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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 exists in the metal re( lre /ze/7hnxsistor 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 through the interior of the resist e/rne(7hlz /xor?


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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 rc/7z7g im6wu 4/fkk6p ppxn* desistors are connected in parallel, the_________each resistor is puw f7/nzpm4i/ck d6g7p *6xkthe 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 lightb(nf(v :7azrdp l cwu;*ulb causes the filament to become white hot, while the larger 7p(:fndluzv; c*r(w awires 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 lgo+js (x y85t,pwsb0household lights are being replaced with LEDs. LED is the acronym for which one of the followingl0osgjyt8,bsx ( 5p +w 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-sectional-ezyi js,5gupip dyrw;;o fdl6p7p j05 )83vq area A. It is to be placed into a i,w8dp jivpp 3 j 76yey- l05;5;oudrsgpzfq)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 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 maor c.p8gw4o,c terial. Wire II has twice the diameter and c wp4or.cgo8 ,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 th-pg)i )63nofyfmo z/;ou tyh/e same material but has twice the diameter and half the length of wire X. If wire X has a resistance/h-uin m)fyf o/); pytooz 3g6 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 anu6ipv v36 jc e*n24lhgd 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 this material 6 *l4h 3g v6vjueipcn2because 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. Hep b9qzo63+ zed0xm *sb decides to modify the filament. How should the filament of a lightbulb be modified in order b3z+ez 6*qbp 0mxo9d sto 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 mad 7s:nku;df 9zg 51yfece of the same material. The length and radius fe5 zgcfn71dks;y : u9of 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 to a /2d2w plymooa dkam0 l-71,vf 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 resia7/y1f,vddookwm0-lap 2 2 mlstor.” 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 jt6p.e tni0a9accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm.p n e0a6.tt9ij 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 show8 *bqm/il *bp cgd:jtmb1 +l)dn to the right. The three bulbs 1, 2, and 3 - represented as*pgc/ m8+mi q1lj*b)b: tlddb 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 r3n *gis+;x f*tiy 1gzgight. If the current in all three resistors is equal, which of the following statements1**g3 ;fgs +gtnxiyz i 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 of 5 i(odbfs.ajqf6ka 99h ccz 2a t3 *mbdi.g67e2udentical light bulbs and 2 flashlight cells. Which b2tm66i jff7b9 ah2 a9*.bq ukd.3c edsczaog(ulb (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 folkml;e.f 36f5 ,xoxs +mqqvl,i lowing statements is NOT true concerning the simple circuit shown where rese;,3+x5fqlq x fm 6lmokivs .,istors 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 batteryl(42qu1 da2v,p:mp kn wqcl9i . Bulb X is brighter than bulb Y. Assume 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 beup :nip49a1 v,( lqqdwc2klm 2st 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 i +y)xksx;+6nu(fatq t4vz)hv8c a y(pq2js, adentified resistor in 5 seconds q(f p8yya ,jsc(s4vk+xhv 6;) qnatxz)2 +atu once the circuit 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 simple circuit have+ks *a,quuaqjw (drg(,n l:y 2 the same resis ,q:l(u,*awaj ys rud+ kg2qn(tance, 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 through the 6.0 m*u;1ny*bxf s Ω resistor is 1.0 A. What is the mf 1;ny*xbus*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 to a battery. Supznkub .55 (flzpose R1 carries a current of 2.0 A, R2 has a resistance of .5( f5kb lunzz3.0Ω, 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 :bk x7 fghp3hi u/8j:u1uhy7c9pyx.hl;3iol resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What io;h:px7 83k1/fuihb7j.hxiu luyg p9c3hly: s 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 i*+8m;xa cuq :jo m+mxds rated 1200 watts and 120 volts. What is the maximum value of the current under these conc;x+qa*mjo8xu :mdm +ditions?

