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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 shown, an electric current exists in the metal resistuv kgeuy /4rg0ep3n+,or connected to the battery. Which one of the foll3 0gnu/4 v+erug,pk eyowing choices best describes 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 cet(nnstcf6 , j /8k0gsi,w*cv onnected in parallel, the_________each resisto,(keg6jc8 tiw /s0f s*n ncv,tr 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 thihfagl r,6 9 ;v3dkhjx,n filament wire of a lightbulb causes the filament to become white hot, while the larrhh9dlk6v, 3gaf;xj, ger 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 repl h a+/czn9ons+aced with LEDs. LED is the acronym for which one of thecz+ ao+ 9n/nsh 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 auod k; j8b3oskl; r*o3vq,ovqgc (; /and 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 kgbs ;33;rdo;,qcuojoo va/8 k(*qv l 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 twicegg8.1 pzmzed9k(z)6 fe r td;h the diameter andz8ef gkm)r;(6 phzz.dtdg1e 9 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 twi(y g wqm29a :ltxy0of+ce the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would haveyfy+lwt0a(moq9 g: 2 x 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 resistouou 7z d,i;z;w68sjyg t)s.sir has length L and radius r. This piece of material is then drawn so that it is)s,usi;yjgziu786t wd;o z .s 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 light bulb. He deu)eb h-ax:5i);c+3s i*xwnl xopfj :rcides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given vo )jw* h5fsboxl+c3ip :-i xr;:)ue xanltage?


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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 resistor f,/ 0/k 1fec6zb3uixuc ub8 vt.o;bdxs are made of the same material. The length and radius of each resistoc/e, cbtf; io1vfdz u.xbk/3ubx0 6u8r 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 connectei9hoo6j3 n)s61.xumq2tuk 3swemke 6d 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 .ei9 3t s ue6kn66m2k hjqmox)o1ws3 uresistance 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 accmn:ui; to.z)n(2/vs asx7by kompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readin(.mo )s; a: xti7kn2s/n zyvubg 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 right. The three bulbs 1( 2x gqh*.smah, 2, and 3 - rh*qs(xa.hg m 2epresented 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 electrical circuit at the right. If the curr 3+xu -k-zo2g(t8bmx.xequmdent in all three resistors is equal, which of the following stat3uuxg8exzbk( 2. o -x+d mq-mtements 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 represelmb7 e1ty -z3qs.:-9cr i )ra- gi7u8ouzshzhnts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs zzl9rot --izy3gra:mh1)ib e7s.uh7 c8 s-uq)
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 statemrg/2bt7y:g t l1 8mmxhents is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistan2:8mtg hy /mgr1bxlt7 ces?


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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. Bulbw9 wao-m8h: yh X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other -o8:yahw 9 wmhto 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 cfql9(5v 3v+ 2a d(fhql cffwk7oulombs will pass through the identified resistor in 5 seconds once the circuit was cf 35hcv9qql(+ lf(wf7a fvk 2dlosed?


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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 followingz -clihv4t qj0xm a/s, ff5h,. simple circuit have the same resistance, whicxjiach f ,s -4,t.q0hvf/ l5mzh 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 the 6.i6et.rnsh/1v;( x xll 0 Ω resisto.vlnxh 1;rxts( /il6 er is 1.0 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 R1, R2, and R3 are connected in series tn aj,7vno ojs)i3h iq;x) b; i8/un(kto a battery. Suppose R1 carries a current of 2.0 A, R2 has a resist;o ,oa inj)b7 (huit8x)q n/ nvsk;j3iance 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 paral molb2pz5swuavk2:px0 8.a7rlel to a battery. Suppose R1 has 2V across it, sap k:pwb. 2luv7raz0o2 8xm 5R2 = 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 vm3:6xu enx/c ;u+ e rycjyz1-eolts. What is the maximum value of the current uuzm1 ux+ye6r/c e eny- ;jcx:3nder 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 designed to operate at 12q1u/lgy,zs*m w1 p8 vp0 vol /uy8 *1mvszg1p ,pqwlts?

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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 resip )a;7t+6zx qo .mzxqjstor that is dissipating 36 watts of p;m xo7p qajzz)q+ x6.tower?

