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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 resistorl: jai6d 4m,i ppc9.cg connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of t, 4cm iip9lg:a6c.d pjhe 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 connected in parallelyg s)mc8v1r/e b 91cgw, the_________each resistor is the same/1bc gyg1v8rm)s c9we.

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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 the4a16gzugnyy,*a 6ao, ud-y nqxko8 i( thin filament wire of a lightbulb causes the filament to becomd* 4nqagy6-y ,zn,6i ua kg y1(uox8oae white hot, while the larger wires connected to the lightbulb 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 relov2)v : rhsz4placed with LEDs. LED is the acronym for which one of the folloor : h4l2vz)vswing 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 lengv-b4:ivx 4cvmbsdn gw145+ml th L and cross-sectional area A. It is to bv41v-i:lmsxb n5+wbgv4dm 4 ce 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 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 hast/7ob.rppm* snw1bn*e u*ony2 f)q2 z twice the diameter anso*m*pn /r7pbey2 .)1 * tobnz2ufwnqd 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 twice the diamey5.c3*feswc vfo1e q6l4gvpm+0u1c b ter and half the length of wire X. If wire X has a resistance of R th6*o1.cecv cg0s+qmwb 5yf4e p3vf1lu en 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 yypxl:znv*(jisa p(1.tf6,1/ isr8cm *ut h hlength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materialips6tayx/n* i8* m,y1j(hzv (ftc .s: h lpu1r 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 jgd sevv crwz105wjcr5*8y/6 3 donu7decides to modify the filament. How /1rv6oe 7 rwzyuw35 g5c8cdn*jj0dsv 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 are made of the same material. The q:gmt.ttel6/,eb7b8apdj s1 /(f kz q6 dm ou,length and radius of each resistor i /a,eof8tep(d,6q7msuqzg. kt1l6t : d jb/bms:
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 resistancet2*,quitm 0u;rj opx( h5bheye3w47m 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 twqhthemubt3 j;r, 5(x 2ope047 *miyuhird 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 accompanying circuit diagram has 2qs,+tnvu0 eointernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reaunv +st,2oeq0ding 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 right. The three bulbs 1, rw02y bdm2x; l2, and 3 - represented ;0lm d w22yxrbas 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 9bx g,i. hm3b4jsyp;z iw+)b hcircuit at the right. If the current in all three resistors is equal, which of t3hbpi +z9,y)b.;hi jbgs w4mxhe 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 o0 5f2n8g mr)0 mslah-,11gl yf/qud anrwcq 6wf 5 identicall61wf as01yhf,m-05 8 nq)gd /2rwnucgqmrla light bulbs 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 following statements is NOT trua frnv fw04609v8l npqe concerning the simple circuit shown where resistors R1, R2 and R3 are ha 8w9 qlavrv6n0f40pfn ve 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 conn nmajb7j8f r9t46kiurj) f2+mected in series to a battery. Bulb X is brighb+ a8 7 rjrf4t6mn)km 2ijufj9ter 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 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 i2vsjwh ,v -bu1nom- l-n 5 secon-o lj2hsw1mv- n,v- buds 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 tpqnrlk v*5 x7(rdoieuh l3aj6yh / .91he resistors in the following simple circuit have the same resistance, which would dissipate the greatest power7e6 lnk i hy1x.pa/ruvh35(ljq*d9ro?


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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 cuyvvvq(m 2c-(3i4qzwt cfh14f;d vzk1rrent through the 6.0 Ω resistor is 1.0 A. What is the power supply vo ti-4kvq1y3 wqvcvhf;z2vzfm c((4d 1 ltage 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 batters 2u jw2:kx1bgy. 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 voltagjw g :2ubxsk21e 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 pw) pj- 5fvyb2pup5r. connected in parallel to a batt pw52j)vbpp y.fr-5up ery. 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 the m;a6+2 hf:1dqyi wwl ezv3 fcd0aximum vaew+zd:fy0;q vdw3cl126ah f ilue 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 resistan;s21ri6 hu rrxce of a 60 watt lightbulb designed to operate at 120 voltsus1r;2x6 rih r?

