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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 exir3 qp6 vn(.vessts 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 throu( psq3ve.n r6vgh 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 con+oj g:z,ff -5bjk1t3e jkyrl5nected in parallel, the_________each resistor is the same -k 3:ztb ok+f,y55jjr1f elgj.

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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 throug7vuhciyhc2p3m/*zy 9 h the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain muchyv/39 p chmu*yhic 72z 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 beq(/ov6honp- xbj fq6)ing replaced with LEDs. LED is the acronyfoq 6x- hpb6j/(n)ovqm 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 h5m)n;u5a7 crl p3eekf 0 c;hcgraphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it np ;0 hr5 cmcca7u fl5;e)he3kfirst 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 mv)e hxi*clw)4j cmvj4i qgm -k7-ub .ymr;c)+aterial. Wire II has twice the diameter and twice the length of I. If I has resistan-mvj)bmv; +.)xkw*hmc) iqjcy g ie4l 7 r4-ucce 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 and hha/qt zx:++ vb1dys ty4t mx:; vv1+wyalf the leng q z/yv + a4tm+;tvtdb1xhy:1yw :sv+xth of wire 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 x 8dxv awqa/at(bj)(vt0 1:azresistor 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:ta(w)ab 1v q zxdxa(/vt08 ja 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 lig)rb aso-9z 0lght bulb. He decides to modify the filament. How should the filament of a lightbulb be modified inao 9s)-l0r zgb 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 are made of the same mateudfwewyh1+9t-w sdbsgz/6p/o9e q 37rial. The length and radius of each resist/o ed9gwzyts+7fd-q p6hs 13b9/ ewuwor 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, e v(i ubp)b.iu 8cvg.,yno+)jk ach 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 equiv .,yo c8g)ibv+ibukv j)(.upnalent 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 th1 a73*ptt6qi8dgd7:mij qh0 mowv)ome accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resisqvj tdw1)3*q7g i8d6 0h oaoi:mp7tmmtance 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 righn fcky-(-6,denl b3yz t. The three bulbs 1, 2, and 3 - represented as resistors i, yn3 --f6kz(nbcelydn 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 ,.mo: ef u;q1q8x5, 3 ua zlqug.ugdajelectrical circuit at the right. If the current in all three resistors is equal, which of the following staulq:mqx z ua e.gjago,fd8.u 1;u53 ,qtements 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,c- i +lqwbs 0bltep4af47d0j right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (cs i44b d0,a lj l+7q-0ftebwpor 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 folbqu: m9qex h3)lowing statements is NOT true concerning the simple circui bu:xqe) qh39mt shown where resistors R1, R2 and 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 batavt/dsv7m q,1tery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in par vs17/,qadvt mallel 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 willabll9 ;v1o3 ak pass through the identified resistor in 5 seconds once the circuit 9lk;aab 3lo v1was 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 fol :y6:izwu .apjfg*f.clowing simple circuit have the same resistance, which would dissipate:f.ucwf.y: g* paj6 iz 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 ciwggdfn8l m/ 3(6g 0i;orv oiz lv9l07nrcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is 3gn/0;n8ro gfwdl ll7(mvv oigz06i 9the 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 connected6l+klw 9kfl voq.bia x( /9d(k in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistanc(.kl6+9vabqd ow k/l9 lk xf(ie 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 rsj 63, jcspkgii)ixip6k ,33u esistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across6icuji3s3k, 3,ipkxi)j6p sg 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/ffvgj6- 2d; *g- hdl9czr qrc 1200 watts and 120 volts. What is the maximum value of the current under these condition- zfgd/d2rvqhr;c lc 96f-g *js?

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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 lig.i)3l6p msruf8bk ixbfg/3+ h htbulb designed to operate at 120 fh3ri f6)/ bm.p i8ugl3sb+k xvolts?

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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 z,tyzs7c5g (i resistor that is dissipating 36 watts of poi7g(yz5zc st ,wer?

