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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 electrimpf6 g 65cll.l(vmog 6cpd;)zc current exists 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 direction of the electric field through the intg ppm;z6.gdcvco l(6 l l6f5)merior 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 armf4 s ++dni2gqe connected in parallel, the_________each resistor is 4gq+dm 2+ nifsthe 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 ,*vyqyxkvcdb29 56sq wire of a lightbulb causes the filament to become white v62yb*vs9 yxq, kdc5qhot, 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 replaced with LEDs. LED is the t5j zd0p; 7jjn:kz r8oac jojk:7z0p5rz nd8;jtronym for 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-sen; gh9q.b.tqn 9 rddwzya1z00 ctional 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 the ratio of the new resistivity to the ol.9;0 .nawyr10bghn zzd9tdqqd 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 wi4nc hqledc5 zne pw8/)2jb0(rre II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R,e5e d2p8hb zjr4nqlcnw/) 0( c 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 and 3v qdyajh794m half the length of wire X. If wire X has a resistance o 7avm4q y9jhd3f R then 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 resistm c1y m5/0vtv:bnw)f kor has 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 the resistance of this material because of this prockb m51myv)w /0tnv: cfess?

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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. Hnigg6v4hdtsl ;o- /z6 , xbkl)e decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a4 /stbl h6i,v;xod6 gnk-z l)g 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 sap7q q:/kwpworf :j10hme material. The length and radius of each resistor ipwj /hk q1oq: wr7:0pfs:
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 Rjnuq y.+x fj)h btp+0(, 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 resij0 (+jbpqh. yn+uxf)tstors 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 th( *rv6q)9paecqhq nif6-g i0ge accompanying circuit diagram has internal resistance 10.0 kW and the ammeter he phi6 *(raq-0ggqf qc)96nvias 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 the right. The t3.spw fysbp0 lq4q45ave d6a.hree bulbs 1, 2, and 3 - represented as resistors in the diag ya3.w ppv44bdsel56q.qs 0 faram
- 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 txfcgqa)gpx h 3 h1*2j; hf83 o4ppw)t,t*ofeahe current in all three resistors is equal, which of the follow *oef pxh2xgh3fta ; 438 p,pc)hjo)qwfta*g1ing 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 electri:rbns ohl) m 0jt0.e3kc circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichont)j r3k hs0 .:elmb0 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 tao,g+xyv(s+ teeaa; 2rue concerning the simple circuit shown where resistors R1, R2 ansx aa(oa2e,+t+ey g ;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 to a battery08scqun c8e rrdr t9y)ged,)0. 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 battery00rnegsc, dyed 98rcrq 8))u t, 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 p)l;bk8k zikpoev7f5a 4i,l9 through the identified resistor in 5 seconds oncb)k 7l;e4 z,plvp a i59fo8ikke 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 2fi 04 uapiv9 o91phtgthe same resistanap9io2iv4tupf19 0 ghce, 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 diagrd pc6c2a7k* wsiak-8jam, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage Vs w-d a7kj* ck86c2ipa?


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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 connectedjop+y( 2ztkubn9i 65 o in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance oot5o2 b6z+pk 9yinu( jf 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 paraller94k p x9 wpzacl.dnmb5f++i5l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thelpf95a+9pdci w. 4 mk5z+xrnb 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 46 2irazp7- rs,hjlv ris the maximum value of the current under these condi7v sijz4 arr,lr -h62ptions?

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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 lightbu zu+fmpw.3wp0 v bh*ee5y,ks,lb designed to operate at 120 vol3w+kfyp ewzue 50 h,,*.svpbmts?

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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 9c5g2mg k(x vcdissipating 36 watts ofx59vk g 2cc(mg 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 i dr+u y.zuv(j2:t9 xkqron used to press clothes is marked "120 volt, 600 watt.” In nor.9vdkqz:(ytx+ uu2rjmal 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 resistances could NOT be producedl xrn lhld*b7oy(a7m5kl7-4s 0m ah.u by a circuit containing only three identical 6Ω *7hs(yd 5h4x ol0a .l7 -mm7lkau lnrb 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 resisto63,cmondyp*.u:iohb5k q jd /rs. Which of the following equivalent resistances CANNOT be produced using alocmjq53/ k6 *pbdh,ny : .udoil 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 diffcuz5.nl3pa z6 erent confi zzu.56 n3caplgurations. If all three 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 battery, a total power P is dive6y ltv8)u g: 3teyh3ssipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connectedh evy) 3l:yute 3g6t8v 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 resista;n owh5 i17hrdnce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resishrwn ; doh157itances 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 designe,u j60nb+jxcod such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0cou,6+x 0bnjj.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/ b+r :q7otnby that is dissipating 36 watts of pow t7ry :obq/+nber?

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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 e71bfnvblgv4;m3)yh p vd*p -of current when connected to 120 volts. If the price of electricity v7v 3ey4fn); vbdphlgm1b*p-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 100zvbt+g 7g5zp2*es u-d W lightbulb lit continuously for 1 year at a 5*pt+zvg2g 7e ubsz d-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 throu hh0qlq pg gd1;tv3so97,w7 xegh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of swpd t,oh7qghq 9x g 17;v3le0the 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+ 5,oq gk0ynai)ykug 2 500 watts in a 120 V ,ng2 k5yagu+ykq )o i0circuit. 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 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 conn7juo ,h(4ou wtected to four resistors to form a simple circuit a4 ,u(uo7htoj ws shown 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 tofckr- sn e q;8t,,m-mb form a simple circuit as ,r 8kbm-t, mqec -ns;fshown 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 ideal ammeter, a switch and three heeae, v gfsd/d; o029resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aed ha/ 0vfo9,d;e2g semperes.
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, an0+s c hc3epl-o 7g 2 ti5xl:vpv+iacu* ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagr7c+vu-+svh0etg:3 liacpp c5 i2ol*x am 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 rnv ;v7y zc7s6gesistors are connected as shown vn67gvc yzs;7. With 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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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 t5yy,:qt j 8dnq y.glskuh3:6x f*1uizhe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, u ,. y3f* ih1lz: q6qjkt5ugx d:nsy8yand 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 reqf4tb+tjt+fm 9 oe(w(sistance of the circuit shown to the right with resistancebm fq4je +t(wf9 tt(o+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 connected in a com 5p d4jt6b-azbbination series and parallel circuit to a vpbb5j 6z4t -adoltage 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 resiswnud74 3 pmvi.tdv8 )h)oqii,tors connected in a combination series anom.ii) phv)4 dw utd8 iv,qn37d 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 diagram, all of the z nsga1o yf6 :xisx944 bulbs are identical. Which bulb will be the brayo4sx nx1fg s49 i6z:ightest?


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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 ammetxyfa -49j-ey ter, a switch and three resistors are connected as shown. With the switch open4e 9yjytaf-x - 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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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 ar:s zi.m ab( 0u.ay5nwuhq*57 frvw1u me connected as shown. With the switch open as shown in tn.:zuvm5qws0f *i7bwm a5.(1yah uu rhe 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 ammeter, a switch and three gpqv2ifg3s/) ad*6 zr resistors are connected as shown. With the switch open as r*q/2 gsv3f6d)p azgi 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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