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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 clothevcp;n (q+cxez)q1 hi6s is marked "120 volt, 600 watt.” In normal use, t6q+xq1 phn); iev(c czhe 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 a8,nsy44vu t+ck6v mhresistances could NOT be produced by a circuit containing only thvk,st n4 m68auhy4 cv+ree 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 resist,fgc 7nka .anr ck7+a(ors. Which of the following equivalent resistances CANNOT be produc7 ncnk7 .caak+ (fag,red 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 connecte 1xfyg/;fvs4 e a;c8ird together in different configurations. If all three resistors are used in a circuit, how many different values of totalf ey4ac;1/rfg xvi8; s 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 total powere6 lf2eab mi84 P is dissipated in the circuit. How much total power is de4 6maelbf8 i2issipated 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, h-f:hky6 l1zvjifu+ygryjk 10 ajv;.- aving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which gz kyfy-+j.y u-:r1a 1jkl6fiv 0;vjh 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 k11-wms3kn1df ;e n)z,lteqsa resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0-1sd1q,;klewfs m3t1nze )nk .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 that is dissipatin j5bw uuhu7v6+0q n3dr3jz .mog 36 watts0wmn5j3+ 7hu 6v3z.dq r uobju 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 heater draws 13 amperes of current when connected to 120 vo3a60mkuj*mh-z c2 de 2bnad4elts. If3b-uzd4k 220h ee6mja *mdanc 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 much would it cost to71kx3o-lh; hl nwxm;c keep a 100W lightbulb lit continuously for 1 year at a rate of 31lcoxlk;h- mnwh7 x; $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 rzsvv;nu32 h ;uesults in a power of 24.0 W associated with the bulb. Which ;3nuvzv;2hsuone 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 cofw*)7xac 2k wg3m,fdra/cf n8mputer rated at 500 watts in a 120 V circuit. If all computers a d/ fcrg)fa*wax72,3c 8knw fmre 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 batteramx yqpn7br s ev(-4b .;ukb5+y is connected to four resistors to form a simple circuit as shown to the rig b-xnarey+k7mb b(4 s5. p;vuqht.
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 f eu-y p g8vuqz1zk5)(kour resistors to form a simple circuit as show-zk8) ek5p( zyuqg uv1n 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 ;z95mc d +2 w xs+x+tqbxr)cwbideal ammeter, a switch and three resistors are connected as shown. With the swi+ ;d2qb mrw5s+ z)cbxwt9c xx+tch 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 thresw(ev mc ,9xg-,r0 fxd8z/pjme resistors are connected as shown. With the switch open as shown in the diagram8 m,9m, zergcxf-(xdvj s/pw0 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, an6,6e ktf/.u f 8dah) xrrwpdos;d pv1+ ideal ammeter, a switch and three resistors are connected as shown. With tpsp1;wk h fu dv+f6,oa.r xd)/6te8drhe 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 sho tt776diqxpb -wn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and adq7iptt-b7 6x ll 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 s3hqx s)e ,4 hfj)l vy++xf vnq5yz60fshown to the right with resistanc vx4 y)q)53 n0vss6fh+qxf, zlfj +ehyes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected(jkn ;0kfodd0 in a combination series and parallel circuit to a vojk;donk00 (d fltage 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 sn/izt9zkqoiwxk-,r 1o ngu/h / 5*h 1dln zg2/hows five identical resistors connected in a combination series and parallel circuit to a voltagkiqldzg,n5*gn k/uxrnth/ /9zo 2 w-1iz/ oh1e 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 ar84clqcbkxu;.9/ljoe y 0ub)re identical. Which bulb will be thl / 0;b.qurlyk4)8o ce9cjux be 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 resis96wbojdc )ut1tors are connected as shown. With the switch open as shown in the diagra9bc)u1o dwt6j m 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 ideh) q4qj,3ofkt ca-bu(al ammeter, a switch and three resistors are connected as shown. With the switch open as 3cjfq)(u a-qhb,o4tk 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 resipvjqwru0* qx,3lr*,h stors are connected as shown. With the switch open as shown in the diag* rv,plqj0qh, wrux* 3ram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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