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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 currvag7:n. zrji2 ent exists in the metal resistor connected to the battery. Which one of the following choices best describes.:ir7jazv n2 g 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 resistors are connected in parallel, the__k0fx d ; jm8d.sku8s9c_______each resistor is thecd js8dxfkmu809.ks ; 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 wire of a lightbulb causes the f-pdnfpw5n(v*x2i qox+ 0os.+g -ib g vilament to become white hot, while the larger wires connected to the lig pgiioo5w+*nv gd- bq-xps. 2fx0nv+ (htbulb 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 beivlv4/xe r;bbdw 3:9lvng replaced with LEDs. LED is the acronym for which one of the followin;9dlv 3wrel4 /: xvbvbg 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-sectionalf f9kkiw7. xd9 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 resis.9 f7ikxfwd9 ktivity 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 da;)xf: j (zv3sw6y njmiameter and twice the length of I. If I has resistanvf36na yxszw : jj(;m)ce 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 and17.u ,jizh0w9u/dbgo odpyq 8 half the length of wire X. If wire X has a resistanozb.j 7 /upwy giuo9 01qdh,d8ce 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 and radius r. This piece of mavmladmk6 f 9wc2 7s5lh k.0fn4terial is thn9m2lcw v sd5kf6la .7h 4fmk0en drawn 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 mawqa+:rhzew3) ke a brighter light bulb. He decides to modify the filament. How should the filament of a lightqwh a3:we+ r)zbulb 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 argzez8+:0/ tv bqj e0gpi3k ic.e made of the same material. The length and rad ti3kc j:zizqg8.p b vee0g0/+ius of 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, each of resistance R, are connected eaov;0wp vgq5iai8/ l sp00d5s6-kizto a battery in the following way: “Two resistors are connected in series. This comb i;vlaoawdi00e z8-5p65vq/ ipk s gs0ination 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 hk+llarm- 2 wx,as internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltm,x 2lralw-k +meter 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 5ed7;coe qqy5 shown to the right. The three bulbs 1, 2, and 3 - repo;qq cyd5e5 e7resented 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 electrica1 e( 0j7h ni)qn8qukr p0mat+jl circuit at the right. If the current in all three resis 0ap(qq )u1j8 j ert+n7k0nihmtors 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 simple electric circuit composed of7tn d rb2v;s/s 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbsrnvst/2bd; s7)
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 tcb:6/o+ yd bkbhe simple circuit shown where resistors R1, R2 and R ocby:b d/bk+63 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 battery. Bulb X is bmliv46;) /z s5g 1bbaxu)sfawrighter than bulb Y. Assume all circuit el6/4u)amvz x)islsbg w;1 b 5faements 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 ide(t0eo ;z2uu rfntified resistor in 5 seconds once the circuit was closed?o( etuu 0z;f2r


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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 fo9(x9o.e7h 2gp/mppvq z*efuwllowing simple circuit have the same resistance, which would dissipate the p.zgpee2 *v p7uf9m/x9woq (h 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 thex 7ws /d1fm;frough the 6.0 Ω resistor is 1.0mf7es/1fd;w x A. What is 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 R1g,/bz+ djx0s wg8zj/b u6fz2 e, R2, and R3 are connected in series to a battery. Suppose R8z, exjwjgdf/bb0u s /26zz+g1 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 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 payv p 1pubp))l hum3f(qtu8/ 6orallel to a battery. Suppose 6q3 1/p)lputyu h8pb(v m)uo fR1 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 at1p4 -0m;dsums n4ly wnd 120 volts. What is the maximum value of the curm4pyum -;d10w4sltn srent 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 6:is iyjy v17-a0 watt lightbulb designed to operate at 120 vol ysy-jvi:ai 71ts?

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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 res(erj;uh-vor/m4q qdp6da :9p istor that is dissipating 36 watts of pp:vh oamq4(edj9 6 ;-pqr du/rower?

