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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 eeqlu xone3x7+(tg 79h xists 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 diro7exqn 3xgl h9+tu(e 7ection 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 connecteheh4lh/1 b5qct vt;g4d in parallel, the_________each resistor is the same.e h54h1/b ctgt4lqhv ;

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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*v0wj mo,,*-xluwx8g9 dxq v e causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hx, w gml*duq-o*9vw x,e0x8jvappens 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 wij (fc27l *l1)jndai/i5pso rl th LEDs. LED is the acronym for/ijo1fn)7* pl d 5c2rsllij(a 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 cross-sectionbr :r2lz8qbu 4al area A. It is to be placed into a circui24r 8qub zlr:bt, 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 has t yz 0jcgx.k -i-b,s3fjjmn6 i7ib2,s nwice the diameter and twice ik,xicgbn jij7 3,jbmsz. y6f sn-0-2the 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 twice the diameter a i6n1-:ip2 ofdn,npp:t +yzland half the length of wire X. If wire X has a resistance of R then wire Y would have a resis6z:lipiyao f p-,n1d2pnt:n +tance 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. This piece of matedaa:jii:sb/ :)*puj yrial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of t:up* asi:ji y:a /bjd)his 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 brighter light9.xce8rrqxh- bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make t crq.e9xh rx-8he 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 cylindri/t2 kv8lmm -:nbw9y; pjcqv6/oeh8d rcal resistors are made of the same material. The length and radius of eape c98;k 6m8on2dh-:t// rbj mwvvlyqch 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 cdcz a0w1lu) 8nonnected 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 au)l a wdz8n1c0 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 dijvn-f ojs u l;0-:za)qm h2:osagram has internal resistance 10.0 kW and the ammej s2oq-;fm0:v: -jhn)z salouter has internal 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 cv:ch9vepr39 xircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in tp3h9 r: 9vvcexhe 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 electric s vk5fn0lotqgij- 8du)4 b-;oal circuit at the right. If the current in all three resistors is equal, which of the followin5 qjb ;t8doil v-fk4ogu)ns0-g 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 elec -av -c:jrc4bq(irh*btric circuit composed of 5 identical light bulbs and 2 flashligr(qc4bh ab jc-r*:iv- ht 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 concerning the 9kf +v p1/oh(oss:amk simple circuit shown where resistors R1, R2 an(p/hksm + asoko91f:vd 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 andY are connected in series toz4t,avcs5. ve42a*7;tit iyiq ac9v x a battery. Bulb X is brighter than bulb Y. Assume all circuit elemea4tei t 9ivi* z2x7qac5svtv.4a;c,y nts 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/gk v)olj0t/y will pass through the identified resistor in 5 seconds once the cirjk og0v/tyl)/ cuit 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 311jhin,gue q following simple circuit have the same resistance, which woulihg1n3j1 qe u,d 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 current through the 6.0 Ω red3rr-:ylw 9p ksistor is 1.0 A. What is the power supply volta3k- wd9 rpyrl:ge 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 connec jjqhgw,a1ra:4y i2:bted in series 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 the : yh4 a1 2gw,ji:jbqarvoltage 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 ini bga9f ekux;w6hsi*q/qsn3- + d pse1p0:r,o parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is theq9nihqkg-10 *upxa/6 +:b 3o fie,r sdpsew;s 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 v9 a, i ndfjur:-p,dmkn9 f79anolts. What is the maximum value of the current under these cond-9 kf7 na,a rj9nnu:pfmd9,iditions?

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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 niktzi;thh ,bq+.i*a8uri 7-suw( o +designed to operate at 120 volt++,oztth(nhu ria- i .w7*k ub;sii 8qs?

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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 6c+ (zfm+di0red d e3kresistor that is dissipating 36 watts of poweri+kem +d cf(rz 36e0dd?

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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 "120 volt, 60h8ekwx7to6o5f+ct9 p yo,vi +0 watt.” In normal use, the current iy5+ei+vo fh8xctt6, k7oo 9pwn 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 could NOT be produced by vnh7ac xn +gsdf/u*0q w 7/fw8a circuit containing only three identical 6Ω resistoncswd+ fax0vf8ug*/w 77/qh nrs?

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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 eq *3ha/ tp h*qlm4xitr,uivalent resistances CANNOT be produced using alhr q*htxm4,p3 t/la*i l 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 resistool-j xp cetnp4fk/2y1c 80,acrs of different values can be connected together in different configurations. If all tca/1e2 c tp8cxlj,4- nopf0kyhree 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 batte i/- 5dva2 e4yeak1hfsry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connecte4svh1i kfae- d/e52ayd 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 uv3:. 3gu)gf+uythft and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements ab+3.hut3)ut guf v fy:gout 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 a4v,l+3 t2zz)z y ai8m*l uysqsuch that it has a resistance of 12Ω when operating at 120 voq yzl4m*ays) 8 tlv2+3uazz,ilts. 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 oht yfl. 7 jzyutpt3;7+pm resistor that is dissipating 36 watts of pt7+tjyy.uzf7 tl3p; 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 heatd;btnr nrz,*0t4d xm8- (p5 zva+rv naer draws 13 amperes of current when connected to 120 volts. If the price of electricitpza*z+,n(t 4rvnr- db r5nmxv t;a8d0y 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 woulhm 0qmilt+e, 1d it cost to keep a 100W lightbulb lit continuou,he+m ml1t0iqsly 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 lightbulb results in a power of 25ygayspzm v honm1cl4,+azt ) n ;0x.+4.0 W associated with the bulb. Which one of the following choices best represtnvngcoyz 5l, 1zxp++0h.y as;m4 )aments 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 j/vwtyb((- lrl, jj1qof six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circu(y 1tll j jq(,/wv-bjrit 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 four resistors to form a simple cdc6j :oc01y*konu w;7 uvop(eircuit as s kdevony7uw0c u*;6 :(ocop 1jhown 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 wh5ng cwj) k t5:mi43)qr9 bliform a simple circuit as shown to the right)gn49 55 iq):kb3 wir jhmcwlt.
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,kze(qilk7uvi0.4l n+ a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammezii0uq lke( .kl+74nv ter 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 idea*cd3nwdre 2 (cl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampern(*ew2 ddcr3c es.
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 rem7 (wx-fl (ajysistors are connected as shown. With the switch open as shown in the diagram the ammymjxf( (w-7a leter 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 sh-hjh 4 sivfglhs/r0(--qwhy4own to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance0i 4-yfsj/h-lgsh h-h(r4 qvw 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 resisnngaul y)e): 9tance of the circuit shown to the right with resistance:9gluen yan)) 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 identical resistors connectedc * k,wvm4ch 3ykqrb;9 in a combination series and parallel circuit to a voltw,;qm *bkrk93vyc4ch age 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 resistoov; 0dzr -yi4)4cena dppvx )78,ncnbrs connected in a combination series and po rip-ycdz a,v)xn)v74p8b4 cnne0;darallel 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/ccvspi ;nrv*p98bj1b will be the brightest? 9 p/vr18civ*pn;s jbc


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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 battery9( 3btwr*s ei5j.p+huf lqmm ., an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a5hmel qu.+39 ftpwr(i*.m b sjmperes.
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 switch and thre 4,n6j usci2gc qquf9wc d8;o4e resistors are connected as shown. With the switch open as shown in the diagram the ammeter rs2i 4u o,4wd j;9gfuc6q8qccneads 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 three resistors are cof1zen6+v)h fbnnected as shown. With the switch open as shown in the diagfe+1v) fnz6bhram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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