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习题练习:.Resistor.

 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 thejz4h) /sfp u a(x :jqk8ke:vy) 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 int8:4)j/ek qzpf:ujk vsx )(ah yerior 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 conne-e zr+:k y6gqk 0tt/pycted in parallel, the_________each resistor is the sam:pkyte/rtk +6y0 gq -ze.

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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 fils j81dynwa, j*h/yu/5xyo8v(2 slsusament wire of a lightbulb causes the filament to become whitl1a*y8yn w85jssdusx vs//( o ,2yuhje 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 replaced with LEDs. LED is the a ucvrd4q8y17q cronym yqv1qr7c84d ufor 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 46-ypab3ys2qv t.k t4lt.t g bc:3yprand cross-sectional 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 old resistivity of the.gptqk4v -t26tr3lb:ctbyps3 y ay4. 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 Il9ny0xf* nxf, ty 4 hn0sj+r/zI has twice the diameter and twice the length of I. If I has renfy rfyz4t hxsn9/0 *nx+,0lj sistance 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 s+6w ;kz) jxb bd2szh; r2i/eqthe same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R sq2rz;/z)b+xwkj sb6hd2e i; 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 resistor has length L and -ilv*7a ;gnqlradius r. This piece of material is then drawn so that it is a cylinder with new length*l;v7q in al-g 2L. What happens to the 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 lobx2rgph,:xnd 81 z 35bof)wuight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the zg:h pdx )1wo23,xn b5ruf8oblightbulb 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 resis4w;/2af :gjp p:0jutu4 g sw)pa m1qwltors are made of the same material. The length and radius of eg04 w jup;amp:4)/ql:w g aw1pftuj 2sach 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, are connected to a batnxazmru/s0 . )tery 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 resistors is connected in series to a fourth resistor.” What is the equivalent resistance osna/zu )xrm0.f 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 internal rep3 j8pa1qj o 1k mw k13+v()llklemc(hsistance 10.0 a1)kll3kh(1om1 kv8 pp3mejj wql +c(kW and 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 the iwa.yl (5,w qvright. The three bulbs 1, 2, and 3 - reprv.a5l yq w(wi,esented 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 electricaup.myz9f4fxq t5/ n/el circuit at the right. If the current in all three resistors is equal, which of the following statementsyt 594nmxeqpz .f/f/u 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 circuitm8 2l( 9grm)h1hdvvcr4m3xh q composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) gx9c3 ld (vr8q14rhm hmh2mv)
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 the s8zjli( /5mitv+9ypjw imple circuit shown where resistors R1, R2 and R3 z j98l+pw(/5iyji vmtare 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 batt voswz)sdg /crn2 97e;ery. Bulb X is brighter than bulb Y. 9/;en)osws 2d r c7zgvAssume 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 di3 om6*(fwhhe/*b.ckm:7,l wb qmwf through the identified resistor in 5 secondsw,6wbhkih 37 *ff*b .md/cm oqm(w:el 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 resio.k; t iyfxgcd;hmiwmj86*n mx/-2/gstors in the following simple circuit have the same resistance, which would dissipate the greatest power? cd//mxgo6- wixnkg2 mjmhy.f;* ;i8t


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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 accompaq 4sks jcm ;a-v8j43gunying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power suppjq8u4v;ms 3sc jka4g -ly 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 con*9py lc1omn*n mny/ sw9j:pq2 nected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a reny/9mop2q:w9n1 l*jpmns cy*sistance 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 connecte4pdp-ut ,s nx*tbqi5; da 21uid in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the tsaniiqu *1btu,;4-d2px5dp 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 isis,+(vjq1zbn:aq-r z rated 1200 watts and 120 volts. What is the maximum value of qz z:rj(,+v-qinbs a 1the 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 designw 8a oq59l:e*+kxit m m c0e.r0jtqkv4ed to operate at 120 o5 m4 ert*cqvea+mi9k: q.0l wtkjx08 volts?

