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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 uc:ar2) h 7b d31*dinbst qii1the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through ) si d2h:q* 7crtia1id3ubnb1the 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 pqn5 dg.+n/f : )rxhw k;nm,pxconnected in parallel, the_________each resistor is ): f5nxq+pn,ngxmd k h;/w.rpthe 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 ofv+/kw 2-b ezqn n+2pyt a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulbvbey+wq nt/ +kn-2zp 2 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.rsp*i.7 h2k jy ;i9upk LED is the acronym for which one of the following choi9i jy*7i;ps.khurp k 2ces?

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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-section b5 2zrr7gmfgopq8. y(al 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 thgm7bp5fyr28.( g oqz re 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 tkrqqz 8 2o(xf7he same material. Wire II has twice the diametefxr7( oz k28qqr 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 material but has : i2 jti2a9wma4(w2+h wh jwfttwice the diameter and half the length of wire X. If wire X has a resistance of R then wiriw2m2httww(j i+2:waa j f49he 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)j * oghaou5df1mpbta), 5.c cpz2fgveh+)f . length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to tghh ev1 ua2fo5z )+p)5pgco. d,.ft)b cj*amfhe 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 brighter/m;obh1 bt q(z)xdu t3tz,f*e light bulb. He decides to modizd)e,mu 1(qfb ;t*h t xzo3t/bfy the filament. How should the 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*9huiq (v m;hm are made of the same material. The length and radius of each resih(*u; mmh9ivqstor 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 resistoriaa*u6oebn e,z7 4)t4whekl/ s, each of resistance R, are connected 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 r 6h*7b, ee4 4waetza)k li/ounesistors 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 .l kgbbdjv0an pi 8r+ic2,8;qh*e/ifcircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. i8jni/.l0 g c arv,eh2;pi+dqk bfb8* 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 gcgqf7+962e a + gjln/ taxr2rright. The three bulbs 1, 2, and 3 -e22rfxjag+t/9g n l ar7q+cg6 represented 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 tfv 9bpzf uf-8(he right. If the current in all three resistors is equal, which of the following sta98z -bupff v(ftements 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 ip56 k4ck:h zhbdentical light bulbs and 2 flashlight cells. Which bu5hk p 6zckh:4blb (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 concerninu/2svs2/wuv i g the simple circuit shown where resistor22 s/vsuuw vi/s 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 andY o,b2gvfyf 8lk 12tt3 gare 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 ffggk,8ty21t2v l3bowith 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 through the identified re f :awgm6 i;i)a)nhhv)ek+fr- sistor in 5 seconds once the circuit was closed:)kaf iav)gwh6hme;)rn+ - if ?


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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 0yu8skcy q,8 per 2*lc the following simple circuit have the same resistance, which would dissipate the gky 2scy8 ,0pue*q8 clrreatest 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 cir voe)4) sb5 g.pslcezbh 47c+fcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What ie7shsbo .fce +5 b4pz4 )lcg)vs 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 R3 are connected in series to a batte h elk5,yayz6.+.g+avb+wzxtc 5i8dary. 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 i5 6y .zbyiwt +5++xegd8a,v.zlkaachs 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 res fu)6jb 6 4in+ku9 i5n8zndsqhistors R1, R2 andR3 are connected in parallel to a batteryz9un8 +fjhsb5k6 u)nq6 ndii4 . 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 volts. What is 5g;niatg(uje ljqv *htl8 s.)po* / t0the maximum val /ti; u8ol(shptl )a *gtge.5jn0qv*jue 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 designf vlf.)ha7d:eed to operate at 120 voaf)lv7dh e.f :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 floww (qxay.px00n o jvh* 2z6fdk+s through a 4 ohm resistor that is dissipating 36 watt( j2 6+xh yqfvx0 *dwzao0.npks 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 "120 jeu9* f55o osyxrj:l/volt, 600 watt.” In norm5jfxojre syl:*u5/o9 al use, 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 following resistafe*jj:dd)n;z nces could NOT be produced by a circuit containing only three identicaj:f ;z)jdn de*l 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 pi6mu:z ;lne5 o(skj:i 0c+od Ω resistors. Which of the following equivalent resistances CANNOT be prod udzi c :(ioem:p05jkonls +6;uced 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 be connected together in diffoqyb6nh1svqm(1 8 j( oerent configurations. If all three resistors are used in a circuit, how many different values of total resista(qbs6h(8oqjy 1n1m ovnce 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 be*(xegaqp+2q attery, a total 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 internal resistance of the battery is zpe*+ x(eqg2aqero.

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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 R18cx-e 3/sqfgoy e6jb1 and R2, are connected in parallel, the equivalent resistance of the xj/y8go6 eb1 3-qscefcombination is 5Ω . Which of the following 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 ays0/oied3c6vf nl 6tq7 nn/ 6f resistance of 12Ω when operating at 120 vov l ond6 /7c60 6qsff3yein/tnlts. 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 throug vv4xlr5/bz9 gc0,gkhicf 4*l h a 4 ohm resistor that is dissipating 36 watts ofghc* cgb5 0zxlkr 9lfv4v4i,/ 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 dr)k 4j4k6im hy0f:bykuaws 13 amperes of current when connected to 120 volts. If ti4 kb0m:yj4 k6hk) yfuhe 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 mvq*57z -n75n i slnelto keep a 100W lightbulb lit continuously for 1 year at aeln 7lqv7 ni5mz-n5*s 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 ink0rrgrbnwz2m5/ l 21/t11hop x u4bl k a power of 24.0 W associatepr5mto1z ll/x1r2hn2 kbb0/4gu r1 wkd with the bulb. Which 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 rated at 500 /,pqs em6 me5nni5w8wwatts in a 120 V circuit. If all computers are plugged pw5se8mq n 6w/in 5me,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 cd 8i71;mt9vt:0)d pzt us5trz(k oyzconnected to four resistors to form a simple circuit as shzprtz9 u(z ;tviyd8ctkt5md1:os7 )0own 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 wq4h 1vqby(t68 pvi1ehrgl40d1uc p- form a simple circuit as shown t e4qyq8v41gwlr( 1cp6td-hib01 vhup o 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 and three resk .za87yhm2q v r mmjc70em*)wistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2..m7 0 r)z acwe87hmkqvm2y jm*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, aw qd c:j,w93 by6h4alwa qq+,7 0ekapt switch and three resistors are connect+ qjeadwtl6 wy379cwq 4ha0,qkp ab ,:ed 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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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 g pb-y* f;-fplresistors are connected as shown. With the switch open as shown in the diagram th*l-f;gppfby -e 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 s nrh9y+i4vur: hown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thu v:nr 94hiry+ree 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 right wisyy+8ba 1/rd pth resisas18 r+bpdy /ytances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s(ph zd+7 ys r.w)hjp-vhows five identical resistors connected in a combination series and paralldpypvw)- 7 rjs.z(h+h el 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 below shows five identical resistors connected i a.u38gs4mpdx n a combination series and admx s4pug8.3parallel 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;*i/mw4 8fulshxjb:+cfg 0 hw identical. Which bulb will buix:jw4s*wg flmh bhc +;8/0fe 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 ame7 j23 3uhncfameter, a switch and three resistors are connected as shown. With the switch open as shown in the dic72 je ahf3n3uagram 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 switch and three rk0 ;yur6 2vdlqesistors are connec;y du26r0qlkvted 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 ammett s-d,y-3 p7p)+ykxmk arwpj-: lk/pher, a switch and three resistors are connected as shown. Wy/3+, yaj k lkk xtr-pw: spmd-)hp7-pith 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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