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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 telga x xo)*.-clothes is marked "120 volt, 600 watt.” In norma-tg* axox) .ell 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 resi0pwpsxo / - xhg8v/woqezt)/ 4stances could NOT be produced by a circuit containing only threo/vtzo p 0h4w/8q )pxw-xesg/e 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 of the following equmct6/4pwyc7 dvbr.h ( ivalent resistances CANNOT be produced bpwvr7hy4cct /d6(m. 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 be connected together in diffeeca j b8bgef5 (b1/5(8o (uy8kdce lczrent configurations. 1 8aycu c8 kbcfo d l8ge(eb(/b(e55jzIf 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 isk c qj)+wswz;5 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 thejww)zs5 k ;qc+ 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 kfs-; a*p2jxj5aw, auin parallel, the equivalent resistance of the combination is 5Ω . Which of the ffx j5s2aw k ;*j-paau,ollowing 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 thg :rtfj cfh-/n8ho:w0at it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that :-f rgh0 f /hjtcnw8:oit 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 flows4(wdq(z *.mj8+ca zztxiux 6h through a 4 ohm resistor that is dissipating 36 watts ofhz+ w zz 6xjc.8mxti *ud(4aq( 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 heatd5y .eg4agyfa*xx,*8d .l7n3je fwv ier draws 13 amperes of current when connected to 120 volts. If the price ,xg3el.a4dy 87. 5fwjda ngi* vex*fyof 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 lightbulb lit co(i /be jwgl 0k99y0jvq4n u5tdntinuously for 1 year at a rate oin9v jjk05et4g 0d(lw/ u qy9bf $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 lightbulbb/ sg)b ij8.wb results in a power of 24.0 W associated with thb wsbi/)gjb. 8e 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 z (lsx ane515ta family 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 ampetl z1x5s5ane(re 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 battawo (*5isy jm.dgc( )0ugx 1 ;ir,lxarery is connected to four resistors to form a simple circuit as showny() 0. diwrs ;x lr1ij,u*mc( go5aagx 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 connec9, a.l+rspzdf3 yglr7j;z 6l dted to four resistors to form a simple circuit as shown to thez6l9dj3z.p sr;r7f,ayl+ gld 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 thr*gdt.s;ph*7 7kw+wjbygt .zaee resistors are connected as shown. With the switch open as shown in the diagram the am ktg w.bw**as7j .py;+7t zhdgmeter 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, any hf wra71iecd-g-:j 6xs, .0pi 6tbtc ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am6ca0:xp. frd-t jtewicbh1i6, s 7-gyperes.
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, a iurv0n 65 o3ikmyf75an ideal ammeter, a switch and three resistors are connected as shown. With the switch open asi67f0raky5ni o5mu v3 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( p09 /rse7qpkorsr/ :uv0qbo4yj (zz to the right, what is the equivalent resistance? Assume that zekvp0 :/(py9ors0j7 o ( q4/qzr subrall 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 thgrzbf5 xg, mlt. 0)*l0b.eu nye circuit shown to the right with resis b5m *.zynf gx0.elr,gu)l bt0tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belopd/ir6apv24g9 mt jk)6g2 j mnw shows five identical resistors connected in a combinationrk mv9m 2tpi2n6j jp 6/4d)gga series and parallel 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 connecdxeq)jbml+53xp9 r 22z9vebqted in a combination series and parallel circuit to a vol+vqd)2r2q z embx5b p93lexj9 tage 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 (jd6d g,xafz(7qm*f f the bulbs are identical. Which bulb will be the brigmd (fx6a fjgq7z(d*,fhtest?


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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 6 *dn8o+siqx vthree resistors are connected as shown. With the switch open as sho+ o*68qd xvinswn 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 idern (5d;+gls bjal ammeter, a switch and three resistors are connected as s+ (5;jb sglrndhown. 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, an ideal ammeter, a switch and three resisthxqi-b16jqezv 4 /o- oors are connected as shown. With the switch open as shown in the diagram the 1hx q 4ooevq-j6/z ib-ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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