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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 op(f d2b9xgk- gpsdfw:2erate at 120 volts?2kgfgpw-(2 :d x fdbs9

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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 dissipatinr*xei d7c)-,osl *hp qg 36 watts of po*)rph-l*x7ieosd cq , 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 clothivgmrelt4l4t 53hkyf .0;y j1 es is marked "120 volt, 600 watt.” In normal use, tkvhe gl4itl 14y5tmyr;0fj 3 .he 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 kr baqb ,:*+iuwu6s7ja circuit conua:kuwb+ij7b qr ,s6* taining 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.2*oxq8a6i8)vs3r:c vhuxkr 2ik+gb v Which of the following equivalent resistances CANNOT be produced using all 6axr:gsk32 qk8 x i)*+vo 8hb2vr vcuithree 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 togetherk *,bktc5b z:h in different configurations. If all three resistors are used in a circuit, how manytkh*c, b5z kb: 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 fc wo:);ly(jtP is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series uyocfw ;:t(lj )sing 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 resist,* 6on7 onogh2eh0d qkh)j3jmra99ihors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is j),gd2 kenrohj7 a 903hqoh*n6mhoi9correct?

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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 12Ω when opm3 +d( em r.yk.bjdmih9k5ck ,erating at 120 volts. What isikmde.kkb+cd(ry m .,j95 3h m the minimum amount of time that 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 resistor that is dissi uf9-ylql89 zn4u*d wsw* xid7pating 36 watts w4qzn ud diw x-s7*8lylf*u99 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 he: ri8odfy7tee/wj4c+etb, p l;f6*bmater draws 13 amperes of current when connected to 120 volts. If the pric l;o7 8p4eymw:ij 6ee rb+bttc,f* /dfe 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 wou)rfuawvl3 x0(i5a(u octu 0*qld it cost to keep a 100W lightbulb lit continuously for 1 year at a ratef ioq v0( 3u0wx5ctl)(a*auru 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 thj 6qig;3xrd0 ig.nm)grough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices bes)dg.i xg6niqm0 3r;gj t 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 at 500 watta :muo5h fw//ts in a 120 V circuit. If all computers are plugged into a single circuit protecmafw5/ hu to:/ted 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 form a simplgs: b5yxy7br 2e circuit as shown to the rix7:y52yb gbrs ght.
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 wq.lyqxj9s9 :5w,w b 17jgy xmto four resistors to form a simple circuit as showxwqx,sy 759wgqlyw b1:j.m j 9n 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 ideal ammeter, a switch and three resistors are conxkj0h6m 9tnbzhjg; .7nected as shown. With the switch open as shown in the diagrn7m h0kgth jzxbj6 ;.9am 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 three resistoafbeg 495n.j0v4b fvqrs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampev bfavqnj9bf 40 e.5g4res.
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 2c5vanc)qi99 ( fjteg ideal ammeter, a switch and three resistors are connected as shown. eg (5)vtnj c92qifac9 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,ltf 6 e.e0yy) it4ube, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal ryeye),fl 4eb0.ttiu6 esistance, 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 of8.ye wf:rkx .391av nnp*lj6xtn3hjc,w akf9 the circuit shown to the right with resistanc9w,j8nah wpxfn6ejk.v 3tk.: fy 3n9lr1 *axces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identjra ;1)ahy1x uj0 ygif6d*0rsical resistors connected in a combination series and parallel circuit to a voltage xyjui yf;a* a 6s1dr0 10g)hrjsource.
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 n56)rmvnp( 1cdo)ad,gfl 0rtcombination series and parallel circuit o 1m6d ))(rfvlnp0n dr5gatc,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 i) k wofq:.kje,dentical. Which bulb will be the brightest? w joke qk,.f):


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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 a30msa cx5zf )ynd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere)0 f sx5cy3amzs.
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 resd1zvd5 cs-qp+istors are connected as shown. With the switch open as p5vdqd1 c zs-+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 threekxz529 w)xd9c dyu.e t resistors are connected as shown. dtk2.wzu 59c )ex 9dxyWith 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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