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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, a(l;ygu5 uwa( e7diz8dn electric current exists in the metal resistor connected to the battera8 ;zu 7weldu(gi( dy5y. 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 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 connected in parallel,( f,c/56lb3b khwx ini the_________each resistor is the same.c3w,fhi/ ixl 6b5kbn (

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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 lightbulb causessmxc 1h 3w9lo- the filament to become white hot, while the larger wires connected to the lightbulb remlwxc -1som h39ain 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 v mc88j f291tkdz:tjthousehold lights are being replaced with LEDs. LED is the acronym for which one of the following choicestzcdv1 jkttf :88j m29?

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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 areah5n(qdjci37 .zfj3 yu A. It is to be placed into a circuit, but itz.qj5d3 3 inyjfhu7c ( 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 material. Wire Iu2sxmse xn1 tt+hz26 /I has twice the diameter and twice the length of I. 6+m/1 2nz 2 stustxhex 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 +(ni43: o6 sxqaqtu camaterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would +6: nsa axt4ui(o qq3chave 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 piece o717 f zd8tijncf material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus 78ncf1 jt7dzie 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 brighj)(evmtao.0 jter 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 ( vte ).jjamo0given 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. The lenuf6ujt:f 5 xl2ifes/35h s-z pgth and ra f:stf2u5 3s xep6fj5lzhi-u/dius of 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 battery izh/xs iv+5s:/ufaa hoe 3t2i /n the following way:t +o:ax h/u3ssv/5 ei2za/hf i “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 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 cig 5p .3eqmahnyp4/3:oy f s0okrcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readin3ehpsy:pk.o/3 0 aq ogmy45f ng 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 showdeeoea( )i+b//yz i8p 6mgg*p n to the right. The three bulbs 1, 2, and 3 - represented as resistors ig/ bi8ee z6d(p/ipy +)a*eogmn 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 electrr ffm,u4jee7j6x1o y7ical circuit at the right. If the current in all three resistors is equal, which of the following statmf 7eyr jx174euo6jf ,ements 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 c/ m ii9)n42l wfz8.rvbldur *jomposed of 5 identical light bulbs and 2 flashl. 8/z2j*4lrvfi9)nwbm d riulight cells. Which 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 statements pqndt-v9* *l9b ic2ow17zhtvis NOT true concerning the simple circuit shown w 9ow-n tdzv*1h* 9c7i2qtlvbphere 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 battery. lkgcx .ns7 1w*irald+w4i(-dBulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected iwl74 k.n+wgs 1il*(drc -ax din parallel 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 will pass g usval7le9ee/34s9u through the identified resistor in 5 seconds o94s guae 37v/elel9usnce 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 ha4ael u.j1 :wwtve the same resistance, which wtle1u:aj w. w4ould 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 1sf(cr+l:vni:a +bcgqjp29l2:k ydi through the 6.0 Ω resistor is 1.0 A. What is the power supply vol p2vy :j9+: (2ncl1d lq:racg+bis kfitage 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 . 3(ox7tv55lyc;y ew7,kxxdu)qob3 /cxofw b battery. Suppose R1 carries a current of 2.0 A, wy/( y 3,l55t7b) owocxcu .xx7qvf ;b eko3dxR2 has a resistance 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 resist,dv-*vprad+*uz vh2 tors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. va2p h*r uv+-d t*,dvzWhat 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 volf4ms6)vm r pupp4y; 5vr59d skts. What is the maximum value of the cu9ru d y sfv6vs5prkm45;pp m4)rrent 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 resistance of a 60 watt lightbye4 l9zrp j:f- p 7iksl5kpk+5ulb designed to operate at 120 volr7j5pp sl9i5yf l4-zekpk :+kts?