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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 clothesh *kyupeg40m u, tjr56 is marked "120 volt, 600 watt.” In normal use, the curreeyutgjprmh5,4k0 *u6nt 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 tzzcdk,:()2aw /; lz2-riloshzza1 r NOT be produced by a circuit contai(;tolz :c1zsdzrla2h )z,z2 w -ir/akning only 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 resistors. Which ofb3yk1d.. vo9mkn i z5y the following equivalent resistancesyd9 z3knb. 1v. moyki5 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 )*k t e1hbbi)nbe connected together in different configurations. If all three resistors are used in a circuit, howib)b)nh1 e* kt 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 t;9eb+ r thux9j1xl,xlotal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connectedlxtljx 1ur, 9+ex ;9bh 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 connected ifvynkk 94m;. ks-dsl76sgye1n parallel, th9 gyk-ns se6 k;k 714dl.syfvme equivalent resistance of the combination is 5Ω . 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 8t 9 drw3wo aurq)if37it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take touq wa3tr83) 7oi rfd9w 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 resistor thaxgau314 ldlp, t is dissipating 36 watts ogu3, 4dl axlp1f 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 69oyiqnw+pxw)ifc4 ,abrg 84of current when connected to 120 volts. Iwr+pwn,xa4f yg4ci)6i8bo9q f the 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 mlal31-o.nku+l 5ly j buch would it cost to keep a 100W lightbulb lit continuously for 1 year at a ratyjl3n -ukbl1al5. +l oe 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 through a lightbulb results in t;yg(94m:d8ozemkeq l 4cpn *;d :gxaa power of 24.0 W associated with the bulb. Which one of the following choices best represents xpcn4;:m:9l y egdaqt(ke;ozgm d84*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 ownshu0gx+u g*; j ;3ps 4srfwoqu7 a computer rated at 500 watts in a 120 V circuit. Iu us*7gq;us;x4r+f0o3wpgj h f 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 connected to four resistors to qhhee/( s40gw nu,-f9gf6 89xigk0uwmex1 suform a simple circuit as shoesegeuk4/9hhg0 um1u -s(9g nw,f wfi 60x8xqwn 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 circrkc6 n,z2)n uauit as shown t) cznn6u ak,r2o 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 resistors are fo,1lesw0xg- connected as shown. With the switchfsg ol-e01x, w open 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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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, a switch and threkrh o:si p/1e9e resistors are connected as shown. Withrhp1eo9ks/ :i 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 th w/i a;:te2pmmree resistors are connected as pe w;:m/m a2itshown. 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 t*f4j8 m wqk mvs7.0gw) ooj:nyhe equivalent resistance? Assume that amw j)4 0*q:oowjksgvy n87.mfll wires are ideal, the 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 v1okiim194(prww /iv.dw xq 1shown to the right with resiww9 d4.iimvoqp/k1vrx 1 wi(1stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorthlx1 2zopv.37pgf xr*xlg -ymgk64 .s connected in a combination series and parallel cizt3g*y4 x.lpp.x1fglovg2 - 7r hxm6krcuit 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 cojwewbc v93yyun .3f z)1 u3k(pnnected in a combination series and parallel circuit to a voltageyp33w9yuv wc z bue.1jf)n(3 k 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 i- 4 ggzi(x 0(:zyph(bgjhew-u:og zpf zg(2x6dentical. Which bulb will(gxj4hg0e oxz( (g-ywhp2 up(if g:-zg6zz b: 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 ammeter, a switch and three resistors arezvz1p.lp ( o3h connected as shown. With the switch open as shown ip3ph(l 1vz zo.n 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 are conhrfe6znk:wez*o y;( /xvc *) tnected as shynzrxt*ek/6cwv(;z *o: )h efown. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, ans+lmi x69vxe iahu 2// ideal ammeter, a switch and three resistors are connected as/asv/2iui h+l6 9xme x shown. 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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