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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 the metal resistor cog3h3nj6l qbpxg*- kj /nnected 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 thrn - 3j/* 3gxkj6qgpbhlough 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 parallel, the_________each resist+ab. ejt qcu40ow7h0 tajobcq47.wu teht0+ 0or is the 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 5b+t+ i*ya ceafilament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightaaye+ci+* b5 tbulb 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 9h2p 1rl,rcgad7 so vfz5a,-6yifgb- being replaced with LEDs. LED is the acronym for a,bo, f2-7dcigyrphvl 1a9zr s5- g 6fwhich 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 grap uryc --;sz;pkog in53hite resistor has length L and cross-sectional area A. It is to be placed r-uyics;;-kn zp 35g ointo 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 has twice the dia; r7je qv;kg98lc3 c,ipf. )e dhvd6iameter and twice the length of I. If I has resistance R, II has r9 h)r3cgqe v.ivf 7j;6 ,kildae8 ;pcdesistance

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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 twid 4v3asqt+ss 8ne;8 4sz9y(c jw1k grcce the diameter and half the length of wire X. If wire X has a resistanck ed(3yc;sr1 84jw9as+vq s8nzs gt4ce of 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 resistor has lar*9xaz /x8 ss+2)or jmeq )jiength 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 becau j z+srxj8aa9o)s2 *mr/ixq)e se 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 Edisonw5wm n5oz5dqt.eocg-ts6f gz(im9 7; wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mogzo5c- si( qz.o d7 9nwtgm5te;f6m5wre 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 resist-lh2t w l+fbvm57e7eqors are made of the same material. The length and radius of mlhvt5l w77qe -bef+2 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,d4 cz hamip)7.;mdp( f 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 resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangemen;(ahz. p7m )dcd4im pft 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 resio tj7au5ivt0v2 ck(+ rstance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rkat+7ic5v (v 0tujo2 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. Theul (x)8*(3yw73 dedmcv 2vw ses nt.z4+jvyis three bulbs 1, 2, and 3 - represented as resistors in the di3)nj s.ev3s(8us7wvi y z4*ydmetx dw(vc l2+agram
- 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 cuqielw pu ))mrx phk :8.0tw,b1h,g-xq rrent in all three resistortk,h pw-q:p8) 1m0xw,)xh ebr g.u lqis is equal, which of the 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 62bqxl)lb n6l simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichblx2l 6lnqb)6 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 follotkxh bu)y)et oh6npjo 587.4mwing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistay5t .b6mxt8 j7o knoehu)4hp)nces?


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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 a fpls+wie+zpzov(i d +96sg 4(re 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 with each other to the same battery, whi(zzev 4(f9w ildips+ g +sp6+och 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 /qy(xzq ar5nxrud(x.:p/n - m through the identified resistor in 5 seconds once the ciruqx nmy/rxa(-x (/ q5d: p.znrcuit 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 for 1ql /b-1galyl +i/*gmirf6jllowing simple circuit have the sa-6 m/jl gl1lybg1+rq*/i i farme resistance, 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 t:ghh ao dtb9(5y q,td,he 6.0 Ω resistor is 1.0 A. What isgo9ha,y thd,5qb(t: d 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 serie-6z3jt.l: ( lolwesca s to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistazel.l:w st3 l6c-ja (once 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 Rhkn4;z ic3 6gsipue4+ 1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissi ; 4gi6ki+n3 hzcspue4pates 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 ma7cdsd9u q k338)xzda zximum value of the current unx7a 3sd8)9z zkd uq3cdder 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 lg2h8mnpr oqusso4 35;u2 2uvof a 60 watt lightbulb designed to operate at 120 volu5;shn 32ou 2vpro sm lg284quts?

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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 thavmji2) rwj n (: ;idjxdr19pg*t is dissipating 36 watts of *d:m;rjr 2gni (xjjvi1 w )d9ppower?

