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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 s tzrv( x/-.qoqr;k1.bg5s a bihown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of e.q b5rqitkg;zr/ ob.v xa (s-1lectron 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 cobr- lai aa226yf6kd8 ennected in parallel, the_________each resistor is the sa-erf2 al6 8 ya2ikba6dme.

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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 :t2 pp/-w/ 6o)ab 0zodkf1q(xw l gdqwthe thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens b0odw2g:t xz)6fqlqb 1k / d/aw-(popw ecause

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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 LEb -a9 rl;hb0csDs. LED is the acronym for which one o;alc0 9rb hs-bf 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 cylindricalv lo:s8:jhz :qq2)z)h rdhf005s bixe graphite 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 old resistivi i2:qx)lr jf 5: s8:vbqd hh0ezo0shz)ty 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 mh u)v3u8uxe+ daterial. Wire II has twice the diameter u3h+dux u8v) eand 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 material but has twibm s pu4amkp +6y/yz:0ce the diameter and half the length of wire X. If wire X has a resistance of R then pa0s4m:/+b6m zu ypky 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 r hapdfh5g ,bm jbjnr19e*7r: 5. 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 because 9a,hh reg mdr5 :pjbj* 57f1nbof 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 make3 *yo kk0n(z4mewm 9nu a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to mauo*ne zm49w3ym0( knkke 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, uzq24 yjslqiw+ raoa)rd *++ are made of the same material. The length and radiuqo +u li2jw+,s +*r4)d azaqyrs 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 coxvy (;w+n1qxjpt4f* q nnected to a battery in the following way: “Two resistors are connected in series. This cox*+v4 ;fptx q1q wj(ynmbination 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 in4q8f gi-guowd.hi6 bh pu9o;8 the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter re8b -qo8h94 i wpi;hdu ofg.ug6ading 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 compou c/ r0dyg7 blj+ev4le;nd circuit shown to the right. The three bulbs 1, 2, and 3 - rep0yr;7+dcbj/vg le4leresented as 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 circuit at the rivb qun0u7 -9qhght. If the current in all three resistors - 79uq0v hqnbuis 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 electric circuit composed of 5 +-vuny sfj:a go 4u 0r/l5s,rgidentical light bulu+ ,/5sg40ragvo rnu -sjf:ylbs 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 fw+vcg .3,or akollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a+. cvk,3wor gare 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 series to a battery. Bulb X isf7;l0 bf .fkpy brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in f 7ff0pkyl.b; 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 thf0 hc)r.fihu7rough the identified resistor in 5 seconds once the circuit wah)h ui.rf7cf0 s 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 resis5. vpdflmsqbs8 /*+ v1i x)oxitors in the following simple circuit have the same resistance, which would dissipate the grea+lismf xp.8x 1b/* vsi d5vq)otest 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 thro (-b/dtq*agkfugh the 6.0 Ω resistor i* b -kqdg(a/fts 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 .nm *s+jc *zannfr(w0R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 Asz.jcmnwn* 0a*n+ r( f, 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 connected in parallel tqm t fo.g1*ah1o a battery. Suppoqog*11.am f htse R1 has 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 watts and 120 volts. What is the maxv rs 2y9na9l *op1r,r/(ee tpkimum valuer*(2larn /p y 1so,99vretkep 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 lightbulb9hq. gj xq w-dk7jpsz1 chq58, designed to operate at 120 volts.sdh , h-qxw57j qk9z 1gqp8jc?

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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 thatd-vsrxpz, *.d+jtbl 6 is dissipating 36 watts j6 b+pd .r*xlt,sdz-v of 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 to press clothes is marked (2lv 1hf nc+)frsyhv lbf;4w/"120 volt, 600 watt.” In normal use, the crs/l cv; v+hb1ff(n2hyl4wf ) urrent 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 rv e9ysb4cb:z6esistances could NOT be produced by a circuit containing o:6 4ybeszc9vb nly 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 thregauu1q4ib;(too 0 0 cqe 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistootqog;u i(u c4b a0q01rs?

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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 difoburl1 hp+*xac8m6 g8, qej /sferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many diffec 8l u/jhp 81m,*+6rexgaosbqrent 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 totalb8c tn:.za:hp power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the c::ta.phbnz 8 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, /s 71.kxsrkypw,pba.gyj /mm 5zf, x +having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resiswfsk + 7k 5pz,r .1pg/ msb/xajxyy.,mtances 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 when oper;1yiu/krc9*3 fktndk p1vih 9ating at 120 volts. What is the minimum amount of time that it would take to warm 0.u p / nh*rf131k c;9ki9tidykv45 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 currz 1jrnyieg;-;s ax th/+ 5dtl;ent flows through a 4 ohm resistor that is dissipating 36 watts of powaz+ get/hd ;l1yr;;-stn i5jxer?

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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 whezy61*irv fzpo)/kp 9 en connected to 120 volts. If6o*ezz)ivp1fk /y r9p 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 it cost to keep a 100W ligd ae5cbm ngya p ;s530i467qshhtbulb lit continuously for 1 year at a rate7 5ypi3dhacn0qs ;6b5a4e gsm 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 ;yx e*hhb3 bpl26ip7l a power of 24.0 W associated with the bulb. *2yxl76 ih;h3 pbp lbeWhich 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 robft3reou;wy: i3icc pg (,7)bmjh1 ; ated 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 sam,)3r po m7hy(1c ijfwb;ecgit 3u:;ob etime?

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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 fl+,y,m-zgn 4 koukld8uov .z1:al3s to form a simple circuit as shown to the,v 8ol fo:3y muk,lznsu.- d4a +zk1gl 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, .qbs. +lvjx 4x7ekyv is connected to four resistors to form a simple circuit as shown to the right.v xbl, ekjx+s4 v..y7q
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 threa-.e3dk ksomizmw mj9,;.oi4tel0 4t e resistors are connected as shown. With the switch open k0m4 ;9.a ze4t-ekmwo o stmi3l,.idjas 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 batt p,x+ohrxp1m bptw *y,.+kg4zery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sh+ro ht1,w.gx px*mpz 4b yp,+kown 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, qel4q,a 74uy/1oiszs an ideal ammeter, a switch and three resistors are connected as shown. With47sqe z4 i lso,1uqya/ 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 mg,b*8v* fmr7ukfu u2 is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ha7v8mkf2 , um*ru ufg*bve 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 r :deum 34:da(n/i; fd3rbwmn gesistance of the circuit shown to the right with resistama g/f(dw 3um 4ddr;ni3:neb: nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combina u9(b ; p2ve.1btfqbsrtion sesbr.eqf1b;t p(2 vbu9ries 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 belo(;c9m:s d,ng3iic2l w d*yes yw shows five identical resistors connected in a combination series and parallel circuit to a volty:3ydce gscmi*, 9s in;wl d2(age 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 bz3vz9e k9*mj 9r9ww)p zzro. mulb m) o9z3z9w9.zkjr*rmwpze9 vwill 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 battery, an ideal ammeter, a switch and three resistors hvu;k85fqh,ob3 f7 q p3futv5 are connected as shown. With thhuuvtf;5h3 qv3o8bff,pk75 q e 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 am1.k 0u*: dkiox wjjm.wmeter, a switch and three resistors are connectek.owj1i:m*xjk.w 0ud d as shown. 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 ideal ammeter, ;z ta+lz x1/(hmy;lqb a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amplzmt;z aqxh ;lb (/1y+eres.
When the switch is closed, what would be the current in the circuit?


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