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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 in the metal r:1y(6 cso5 v(+aopz2 avskciwesistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field thr o1c+zpv wovkia :25(c(6sysa ough 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 para+ p r.rqofuz:;llel, the_________each resistor ip:;+ urrzqf .os the 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 filament wire of a lightbulb causes the fila 5b gj/ v5hh9h /blz4-dxuiau;ment to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thb-gud59a hhb /ux;iv54 ljzh/ is 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. LEDiz8-e8d . -tx rbxb;ts is the acronym for which one of the following cbs.e-x-88bztid r; xthoices?

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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 lengwkus5 xz.r*2 bth L and cross-sectional area A. It is to be placed into a circuit,z5. *b2wuxrsk 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. Wipyp0e(+b-jv cre II has twice the diameter and twice the length pepcjb( v+y-0 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 s s68sr71tl zqiame material 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 res7rzsi 1 86ltsqistance 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 materi v zd95 :ve.ked0w2nka0qiu0ial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this p0uk:9 iieevd k.wd2vqa 0 z50nrocess?

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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 ligufr )f l7d; rwli0am80xyn,k/ ht bulb. He decides to modify the filament. How should the fil80,li0un;ywak f7m )lr rxd f/ament 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 cylindricaui3ppwcmlg1.:e g:3g/ xe6l* b kn1krl resistors are made of the same material. The length and radius of each 1ib ng llpx* kg1um/:p:3ewg3.rck6 eresistor 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 b:v6d -uzy5 o7: ruyfoin 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 resistorsouu:-ydvzr 5:yof6b7 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 diagra7e *-3+uhzniwig t7lkuuv 9i, m has internal resistance 10.0 kW a9glu3v+u w iu7n*7t e-ki, hiznd the ammeter 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 circuit shown to thhn7 ,ydh0 w4+n+ske uyw6 iic3e right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramhsy i n+c,dui70364+yneh wkw
- 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 ou a:xw72qew1 the current in all three resistors is equal, which of thwwa 1:qo2x eu7e 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 g-- xgidza1fs.ctzq/ :) aq:f identical light bulbs and 2 flashlight cells. Which z-:x) iagz/ :ff- aq1gdt.csqbulb (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 statementsmpz cs9q/ iw0nt4p+ i5 is NOT true concerning the simple circuit shown whepq/ 5+p0st iznwc 4mi9re resistors R1, R2 and 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 andY8;(cj 1nh/xi on (ooqkhq. u)o are connected in series to a battery. Bulb 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 battery, which one of the following choiceoouhk.(x/q)j1coq8 i;( nhn o s 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 resisk2ujih5667 8z4cl xl nqxj g4stor in 5 seconds once the circuit wal64u5ijxn 2 q s48k6lxhjz7cgs 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 fo tby5t 92cwuy51l(giy (,koo50j olpmllowing simple circuit have the same resistance, which would dissipate the greateyj olc to5klp yg51tu590m,bo(2iy( w st 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 thrj zdo,( x2ea*mw87yewough the 6.0 Ω resistor is 1.0 A. What is the power supply voltza7wwxede,m (o2j* 8y age 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 0uo d kn-dba+)o5n7q co) 8kjeR3 are connected in series to a battery. Suppose R1 carries a euco od)0 qkbd5 n o8jna7+k-)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, R2 andR3 are connected in +hne 8;9aaxrl parallel to a battele x an+a8r9;hry. Suppose 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 vo wu58qwp) mnk fc11w :qv3-ughlts. What is the maximum value of the current under these conditio8f5kqm1vc3wqu)wp1 n- :wghu ns?

