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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 ihfuglq0c(v ,z3a70 xb b) p4dxn 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 direction of the electric field throux g p7h bl,(qzfbc4u0dx0v a)3gh 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 resistoxh3h*jr0zys)jzzo:/ ;/ d gddrs are connected in parallel, the_________each resistor is the ssz*dd/g ;hdohyz)r jjz3:x/ 0ame.

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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 throug ykmcy(b, rzy*2nzi- (h the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb z2 ik,(yb-*ymnz(rc yremain 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 be)u6ji80tjh lc ing replaced with LEDs. LED is the acronym for which one of the following ljt6uh8i 0j) cchoices?

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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 a3/emuu5;7 uoqn;avm v nd cross-sectional area A. It is to be pvam v7oum; eu;u5 nq/3laced 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 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 II1n5jgvds1j4qh+d:rs3, r a z v has twice the diameter and twice the length of I. If I has resistance R,hs,n agd5 rr1+ zvsjqd1j :v43 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 thesp32l x,t3 w-,wmnyft same 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 resistm3wtyxw3sn- lt ,p, 2fance 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. :7uv r 6dzr2z)9lx mkfThis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to th9 fdk7umrlxvr2zz )6: e 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 light bulb. He dectak xbw0m:riki++v3e 1l5f4 lides to modify the filament. How should the filament of a lightbulb be modified in order to make the light34 ik+f 5 l+evkblatxirm0w 1:bulb 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 same material3l46 mqpcnp- n1+bi-:uxakj s. The length and sc k6-jnapb4ulp 1:xq-m+3ni radius 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,;) ihtmr4nw9 z2k48 wv/novob are connected to a battery in the following way: “Two resistors are connected in series. This combination of twh v;ovzw/ 8kt) 2n4iwr94bonmo 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 in the accompanyi fdvpp/* b88v yqgjo4;b0ou+ dng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter re;doyfqu b pj/*bp8v40g 8 vd+oading 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 fgg3f,/dgm..e kgx +n - 3 nch(l v*cajoudz3,circuit shown to the right. The three bulbs 1, 2, andg.+ l,vnc/ x,- 3u(kno f.gaz3d3jhdmc fe*g g 3 - 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 the right. If the current iec ;m/8;qt9xu ahx+m+(dy lyy n all three resistors is equal, which of the following statements must m(9h8+;ldeaqu x; +x/mcyyyt 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 repr7fpxsr o./ ,fpax0fe44 e+gphesents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight / pephfff7 4g +pxr as,.eo0x4cells. 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 ths*ufpk.lub47*s/ l*i n(9g /d lud vmre simple circuit shown where resistors R1, R2 and R3 are have equ i *uv.dlu9kr*/nms(4pufsdl7*gbl/al 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 ine( wqs7o)78k gg f*otv6y22i+rkd qmn series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are conne)6ws (e*yg27 tqr+82f7kn m kdqioovgcted 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 will pass through the identified resistor in b3vmg5mf0j3 c5 seconds 03bm3mgc5 jfv once the circuit 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 themqb 2rr9991d2mya6(hd jleqs same r9m9 jyelm s16q abrh dq(9r2d2esistance, 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 current through the 6.0 Ω jc1uv(m ;r kn xnd6a55g wc-k4l;ww0rresistor is 1.0 ( ma ck4-n ;cl56n1kxg05w ;duvw rwrjA. 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, Rpt2et 69qqf u-2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissippf6q-q2u t t9eates 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 to n fqck0+;8syoa battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 Ws08oyqnf+ck; . 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. zy)xa4 h* f/wb What is the maximum value of the current unde4*bw )yfax zh/r 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 resispotc+3fw uxk59nsfa-b1+ntt; )gq3 b tance of a 60 watt lightbulb designed to operate at 120 volb35nfp -q+ +u9cg kwtfnt;1bs 3 o)taxts?

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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;bj o4.g 3mu,3+; tjdgjjym wm resistor that is dissipating 36 wa.ytwb;3;j j3 m4mog jgm ud,+jtts 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 "120il sx0h c)0t3a volt, 600 watt.” In normal use, thesac3xi l 0)h0t 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 resis5 ci8lz*pa .chu2tg3ktances could NOT be produced by a circuit containing only three idengu clc5z*hp i2t3ka.8tical 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 resistors. Which of the following equivo*clil5 nee zpr.u. g;s0u9/ oalent 9n. epolec5u0 g*l/so;r.uziresistances CANNOT be 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 be connected togethek/ y i+bgufi3i4o7cf :r in different configurations. If all three resistors are used in a circuit, how many differentbfy: 4k iiif/ c3g+7uo 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,yt os;uizs: ) ;:bay+d a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected u ;b ;:s)z+oysait :dyin 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 connectedccrni gmz2z+k; t,1w gis/s(betw949 in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistaswt+1 z 4b9k/cwczer;gtgi2nsm,i( 9nces 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 whenl9j1iqp +t xg29yle 9w operatinl jt9qp x9912gweyi+ lg 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 dis rv/ 2w0dawfy+sipating 36 watts of d2w /ryav f+0wpower?

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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 con* -gjy2lamk8 g)a;fqw nected to 120 volts. If the pri)k*j8 l-2wgagqyma f;ce 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 k bh.z7 7puz: ggxcs8v4eep a 100W lightbulb lit continuously 4h zg7cu z7:v g.xsb8pfor 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 ofae+aid 7 hf;f1 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resista1efa7hia+f ; dnce 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 /f5-:jcrulm gcl zd8 4in 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 operatimc g8:dl r l4/ujc5zf-ng 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 circuuoovt ij*-2 /(+3d- bhlqpr:e epwo2hit as shown to the right:d/ ppu w-heh2oot2b oer*-ij3l qv(+ .
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 con qy8r-7cecxn3 : cb lm0if5a/fnected to four resistors to form a simple circuit as shown to the xqm5/ay8 f0b 3c rflnci 7:-ecright.
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 ar4 jdcqx6c-85e wyh; jkp /-n v5ika0three resistors are connected as shown. With the switch open a5 x/-45hcayk8rvq0ei d ka6n c-jwj;ps 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 resistors g5*pz-vsggu. are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesu*- vgg.g5zps.
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 (aooxnblimy (,2 t: f.connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amo a :b2tn((lxifmy,.operes.
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 show40,jnmp9y,m3eg 5r7e pmxr dk1q3kavn to the right, what is the equivalent resistance? Assume that all wires are id,3e9x4pqmr k dn mkm ayvgj,3e p175r0eal, the battery has no internal resistance, and all three 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 ctf- 2(yeg;gk right with resis-g(fe2ykt g;c tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicad-vk-gi +(1v.s fhk enl resistors connected in a combination series and parall-1( hkednvs vg .+ikf-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 ve(8i) s0k kytin a combination series and parallel circuit to a voltage soukyvs8e0( i)k trce.
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 vooqa 0k(x 24fdiagram, all of the bulbs are identical. Which bulb will beo4(k0xvqo af2 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 th- e(j1rc o1vu bwo5j(bree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reb1bo coj(jw1 (vu5-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 idt;7. si/pcc kaeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diag cc7;/tsp i.akram 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, a switch and three re/aoq8q3 p-fm ssistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampqq8-o/sf3pam eres.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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