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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 r mrg( 4d:itt-6l) sc3zrp.abyesistor connected to the baty3r(tit -bgdmr.cl4p:)z6s a tery. 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, the_____6ai- 1x)o jflfwn 4oi2____each resisto2 of)ao1-iif6nx 4jwlr 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 thtm/c l2 rrrd155uvhw- e thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens bechc -/tm512 du5rlwvrr ause

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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 replaced with LEDs. LED is;2oy,ohfd5 b7(bu)id s .z shq the acronym for which one of the fb;dizhsy2(7 h5 o)fso.b,qdu ollowing 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 areao 2 bde,:( tkbd(8ttxz A. It is to be placed into a 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 t txot b(de ,2kd(b:zt8o 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 sam3 sk+b-aafg1se material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II h+ a1bfk3gs-sa as 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 the diameter ands+cy7g u1gz 1x,l0jrd half the length of wire X. If wire X has a resistance of R then wire Y would have a resistanc+gxjzlsd 01,c7uy1rge 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 of np p2qj 1/omjou,pc+-material is then drawn so that it is a cylinder with new length 2L. W+qjpcop,1mn-o/ u j2phat 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 decides t:f5 zglh zd14to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulz1 f:54zd gthlb 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 made ofxnve1kpwh i.c:a j 88* the same material. The length and radius of each resistor isak h.*jpiwn8 vc e8:x1:
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 -m7 hw(lz.h as:w:47y,tcyd yi /gtgdconnected to a battery in the following way: “Two r4( :hd . d:ywtwhacgi- gzs/7t,7lymyesistors 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 circuit diagram has internal resisi* mdc0id3/ontance 10.0 kW and the ammeter has i/*0i3cmondd internal resistance 25.0 ohm. 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 shn 55oxml 1n9elown to the right. The three bulbs 1, 2, and 3mln1e 55o lx9n - 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 k* q b2qrzt-.0vndck)3hy 4ahcircuit at the right. If the current in all three resistors is equal,)v yh k.kh40qdb zn3*q-rt2 ca 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 simplcsdek (sdp/se: 5l 57(8sk tkae electric circuit composed of 5 identical light bulbs and 2 l7sk 5kc es (8a:espskdd( t/5flashlight 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 stateme g*iqbq 4igluh6t;*) a9tjk3h nts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have*)3 * t ghqbahi4u6g;j k9litq 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 battfiy3 fw9 xb7t3rxjb 4-ery. 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 batty 3rb -x3j7tbw49xffiery, 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 j(z/ +fu9 dekt+wz ab(pass through the identified resistor in (z+a/f9uk (w+bd etzj 5 seconds 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 resis3hj (h x im(etnsd0;5btors in the following simple circuit have the same resistance, which would dissipate the gs b((dh e; mix530hntjreatest 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.n+ );abfukey6) u8f ap0 Ω resistor is 1.0 A. What is the powery6) p)a;n+af kufeb u8 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 confe w 0,yy-dc h(db32yn; vbl,bnected in series to a battery. Suppose R1 c,vy;bc 2b wy ynbh3dl,e-(df0arries a current of 2.0 A, R2 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 differen4t o(rqn5 0y m,y3xxsi zl*zjx7 )dfq*t 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 is the current s0xm5 *)qj*n xox7z yd(3 qf4 z,yltirin 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 tw r;8c3zwvu9; c36pq2f b lvmis rated 1200 watts and 120 volts. What is the maximum value of the current under these co;; 6bfup33v9qwtzr8clw2mv c nditions?

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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 3 h/+7h,wgrbzm7/iy jtpq. xy to operate at 120 7,3z .q/jb hm7xtphyygr/ iw+volts?

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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 ressk /i )sx *+3tcjn;/efhrmr(xistor that is dissipating 36 watts of power?xtfe/sx /rc+j()h ns k;r m3*i

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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 clothes is marked "120 volt, 600jv ;9: y( xcx94rvzqeo watt.” In normal use, the curyz;xqv4: e(9cxr j9vorent 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 93b 1zf, agswcfollowing resistances could NOT be produced by a circuit containing only three identical 6Ω resz,b gcf319w asistors?

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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 th pl33b,uw *hqrree 1.0 Ω resistors. Which of the following equivalent resistancesw pbh3luq* 3,r 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 value 3aa2ypf( c7ljs can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of 3( 7alpya2cf jtotal 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 conneq1m5p 1y oque9cted to a battery, a total power P is dissipated inyoq 5qm e1pu19 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 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 R2, are conir k:wkh;j q+, 7n8fbvnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following s8,j bn kv7f:k+;h rwiqtatements 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 ad 0,j3cfe5tf r resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kfe dctrf 0j,35g 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 dissipating 36 was-.vq8iq ep *8stt2evtts of- *qt88 qs.vviete2sp 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 cu-9cn7y bp+i0 r nboiq2rrent when connected to 120 volts. If the0rc nioq-2np7+iy b9b 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 keep a 100W lightbuzi0x lfhdi.63 lb lit continuously for3hl dxzf 6.ii0 1 year 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 lightbajyuo1h w08 o4/j m6wyulb results in a power of 24.0 W associated with the bulb. Which yu4om86/yj1 ajw hw0oone 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 computer r/ 9rs1egn cy/37roheeated at 500 watts in a 120 V circuit. If y s/ 1erconh7e3r9 e/gall 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 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 resistord.cr eb::jd43lzj-faf ekxahj7 p--- s to form a simple circuit .dja 73- -l p-jafe4j:heb-d zrf :ckxas shown 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 to four resistors to form a simple circuit deq25bhv2b **tvb9p e rz9q;bas shown to the rb*2*qv e 2qh z9rpt d9bb5e;bvight.
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 threif-q, 0en)zjn e resistors are connected as shown. Wi je-zqin f,0)nth 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, ae3 gujo9s.wf 8lyz( l+t0oa/tn ideal ammeter, a switch and three resistors are connected as shown. With the switch openj/o(3u.aw tsz0 tefo+gl98yl 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, an ideal ammeter, a switch au fp/a44vqv.5m 8wu tund three resistors are connecte8uamtu wvq.puv4/ f45d 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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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 thxu -59 jvh(yvpe equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, p -u9jvxy5(v h 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 resistan0v ry )o8zlm)n 6qo xhdo3yc23ce of the circuit shown to the right with resistancl )x6o3vy )2n3m0yqdz8rhoo ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re4r +fo3 e0nysw 4xq1ndsistors connected in a combination series and parallel circuit to a voltage soury34wf1sn +40eq xrodnce.
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 conn c;km5oh ;i2qfected in a combination series and parallel circuit to a voltage source.; 2 ckqoif5mh;
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 thk5vjpixk;6x6f. h 7.r:g ,gwc*jnycje bulbs are identical. Which bulb will be the br , hv.jxw6n xcj;7 k:6jr p5gf.*kicgyightest?


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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 amme2 / 9wgrphnsuw54k x:yter, a switch and three resistors are connected as shown. With the switch opyp4w hkngwur92 s/5x :en 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 gnsksxh5:e94j ci c t6p+ ::maideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram ecs a:scnkj65 9 4pgxhim::t+ 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 resisto21iby bvrnih2xcbr zo+iv q)) (b37m7rs are connected as y xc2biom77bh(brvqir 32zn v+1b)i)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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