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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 6 2o 3g3 m/k ws+on(jtf3e)f(oypn1ch c0 watt lightbulb designed to operate at 120 volts?s f(efh3/pk+3 1twjoy 2c3c noong()m

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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 dissip8g2. ac(bb* 1zld qg,mk/z bg *kg2vrnating 36 watts of( *g cbg/28 ,g2nzbkv blkmq*azgrd.1 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 cls5-5t1 b0nx 9f tcdi 1b;xafqoothes is marked "120 volt, 600 watt.” In normal use, the cuqfd50 5basif1x -bc19 tx o;ntrrent 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 could NOT be produced 5b6gk5us /7ltp .vufj by a circuit conl6u p.u 7j t/k5bvs5fgtaining 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 resistorsn6bn 2yhn.kj ;. Which of the following equivalent resistances CANNOT be producehj;b nn6n. ky2d 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 resisto8g-k*i d hb6pwo euoa x3l(9v,rs of different values can be connected together in different configurations. If all three resistors are used in a circip(b 89o dkle ahvx wu36g-,o*uit, 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 battec y k+c-w(u2m:dpmxd9m 6x b6kry, a total power P is dissipated in the circuit. How much total power isk9dk:wcy 6( m6d pxxumm2-+cb dissipated 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, havbqa:e4hl/,x7q4ly tuing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follo u7 qlt4eb/qal ,4yx:hwing statements 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 n s7jhbd *h//3 -ebllga resistance of 12Ω when operating h/n jhg ds3/7lb-leb*at 120 volts. 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 ohm resistor that is dissipatinb 0:/ e1ccku3cqrrmf :g 36 watts u:ccbq1 : 0/fek r3mrcof 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 h(qqn k :c6b,s 4awdwj*eater draws 13 amperes of current when connected to 120 volts. If the price of electricity is a q , 4cs(dbnj6k*:wqw$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 keepf)y 9pmy2dk )(s7wc6lfc k(qug cwan63 ba p69 a 100W lightbulb lit continuously) 3s 2fwu(f )a6pcq( ng cdla69c wpmkbk9y76y 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 li5dmx5dsy ijk; v gip ,vms ;*e7n3ddi73 i;(jpghtbulb results in a power of 24.0 W associated with the bulb. Which one of the follo5d ei3dmijm ;ix d(p3g7 i, j;ny57s;vvkdsp* wing 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 rated at 500 watts in a 12h ufcp:x6m ,hrra* y6h 78puj:0 V circuit. If all86rppr fh m:,hc7xu6a*h yu:j 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 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 batterw+ro)biqa: e3y is connected to four resistors to form a simple circuit as shoar)iwb+ qe3:own 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 resistorsma/m3 by92x7 rrb s1p b /rszl3sp(bu) to form a simple circuit as shown to the right.1 /mm)pl(rszrb bx7ub3bypsa2 3sr9/
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 three y2 hmii6toc+ +z 9,y(lbju:s8, rv(zyp;v kqjresistors are conn9 q;zk+lvb6( :z ptri,u+j ysymjv(cih28y, oected 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 ammeter, a switch and three resisvzci(p p mk52*2pn-cs tors are connected as shown. With the switch open as shown in the dia*p m p2(-n5zccp2iskv gram 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 gc)eloz /kk74 connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.o/74lc ke g)zk
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 equivalxg. d4kk2r,unent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistoxk.rng 4 ,2dukrs 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 sh iu)gz)f:x ;dt)/moyyown to the right with resistance) ;)x gyod) m:i/uyztfs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica4 qkc2of-6jmu9t6 wae3 sev0 a7oyu7dl resistors connected in a combination series and parallel circuit to 9mqo7av7u2 w dco sk-f jy03e ua6e46ta 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 showvj7kkc - h;*cf)zem )ey*s(eds five identical resistors connected in a combination serj)yk( mc* dfkvh )7se;cz-e*eies 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 diagrp tn37kbmk.:p am, all of the bulbs are identical. Which bulb will be the brightesk7 ktmpbp3.:n t?


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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 6;f tpu.l. iren0t 6kkresistors are connected as shown. With the switch open as shown in the diagram the ammetein k p.uk; 6lr.6tte0fr 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 switch and three resistors axc 2d),*;nuq :hz bxi6 (wkfxkre connected as shown. With the switch open as shown in thw 2 6)i,x*qhndbfxx;z :(ukcke 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 idev)t .4igv n)o0ag iz.o.0skzyal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeteot.av y4gi.)i) 0 .g0noskzvz r reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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