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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 resistori kdsl 6ujy0g*.-c5.1-f qgb mp0nu ro that is dissipating 36 watts of power?uj o-r6y ub0m 5gcg q-n.s.f10k *idlp

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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 clothe2 kikf+n xdl)1s is marked "120 volt, 600 watt.” In normal us1 +dknixf2 lk)e, 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 resi bi5hj9* ;z62trjc 6xh *zoyslstances could NOT be produced by a circuit conta z5j*hr h6x9czy*jbtl i6o;2sining 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 thhr,c(aqksa(di:n v() ree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be proc(k:) (vh,qad (n rasiduced 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 val3coe;2ri9t l+h 07;bryaoct mues can be connected together in different configurations. If all three res9;oheo2 at; c0+7m trbrl3ic yistors 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 fs 0z6;vkv(bo resistor is connected to a battery, a total power P is dissipated in the circuit. How mz;o f s6bv(kv0uch 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 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 h- /l3h z7q-jdkf ,nxzcyq9i9 R2, are connected in parallel, the equivalent resis7d3y9/9zhq kz -ciq- ,f nxljhtance of the 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 12Ω when zfro5d5a)5x5q 4v e( bh c w1+rmdrv.goperating at 120 volts. What is the minx va r(bwhcr5g+dvqd4z5 )o1e.55m r fimum 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 otrx 4vmmy)tt)ga*2b 8j f-2pohm resistor that is dissipating 36 watts of power? 4 yrbamp -toftv2)tgj8)2m*x

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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 3,dkyubp/;rzid j0g3 current when connected to 120 volts. Ifd ijbr0,kyp3g ;/3duz 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 a+6 jr 3;skb0m4 lsbzdwould it cost to keep a 100W lightbulb lit continuously for 1 year +dkl3m;r 4z bbs 60jsaat 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 resultsqj5.p erj(2 fa in a power of 24.0 W associated with the bulb. Which one of the following choices be.faeqj 2p r(5jst 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 oi/a m1z0bi(nya8 lxt (f 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 computeiztlib m80y 1 (ax/(anrs 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 connectemgbxgl/45 kfi0m5z 3wq of 4.bd to four resistors to form a simple circuit as shown to the righmz5 5 lg x.4g0/mf3iq4bo wkbft.
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 four resistors to form a sie7/:mo fng6 uqmple circuit guqm: /7fneo6as shown 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 amm biw mngu 73:eu n0ws6pqq(d*5eter, a switch and three resistors are connected as shown. With the switch open as shown in the digds pem(inwnq3q7*u:bw 0 56 uagram 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 idealkgwr;3;78 cu4 owfl1tfi: dzv ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 3r4cdlffkwg;;1 i8z uo 7v:twamperes.
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 ideal ammeter, a switch and three rex 0lbgbnkzhv*)f8: c3-4imlu sistors are connected as shown. With the switch open as shown in0 mucz)kbhx-:l v3 *4 8lgbfin 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, wh619 lu tc8t2oy-hqibnq1ca 6jat is the equivalent resistance? Assume that all wires are ideal, the battery has noyc6u9a t16hq2tlb oc8n qj1i- 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 re/nq1kjyhtl 2egah)g )r5/( lv sistance of the circuit shown to the right with resistan/ hkvna)g2) / gtj5rqeh( l1lyces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resisto f8)q7vmoc f6prs connected in a combination seriesvfco q m768pf) 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 connected ilgj5 2p;zi -nu7b 8;hxjr fveq5bln 4/n a combination serii5zf- gjhnpvu 75 q/ e2l;4l8rnb ;jxbes 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, alodg*b-ye fn()z y skbf)+6 d-wl of the bulbs are identical. Which bulb wz6n)- k)+wbgfd(od fy* byse -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, 88zc u) x zrk7:ww xy,xbv/*xjan ideal ammeter, a switch and three resistors are conne:8bc8zxz wx)v,y u7jw*rx/ x kcted 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idew.mwe04 w ffwsanl)f;3y ce 35al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter wmw0a33sfewncl) f .;5w yef4reads 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, anu5y6 at (e3eba ideal ammeter, a switch and three resistors are connec(5ay6e te3aubted as shown. 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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