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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 l+vh hpa46 ok8l9x6j volt, 600 watt.” In hax4j kl+6h8l v9opl6 normal 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 coulse +rgijczv8o y5d9 )u8t8fx,d NOT be produced by a circuit containing jvoy58t9 i u+red ,x8gz)fc8sonly three identical 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+j/)7bht k t1shxt8zog4q0b p6ec3 fzs. Which of the following equivalent resistances CANNOT be produceqzt x6b+)ts4bj3hph f87o t1ekgz/ 0cd 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 o0 jao8e kufscb0sxj 3); gu:0qu6gc4m-m,mwdf different values can be connected together in different configurations. Ifxfb0m,sd jj0uaw 84 ukc cu60gqmsg -me3;):o 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 uwpnr73q- 4zq resistor 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 identical resistors are connected in series using the same battery? Assume the inteuqp- 7zq34 rwnrnal 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 c zqe;-jqz q;9 ;oey tam9w5no(onnected in parallel, the equivalent resistance of the combination is 5Ω . Which of m9 nqjq5qo;(;zz -y9e;oaew tthe 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 iabaim0/ bqh js *z j)2kh;7mv:f-p0fu t has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from mj m )z abqfph-; 0 ji0/bh7s2k*va:uf$15^{\circ}C$ 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 ip vjj r2(2gy;cs dissipating 36 watts of power?(2gjjc ;2 yrpv

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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 heatxmj* x ep-(ft+er draws 13 amperes of current when connected to 120 volts. If t+(*jp t-xem fxhe 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 to keep a 100W lq:g wi 2b9eq8,3vj sgvightbulb lit continuously for jgv8gqbv :sq2wei93, 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 of 4.00 A tz2x-i+wb8e;kh r ,5d k-mjaz/tykq k)hrough a lightbulb results in a power of 24.0 W km,r ze)x5w b- / -k8qih;+d2kakzyjtassociated 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 fj um 6gj*xlo1lpc)5i;amily 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 xol1pj5 )6j;ig*mulcbe 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 connected to four rew yqk8nyqb.*.cckwt/,f : wz 4sistors to form a simple circuit as shown :n cwyqfzwkcbw,8k. *q. yt4/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 form a simple c)cwbgmcim; - -ircuit as shown to ccmi)b;g -- wmthe 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 a;c)zd0hw) v+b orv,dv76pb,ke 4bc summeter, a switch and three resistors are connected as shown. With the switch open as shown in ,b),0 7 vsbd;kvv6zbw)ur cc4 poed h+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 ag+f 1;bw enif+9l:fouh moi.3mmeter, a switch and three resistors are connected as shown. With the switch open as sho if ebo +:1.f9uh ilg3;nmf+owwn 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 thr7 6*sn*.8sh e 4cis/n /x8aa ooiuevcjee resistors are connected as shown. With the switch open as shown in the diagram the a/e7/64isv8se.cxo o n*anhuj8ic*s 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 righ/dy + wusbi3ewy,d b,:t, what is the equivalent resistance? Assume that all wires are ideal, the ba ys: w+/w,e,u3db ibdyttery 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 tod m043x:vn:ryxik;p+;8xqv v) uhj1d*e vm du the right with resista8v4 y:rvxnjmddm;u+ 3qi*0uh1v p ; dvx:ex)knces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connect; grlc e2*ihmz-fpo 7d4)*l moed in a combination series and parallel circuit to a voltage )hp*- ml 4fmzie*lgrcdoo27; 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 connect0gp,:n gp.zwij7k*yj/1i *ywa c i -tved in a combination series and parallel circuit to a voltage source.1p/ ,wjjc 0 yi*i.:aw -p nigvzg7*kyt
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 idenfq .n f50x .wbj0gh7uizk+ +bitical. Which bulb will be the brightxg 7q 0+nb5zw .+h.0ufijbkfiest?


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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 three resistors are z(l m;(sdhqgb(/d s 7fconnected as shown. With the switch open as showgdhfz ( ;s(d( s7blmq/n 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 battem z4:ijdc+twjxu q8q5 /u3eq7ry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetq 7 iquuz8+/j5t e:djw3cmx4q er 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 resistors are connr4c-h /9qfamhected as shown. With the switch open as shown in the diagramf4c-/ahrmq9 h the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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