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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 cu :8qk*n jxoif6rrent exists in the metal resistor connected to the battery. Which one of the fol6ik 8*f xqn:ojlowing 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 are1 .mun6xhpbl5 connected in parallel, the_________each resistor is theh5b1ux. mp6ln 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 ligh g;h yo2m03gv4pzsf* btbulb causes the filament to becyshpm*340 g2 fbzvgo;ome white hot, while the larger 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 arew6.v;tj m xja1hjncidb5-4/ x being replaced with LEDs. LED is the acronym for which one of the ;jbj5 ajx./6-h i 4xdcwtvn1mfollowing 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 hi ;q r*f7s.rpfas length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in prs ;r fqf.i7*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 material. Wire II has twico;kwqia/d n dhiy6xc,a0 a )3 /h5/krre the diameter and tw rxd/w)ok aa3n0a/;56 ,diihckq hyr/ ice 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 twice thvuvuu.f 1r kze08y5q: e diameter and half the length of wire X. If wire X has a resistance of R then kzv1ruuf5 u v0:e.8q ywire 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 u p1g5yb;f4xs piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistan spgf;y54bux1ce 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 mwtq3by -rtp , zv/ *b v)h;9qju*qb+ga brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a g q-wqb y gt/3v9 bzumbh;*t,+vq r*pj)iven 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 material.9wq :h-iv;aeg;i za j,uj t 5.j,sb*fx The length and radius of each resistor is: zjj,es;a a.;vi,i g : wbut9hj-5*qfx
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 resista 9j5ks2bm9n xvnce 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 resistor5b9 v2sknjmx 9.” 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 accompanyinghr/ kmq t(w4c) circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0 (4cktq)/m whr0 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 righp4 jkey,3p -cpt. The three bulbs 1, 2, and epc4 k, p3yjp-3 - represented 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 pjlca;o2/g2ezp* g e7 circuit at the right. If the current in all three resisto*gpcep ag 7jz/;leo22rs 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 ci809orf oljlb tog(o0x 2lsy+ +rcuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (l +(28l0g+9oso0lj fo b rtxoyor 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 statements is NOT t:w2en as:*(7urn39wfj m zlytrue concerning the simple circuit shown where resistors tuj9m *wwe l7sz:3a (f2 :rnynR1, 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 battery. Bulb X idv fr*3 nzmq m5e24p9as 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 best reprvmnrq95 4z 3fadm 2e*pesents 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 throug: 9+uwo m1ee2 rf 1k0ql;kpmmth the identified resistor in 5 seconds pr9 lfq+ em tu1w1moke20; :km 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 *wqcc r d)ns9o 9ydj7, the following simple circuit have the same resistance, which would dissipate the greatest powery cjw,c9dn7s*dq)9or ?


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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 t fypx38n0tnbvf,np:,)y ,dp,mbe; l zhrough the 6.0 Ω resistor itppn:,,effb 8ybdn 30n)p; xmzl ,yv,s 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 to a batterr)kymc9 8e2bi /9uww d.7a almy. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, andyk ai7.cd u mer/w 99albw)m28 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 -n,ar)p tdok (parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the canpdt(o kr), -urrent 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 volts. What is /j7 krhya+v5bx 8q+kuay1 *hrthe maximum value of the curkr*81 v5 k/ 7byrjy+hqhxaau+ rent 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 resi rct7mlde)fkb+99)m)o9 tsv2 q4i andstance of a 60 watt lightbulb designed to operate at 120 volts +bnfm9d ilto)tmesv4cq 2 r9)d9) a7k?

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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 currentl7.ps4 y)n at7d vyp 6off sn6a5px.l6 flows through a 4 ohm resistor that is dissipating 36 watts of powends54p)7yp.6 ao pfyf tna.67xsl6v lr?

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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 clot-f-dh h i6moz4hes is marked "120 volt, 600 watt.” In normal use, the curre -hm-64o hzidfnt 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 followinc 0l/n*km3s wzegw (- 3tzfvd:g resistances could NOT be produced by a circuit containingm s0ez*tkc:3f-wn /lzgdw (3v 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 resistor)s,lsd yao2g9s. Which of the following equivalent resistances CANNOT be produceda sd o2,yg9l)s 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 x- i*+x wlx*htdifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of totx-lxht+ ** wixal 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 p rzvscpc( :+0dr3h( o7 sq1kygower P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resistance of the battedc3z(0cv(7rs +:poyrgs qk h1 ry 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 resie(ew72uiik- n nd 4ywxt uy; 9hhn:x87imt70ystors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ok2iiwweh8n:77uuemx (9n ixh-;ny dy7tyt40f 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 qplk,9 koyur0a. 3to 7a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thatpaqk yol07.u, ro3kt9 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 jqb b*0oguu-hg /4 (vjthrough a 4 ohm resistor that is dissipating 36 wajg*gj4qo0-bh/ (uuv btts 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 heaevdg) jc gz,t9e t: 60lbuv.p1ter draws 13 amperes of current when connected to 120 volts.vlc e91g)6:tg. 0jvdtb peu ,z If 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 to keepag i;j9z0qn-(ogd6 rxof;s 8 g a 100W lightbulb lit continuously for 1 yq; xr(o;gfdg0 g6js9nai8o z-ear 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 curd5 v 2ffll+fj+rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best reprejf+ f 2vdl+5flsents 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 0i+)8ay tnhvgrated at 500 watts in a 120 V circuit. If all computers ar g80) h+niyvate 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 forpu6 . tjs;:ug6pn bzs1m a simple circuit as shu: pjg6 .szns;t6pu1b own 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 i, aom9j:36 kqwa2 knrto four resistors to form a simple circuit as shown to the right.9ak 23m:krq,jin o6aw
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 ape r*qa9ujodqy;3 .+ xre conn+o*e .qad3j x9qupr y;ected as shown. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an id0, ttvj c,y hof1j06kveal ammeter, a switch and three resistors are connected as shown. With thjkvftho0jt 16c y,0,v e 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 batter+kvnc*6a a-f dy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0dfn*+c6 aak-v 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 thu5t1hclfsq0 bl 3;vg9 y-(eo de equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical su1qbe(o9;yv3cfl hg-50 tld 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 resi/ hh0 1*rcl4)ap3wqcg7p nq x6zcxw.cstance of the circuit shown to the right with resistancxpq/c3qln.7g1 x6h zacwh 0 r4*w)c pces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo sp)qzdnlo9 ml:ii/kk n1):g-2nu4y ow shows five identical resistors connected in a combination seriesn -) : 4/pyoudnli)k n1s92qgomkzi:l 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 idso *z 20wt/fpzgpe.5uentical resistors connected in a combination serpufpgo .2se/5wz 0t* zies and parallel 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 i,ta:p -yk0e u2mwjm0 qdentical. Which bulb will be theqju-p,katm0:yew 0m 2 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 threeayd,7 8y*v7m/ihjw soiq6 2u a resistors are connected as shown. With the switch uayjq m,*vi7/27yish 6wod8a 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 swit w8x zwfu95cnr*ef6w 9*mkn, dch and three resistors are connected as shown. With the switch open as shown in the dd 58c w nke 6uwm,ffz9w9x*n*riagram 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 idejq)mpi f2 (z7, w4krc (sthv(oal ammeter, a switch and three resistors are connected as shq cz mvj72h ,wt4 irf)((psk(oown. 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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    总分:50分 及格:30分 时间:不限时
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