicalea,r,;l x *e*e 0 : 3h(3jc.cd;sfubasxtap es?

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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 cro trs-5j l t(aqay.g*w0ss-sectional area A. It is to be placed into a circuit, but it first slqja*w5t a0t(ry-g. 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 has twice theh;clfmh ;g( 5w d;fcmg;h5 w(lhiameter 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 same wuq, 2wgw ,uo(material but has twice the diameter and half the length of wire X. If wire X hw( w2wo, ,quguas 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 and r*cz d9 zm8t)ukfio l6nas13;aadius 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 materiatz6zla ;inm*u s1c k39fd8ao) l 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 /byj 9)f7ue /n(ivjnw a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in orwf i )7n unby/e(j/9vjder 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 sama;jy cwq741rz e material. The length and radi7r1yw4;qc azjus of 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 connectl h+8j b6ipic1zx(n0 led 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 foh8i6lcn 1+(0xj i zpblurth 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 ha9ajlr. j(ma6l s internal resistance 10.0 kW and the ammeter has in ja( lram.j6l9ternal 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. 0.d*mr3mnpasxf-j(.k1.g f tnkq ;js The three bulbs 1, 2, and 3 - represented as resistors in ther j dfmfx(-pnnam1.3.0 ktj.q s*g sk; 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 ely :bi*c;,-d+ 2*mz . lzght fxxijqyz-ectrical circuit at the right. If the current in all three resistors is equal, whiy-*x jf ,zmq;xz+.*b liyz -2gc:thdich 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 riqm48 i1xt yh6pght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bmpx1qi8 ht64yulbs)
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 trgi tpy fy 3b 530fy0.gu:-hp-a.h rpktue concerning the simple circuit shown where resistors R1, R2 and fh tgfpb huatk-3 0p:-5y.iyg p.r03yR3 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 seggwmm,)wu i(jotc-*d;xg,f nitpb g*5 q*h8: ries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements areg 8ixi**c pmj -d ttqhn(g: b,wf)mu;,*g5gow 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 3h* )-ow,itz acb;zgd will pass through the identified resistor in 5 seconds once the circui-)wgb*zozai3c h t ,d;t 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 circuit have f5/ qd qo2 vqbta+9,rqthe same redq5+o qr,2tbvf/q9a qsistance, 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 circuit diagram, the curren)+;qjl(wl jke t through the 6.0 Ω resistor is 1.0 A. What is the powj(j;le)+k wlqer 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 R4) 1cmrd -qsnk1(p eux1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3-)pux1 erm(sqn cd14k.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 connected p:faazt(w .f3 in parallel to a battery. Suppose R1 has 2V acrosw(.3:fap zftas 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 :+st)p qs +c kg:ekf9nis rated 1200 watts and 120 volts. What is the maximum va: 9s ntg+:)kq fp+sckelue 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 resistance of a 60 watt lightbulb designed to opp77th4tg ),po*vg 8masx 7dam erate at 120 vomg,87 p)voa*hmts4xat gp7d 7 lts?

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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 dissipating 36 wrvzf i3uj;qy;xqiad bg3m 9/l:2 wu7(p; ec*xatts of pow:wf xz rumvqd jiq liu ;c;3 eg;(/x*239pab7yer?

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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 "1(;,4t.; ohw(zt.pyqfytm0nr +qaheg 20 volt, 600 watt.” In normal use, the.(hzo4pmfy(wqqnr 0 + tt. ;thy,gae; 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 rerw /k7xx6am .zsistances could NOT be produced by a circuit containing only tx 6akz/ .rm7xwhree 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 givenoxeqj//kis lq 2* l5m)297bawnr,pgx three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT b/ olmr25*p,7eg) kin sxbw/qaj9 x2qle 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 bhp,05z ;vfc j:w)ww1v (unpdoe connected together in different configurations. If all three resistors are used in a circuit, how many dif) zwv15 cvdfho:pj,wpu;n0w( ferent 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 total power P i f ptvu,46;tsv 2zdxy)s dissipated in the circuit. How much total power is dissipatedfzvxtv46 s;y tpu2d), 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 x:q0 xe7pmez3-fcoy + a +-aibconnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following 3f pmeq +xc-ayoxze:+bi- 7a0statements 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 resistance of 12Ω svj /y k(h87 mpdpg9lpyj60 7q when operating at 120 volts. What is the minimum amount of 0/p d8lgyy j67mph qvpjsk(97time 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 throug qtsvi6e8+cq6h a 4 ohm resistor that is dissipating 36 watts of qqte 6 6s+icv8power?

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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 vo,jwozpi p 670ults. If the price oupi 7,j 6wz0pof 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 wom,1l)1gql*4wt: o lesun2 ubnuld it cost to keep a 100W lightbulb lit continuously for 1 year at a ranql e4nu1 :tl2usm,b gow)1*lte 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 pam:;+3br hlxbrfy 56:4mjqf a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resista5r6h fxy3+:p jr;4lbmmqf :bance 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 compu po)dxpv+ bi:+ter 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 sdv++p)ib xp:oametime?

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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 fourmhjozyg0 6/n+ resistors to form a simple circuit +yz6gn0 ohj/ mas shown 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 shk+b,8ho4w my0wz p6j imple circuit as shown to the rizo4m 8jh+w0 ,wybpk6 hght.
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 saf1flp e /zurt)8 y:w5witch and three resistors are connec: p1f/t8ua5zfrlw ey)ted as shown. 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 amme(i/ul3w45rq gs(hjyug+ 5fupter, a switch and three resistors are connected as shown. With the switch open as shu glu r34p yj/(5gwfh5+siu(qown 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 are connn385 2g./q 2vw f iq*chw(lhfp;e) cmblip,n pected as shown. With the swit nfp(ewc;*g8qblnih,3v w2.pil/2fc5 ph m )qch 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 resiz dt w3)x3luh9zxacux: 0r9j*q23qlb stance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ha3cx:9w 0lq2atzlu*x 9 d3h3b)rzqu xjve 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 with 4+1hu f6ywnp1-bkb kh resis+bufbyp1 h 6h1k 4-wkntances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combingkyl 5(uli1 ld uw) hwe h k*00gomqgg*3688mzation series and parallel circuit to a voltaguig*wkz0u * 0hk8wl (e86gmo h3dl)gq1ygl5m e 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 show28gx)vo7-w d 5q mpq k6njn+bws five identical resistors connected in a combination series and parallel circuit to a vobw 5d6v8mpn gkoj qw)- xq+7n2ltage 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 tbe(ku )fw ,rw )vir.: bulbs are identical. Which bulb will be the brightest).krve(:wui) rt,fbw?


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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, a+bxz,nbgy*. s; ku 1:e;s tcfsn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shs.c;tb; 1k +fbsz unyx,ge:s *own 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, a ;ms1svld.0 hr:rq c x7o, 4zu .6f *ecpnqgo-aswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter ;xl f1g qr s6,0src p.n4o7q:mzvuhaed o*-.c 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 switch and tr v)4fr1dwt/ uhree resistors are connected ast1/ )rw 4vrfud shown. 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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