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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 dissipimi h izh9ze) 0*9 njh1lbol*,ating 36 watz)9bi,0hnl**hliz eih mj1 o 9ts 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 voltrfyph- )/ha kyv 22h/t, 600 watt.” In normal use, the current in ity -f/rthh2yhp/v )a2k 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 psrju0um)xh,g ot qa)3 ir7/1t roduced by a circuit containing only three iden0qu7 hto,rjiu3 r))1 gsatm /xtical 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 resistor/ clnaw vb e3,h(cfa:e6;ws) us. Which of the following equivalent resistances CANNOT be produced using all three resi cf ew ;wahc6:s,(a)/bnu lve3stors?

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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 diffe5 g.- s. yiwxu/ba3octrent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be proxc-as iuo. 5/b.t3yw gduced?

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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 agb9wukc 0*6chb7nu8resistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n idenbnb60 h8wu*cgc u7ak9tical 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, having resistance R1 and R2, are ,fm0anhky m27 connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is c0n7y,fm 2ahmkorrect?

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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 caw k(v83ntiyr g1t31when operating at 120 volts. What is the minimum a1v1kt3 w t(r8nyi cga3mount 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 r+x kplmof,o-37+ jb( rkgqu6desistor that is dissipating 36 watts of ubfj3kg+ qld- 7(6 rpoxm o,+kpower?

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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 heaqbv uc 4lzn-a9pzeyt-j4xx-;zsh07 9q20 msbter draws 13 amperes of current when connected to 120 volts. If the price ofa4u-29spb -myq7hj-4xtl0n ;svxbz zc e9qz0 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 l9kmq(i qsi: ke2 :hb*oightbulb lit continuously for 1 year at a ratq* 9i2(o qsie:kmhbk:e 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/pvg/q nwo ofj6tyk7sg7 87)n 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 the7g6fs 7o/ok/ jg v qy8pnt)n7w 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 familyr-4 f kk-vm;pc/e8 epg of six owns a computer rated 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 b;ppgk frekc4/ -8mev-e 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 conneccwpxcb/c9 l4-rzn(rg fw+ hp+ gq5i(+ted to four resistors to form a simple circuit as show (+pgzc/(p+9bn4 cwf5+hwirlg q crx- n 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 connemsc dv48oxv ; 1+sze8octed to four resistors to form a simple circuit dex; mcos14 sov8z8 +vas shown to 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 id0k/z xsl3v csb**)mdgeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a3gz*)kmvds l/xsc*0 bmperes.
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 ammeterf mt3pbvm76+l l 5w4yk, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 4pw6blk57tv+ m m3fylreads 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 resislf cp78;y6m jy/ ciia7tors are connected as shown. With the switch open as shown in the diagram the ammeter p7ycf 67cla;mi/ j8yireads 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 is the equivalent re.bkyo 24f4-uz nw ocnj1djf/ )sistance? Assume that all wires are ideal, ) wfod z4-uy/j41 n .nbo2jkcfthe 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 uaf9 +ju9g*y sdm.32/ gqkcchright with resistc9 dugsg.ca2*u 3y/f9 k+m qjhances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistoa+f,)ls5h t/,nbbddsfr+ ms 8 rs connected in a combination series abbd rslht5), s/m8dsnf+ +a f,nd 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 below shows five identical resistors connected in sw7 oi9+ 0xmtga combination series and parallel circuit to a voltage source. tw0 97+mgioxs
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 x:zzgynkm *5) bulbs are identical. Which bulb will be the br)g5zxmz ny* :kightest?


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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,7e 22s8+1cq xzkuui dtv4c mp-z-u7 rq a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperexuu-zi2cv8q+ m1rkp2eu74c t7 q sz-d s.
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 rxpgtm 0bu90fg we5/ 4yesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. g95ye 4/ugx tw0m bfp0
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 d w/ 1j(mrgrgtg; /6joresistors are connected as shown. With the switch open as shmwr(/jg6dg gtj /or 1;own 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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