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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 resistor 5gx+c3:twqjmconnected to the battery. Which one of the following choices best describes the direction of electron flow through : c5qw xtj3+mgthe 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 restq) e7/8mci:vg3id/ yzfbnbp5r cb7 .istors are connected in parallel, the_________each resistor is the75v 3 /)pcfdy:.m br/8nzqibgc ei tb7 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 fib;-lzw)o0 aqj/ rr ,rwlament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to tq0obz w)wr-rr, / ;lajhe 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 re,ej j:*8-i(pmk4k)y t c cbqlights are being replaced with LEDs. LED is the acronym for which one of the followiikr -jcm(t qe)*y:jpb8 eck4 ,ng 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-sectiot6jeyy 0/gi f h9q26 o+ih fn/nvi4g6znal area A. It is to be placed into a circuit, but 2q/ng0fihet9z 6 4iony/y+g h6j v6fi 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 a f*o )w9+xlj2)al gazzre made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance Rl* of a29w)zl zx)gaj+, 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 materi*,g7hml/ gs *,tqt, srj3v tbfal but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a,ts *h*trgj3qf gt/,,vbm7sl 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 hztd)s foxfa.3 x3npy8-he 5.fas length 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-fnf h syx5.o)3pe3tfx8d .za 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 dec18dr 8q( gwroho v.p:bides to modify the filamen.bvg8 (odrq r 1phow:8t. How should the filament of a lightbulb 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 resi*o(to :faj jv7stors are made of the same material. The length and radius of each resistor j(o:vo7f a j*tis:
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 tojma.dza1n)y+ , a6bvf a battery in the following way: “Two resistors are connected in series. This combination of two resa dbn m.6 yfajz)1+av,istors 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 inta nwyo4uy h85:ernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. y:aoy8uwh4 5n 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, 2, swsn*i+ jthlkevy4h :c:* ,b11dw, thand 3 - represented as resistors int: :t d*,cbh*hwjil 4swvy+ns1 1,kh e 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 a0grg5:(kh, gt tt)dmthe current in all three resistors is equal, which of the following statemmr (aggk05 )hd:t tgt,ents 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 e;n3vf;-sqxd lh84 awelectric circuit composed of 5 identical light bulbs and 2 flashlight cells. 3h;l;v exn8 -adsfqw4Which 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 following+(b keoo +)taf statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eq+ )fto+abe(o kual 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 lightbulbl w (3hugufo0tkf0 6g :n w,8-fz)pogjs X andY are 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 otherloutz nf-(w, f 0g:3f06k8)juwphogg 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 identified re q)u7brvgvtau; (/4aua* jy(jsistor in 5 seconds once the circuj74vu/a(jbu ; v (tr)ua*gaq yit 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 tl0(obv p*om+(1xfk + j)uohba he resistors in the following simple circuit have the same resistance, 1k bp()ho 0a bu (+om*o+xlvjfwhich 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 circuipd gu618zp fp)t diagram, the current through the 6.0 Ω resiszpf p)8d1 ug6ptor 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 -wm-wpd* mvm y/h2tr vz:m/ t9connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6hvmm/tywdz w:p2 /rm9- - *tvm.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 connectedoti ;+e l/igy j)l/h+x in parallel to a battery. Suppose R xhieo)y/j/;gil++l t 1 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 ;) rvece/eo( (6 fztnjt .v*; uct rrn7.;yovbis rated 1200 watts and 120 volts. What is the maximum value of the currentv;uc;c frno (rn.t ovv ryt)( ee/z;t6b7.e*j 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 resi8u: yc+*wgf cbstance of a 60 watt lightbulb designed to operate at 120 vubw:c y8f+*c golts?

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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 that is dissifrfv* 80ttast4poi r7* f)3nipating 36 watts ofrpf rv)7oft3 *0fis48 *nttia power?

