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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 ws lxch.08 vk6shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best de hwxvk0.lsc6 8scribes the direction of electron flow through the resistor and the direction of the 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 e)k*ej4 smf ii.cd6 z:resistors are connected in parallel, the_________each resistor i)c6seimd .f je:ki *z4s 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 th+ u lac)wj(n)w7m nf.je thin filament wire of a lightbulb causes the filament tonm )n. j w+la(wcfu7j) become 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 replaced with LEDs.:qwyds+1i . jwx0k,b f,t-w ,bpo*twd LED is the acronym for which one ., d*x -,:jw f, swktwowb t+idb01ypqof 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 crosqoyo u6b nwdr l)q9:0.s-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 b0 :yr69d) q.woqloun1/2 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 :gz ,*eor4z9m(chvw6wj c gf8diametez:9c w6*mgrcvzjf ow,g h 4e(8r and 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 diameter and2,kh/sye56ces tvxv 9 half the length of 5v2ec6svx9yhk s/ ,etwire X. If wire X has a resistance 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 length L a) g-kq* dgreun1f 3uk:nd radius r. This piece of material is then drawnrdne g:3-gku1f* )ukq so that it is a cylinder with new length 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 lqz9 ,h u8r wt*,/vtsiqight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order towv,h t*8 u,iqqzsr9t/ 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 5r c,4x) janjb dm9xm)material. The length and radius of each resistob) cx)j9m,m5ar4djn x r 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 connvocowm2. 8vv i7hx+r7f3 hr(q)o i +vqected to a battery in the following way: “Two resisv qi)cf++vwvi7xq o.8mh2 3 r(rhoo7 vtors 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 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 7fv a2r..aot einternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amme. t2fea.avr7o ter 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 circi /y/ c6o,onug- drss 3qi2:yauit shown to the right. The three bulbs 1, 2, and 3 - represe6ody ,o-suyari n: i/ 2sg/c3qnted 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 electri1b5ykrtf)1x5zn ny/va8u l5jcal circuit at the right. If the current in all three resistors is equal, which of the following sta1) kx yau5/zybjr nlv1tfn85 5tements 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 sq v7rq e(q+-wnimple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whinrv(-wqeqq 7 +ch 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 fnwis+ va(d1,0hp miy7ollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R31 +7d iysmia0(h wvn,p 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 connectqp 5b7dat/v,rvbgm 8xe kyph :.;n 7z*ed in series to a battery. Bulb X is brighter than bulb Y. Assum7 *;v.hprq8x tb:pe gdb yavk75,mz/ne 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 winrowb 6nbo0;f l7qb(*m4v- h ell pass through the identified resistor in 5 seconds once the c;w bn7 (vlohm6b-bforne q*40 ircuit 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 siohv. zxn 17;( yy1gabtmple circuit have the sbgnaz h. yoyv1t71(;xame 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 t2ylfb ,d)m64cz7b sffhrough the 6.0 Ω resistor is 1.0 A. What is the power 4f,dcb zm67f)2 lsfb ysupply 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 series to a b p d0qt*8+g 1pnnws26z2rfqvqattery. Suppose R1 carries a current of 2.0 A, R2 has a 0 1*+qrf8tsnpdn pwqq6z 2 v2gresistance 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 resgs5p tn:bee;;.t5 geb istors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acro: beep5;b ntt e;.5ggsss 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. W ei;-mhj)r0pw 8zye0 that is the maximum value of the 0p e iz-8t myjw);re0hcurrent 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 ufmkk h6u+0lk7kv32z1vh5zyce of a 60 watt lightbulb designed to operate at 120 volfk kvlu 07ykh6h3 z+z2 u51mkvts?

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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 ohmg2ihmsxlo- 9w 0gk+x8 resistor that is dissipating 36 watts of powkgw+lx8os- i9gh x0 m2er?

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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 volt,/jov7o2ch qtb 8zak te:o3, 1cv .:uomae :.qf 600 watt.” In normal uo2 c3q:uva:o /jzk 7e.f e. om81chovt,qbat:se, 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 produced by a circui /jhdl/veyew -fo99.w5h pw;gt containing only three identic9//l5- vh y;hogww 9e.defjw pal 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 eqp 1wo2hi9 y4wbuivalent resistances i4pyhw1 b2w9o 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 bu1yz jwodc kt.,7: qj/e connected together in different configurations. If all three resistors are used in a k/:jzj1cty,uow.q d 7 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 connen*iwvxqndz 2-v3.mq32g 2v8kn0bj n s cted 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 s2.i0vn v8zvnjnnw233g-2mq k* bqs dxeries 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 resistr f,)ykr t;; nw3 r;,ql(cxgwkance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the fo, rg qc;t)rrlk,f3 wyn;wxk(; llowing 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 resistah/v n 5m peof4q0lx0c1, -jbcince of 12Ω when operating at 120 volts. What is the minimum amount of time thclij,/hoceb- p qnv x0 014m5fat 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 resistox3po n(n8ypzc+9kx -i 8in:enr that is dissipating 36 watts n-n(oie zy pikxpn3nx:889c + of 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 heateh:c6 pfofvq) 0r draws 13 amperes of current when connected to 120 volts. If the price vfh )qfp c:60oof 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 t(ez+o(adt ikwgc4h -*o keep a 100W lightbulb lit continuously for 1 year at a ratic*t hae( kdo+wzg(4 -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 4.00 2 */6 cs.fwg ;7h cwlb6/cbkhkcnw0agA through a lightbulb results in a power of 24.0 W associated with the bulb. Which on.w//hnl*wswhc bf66k c cc2;bak 0g7ge 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 rated-cd fcrw) a:6( 5hmkmj at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 205(mfh-kjdam c):c r6w 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 connected to four resistors to form ( s -9jg u*onrzk;kh;pa simple circuit ao* kzur9ph j;ngs;-(ks 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 cgwrmpgq6 w; 6 e(3wu5four resistors to form a simple circuit as shgm (pwu5 qe6;g 3wrw6cown 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 idh-nvi 7tt8 q 6oa,g3yk ,b2tqheal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a87q i6qyktbg,,hnt-o23 vt h 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 ammeted)u:bv rb u0- 3/pitwtr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammwt/b -ru)vp0:ud 3it beter 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 wk 2r q,vl-4lsj+erl2resistors are connected as sl 2l2l4rq-, wjevrsk+hown. 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 t qn:mnd w 23 ;qoj eu*wk05,go7)reayvo the right, what is the equivalent resistance? Assume that all wires are ideal, the batterru:wd2av)0,jn5m;* gowy 3n 7 qokeqe y 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 w.* (nrjojn-w+s1 l ;xi5s agu jht3a-of the circuit shown to the right with resistance sngtnj ha.(xi13*sjj w5lao--r+u;w 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 e f/( e6 ycp*/9i8suxn uonb5nconnected in a combination series and parallel u 6n9ny*(c8 nb/x/5spfe eiuo 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 connecjz69:: fhaq r uv+p2qzted in a combination series andfv uz6 r+jqz9h2:ap:q 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 diagra 4+k k8nqajvm;m, all of the bulbs are identical. Which bulb will ; 8k+vnq4kmaj 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,/4 e5s+k*jf la+4yxv0nrffzr an ideal ammeter, a switch and three resistors are connected as shown. With the switch o 0rz4 e/s *ff+fryj5x4lk+v napen 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 resixur,k7*od4cce2 - he tstors are connected as shown. With the switch open as shown in the diagram the ammeter rx-co7*2ctue, d r hek4eads 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 v,6 u;ksqp*ot are connected as shown. With thekt6q;*o ,sup v 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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