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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 iatt2 r12 .u6 u qmpjpk9rhx, pp02:rtos dissipating 36 wat tuo,mq t6p 2910prxj uhkp.ra22 :prtts 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 "120l 8a w(g9uw97 fn(t*dkf+spgn volt, 600 watt.” In normal use, the current i*9gw8f9 w7 +pnd( glt(a fsnukn 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 bf)qod;wwzkh* d+5ym *2*klz NOT be produced by a circuit containing only three identi qwzw md *lkf 2;h+o5**bzk)dycal 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 fg *epju6ml31)axwfa/ko u y /+ollowing equivalent resistances CANNaluuk/ ewj*3p)y mo1 +/6fxagOT 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 ofkvo8 bd t ;kjjn480d)rlk6t6m different values can be connected together in different confi80jk)ddmkjrvlk48 t;6b6o tngurations. 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 conn e8re6gjo23cjected to a battery, a total power P is dissipated in th8c2jo6jrg e3ee 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 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, ubg qvw +0l aa(u9+dv(are connected in parallel, the equivalent resistance of the combination is 5 aw9(vva+ (du 0g+qlubΩ . 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 a resistance of 12Ω l*t4 yc9 m04l*6ksa2wthmdj h when operating at 120 volts. jam k24lds9m*yht l4t0ch* 6 wWhat 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 resi1tueusbewc/; 7(yiun:c49oyjj /,ru stor that is dissipating 36 watts ej1 o9jbuu ey: 7/c,u;/ r (tisnu4wcyof 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 draws 13 amperes of current when connece.;/+powq czgj yvi7h.*2b tt yn2i p.ted to 120 volts. If the pri .o t*p+h ygv;jtbi.27.yiwn/ eqzcp2 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 itexbnv40 1l7 ks cost to keep a 100W lightbulb lit continuou v4nbsk1x0 7elsly 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 curre k 6qyce2efz/m6;v6k ent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the ykm/6 v6;eqzc ek2 f6ebulb. 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 ru4 :/1mp8gyrstqf9hrated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, whmuhr84 y1qrg9p:t /fsat 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 connectedp4y7bie y5q/l to four resistors to form a simple circuit as shown to the /l57qi4beyyp 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 form a simple cvx 6pna*mvorg 677) 6tfzcuw -ircuit as s6-g6 uf*)r7a t ovw7nvpczx6m hown 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 tr;56 ul3wef7by y6q p1m a28izgt6ooyhree resistors are connected as shown. With the switch open as shown itog b m1uze8o57i rl; yq6ya63y2f6pwn 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, n ojnlbni8q ug/o 4 4 ez5k3a9g1).zuwa switch and three resistors are connected as shjqnwznn a8lb ./)uo4194k gu g5i 3ezoown. 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 resistors arf w3*tjw,xy8x e connected as shown. With the switch open as y*jx,twxf38w 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, whad:el/xb d7y3vt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thdyd/ 3 b:7vxleree 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 i 1j/ku9ob/xe circuit shown to the right with resistances o/kuej 1i/bx9$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connect3 nr ov9j*+yim,fbu f,ed in a combination series and parallel circuit to a voltage sourcej,*yv brn+uoff 39i, m.
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 a combina-w 77drkvj(*a ajdp 1 g o+xckke)n0.ction series and parallel ciwn.dp ek70a)d c(1 xo*vj gj-7cr ka+krcuit 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 identz .jwstlwiy1qah;87h stq49 :ical. Which bulb qht;s7.9sw4: zlt1 hywq 8aijwill be 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 augrhz* n.6e9rp6 f za:mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe9uap6 fr:6ghz. r*eznres.
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 an ,..jigq 9za9*cgnuzh d three resistors are connected as shown. With thai.n z.,uz9 jhgg*9qc e 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 ammeter, a switchm hsae/yl e-pdm;p x.2p*; fb5 and three resistors are connected as shs;d -lphe;mm/5 b.fpp* xy2aeown. 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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