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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 clothesy.r+gfn pe*s,-tcd.eso nw zq83t 7.05tgk ac is marked "120 volt, 600 watt.” In noro57 d ,0w.yt.c-fs3t sn+keg.qp8zatr c *gnemal 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 could NOT be p*hqjaj e 9g ,rqrx8 -f6*0sixvroduced by a circuit containing only three i 9qs*06x-aire*g,jv x 8qjfh rdentical 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 rbb l;k53jbm;u esistors. Which of the following equivalent resib;bl3 kmb;uj5stances 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 be connected+.kg wwes:1 ao7-fg4 jgpgkdp2,m 4pz together in different configurations. If all three dek12 pk-+,sa4:wj zp4wg gpm7fog. gresistors 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 is connected to a battery, a total power-x*o )z nvsjjj p i;ihknv,3 t 8erxr0c5ub)-4 P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical okj3 n;8*xcv )i,uni-br5j4sjxv-p 0he ) ztrresistors 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, having resistance R1 and R22vku : phlv9-c, are connected in parallel, the equivalent resistance of tv2lh p9vu k-c:he 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 it has a resistance of 186eiu2+yc :swknmzu5 2amq .*yk w1knw5vx-b2Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.4xvus+*uwk5mynqm wza12ic 526w k:.-ekyb8n 5 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 throug gj e;kk3al82h4 +uajjh a 4 ohm resistor that is dissipating 36 watkjgkaa8j+j;4l3 u2h e ts 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 heatxf1ix5,st iv:qz.7ep er draws 13 amperes of current when connected to 120 volts. If the price of electri.st7 5ix1:xp vfei,zq city 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 cye5)w4fi/zw6 o y( a7jsak h9pontinuously for 1 yearo aw4ae/yw j hp(fs679 y)z5ik 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 through a lightbulb t /)lrabo)kj*t d 6g,qresults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents ajr)*/to ,kg6 q)bld tthe 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 2u( -rhelufa pxt/s1/a 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 ampere fuse, what is the maximum number of the computers can be operating at s-2/u (xl/e uhtp1frathe 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 a si h0g :txabi9g99f upa5mple circuit as shown tbgt90i x 9:hfa5ugpa9 o 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 te lvjanc;0m8q84pd+i 4ir l7no four resistors to form a simple circuit as shown to the right. ;08ndr47vl4 jl ic i+m 8nqeap
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 are6 hrdn;e/q29ire7 zlp 2e9k ck.ac - un3h1zsh connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperer u2 9czk6h cdz1sal ;e7ikhhp.3rn 92/neq-es.
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 amx u 8q63ut*ueumeter, a switch and three resistors are connexq3ue 8t *uu6ucted as shown. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, a fs;ckrq6 kup 1uf:/n0n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammf 6n1c0;urk :kq/fpsueter 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 the eqyp83. l bolwn.uivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisynp.bol3w .l8 tors 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 circui sof* a )blcfxurd30)ed+ *5qyt shown to the right with resistan ffe cu5s) l0)3daxd r*q+yb*oces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shocj/irdk+qdf1( h zrt 57/c9kfws five identical resistors connected in a combination series and parallel circuit to a voltage source (frzr+ 15k/ 7ijcq9dt fkd/hc.
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 connected in a combinat )vv/kmezz5 6 +*(pzp z(rllution series and parallz (z+kvm )l*ru5 (6leptz/vp zel 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 diagram, all of the bulbs are identical. Which b; bx1+ p1f;u4smk yootulb w1 kbpoy4; ox1mtuf;s +ill 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 resiz c85 cin90piystors are connected as showniziyp85nc90c . With the switch 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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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 s2ju- pc/bblct6-k u5 qt fmf7wu2y;d:witch and three resistors are connected as shown. With the switch open as fl c;dut 2j-kmt-u7c/w 6 qb25yuf :pbshown 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 idealwp s az/miy16c (l*6jc ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the lsmw/*ica 6 p6y(cjz1diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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