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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 u7 gr r79*mk0go 9xr egw0wz1texists in the metal resistor connected to the battery. Whiw9t mzgg u91r rek0 7xwr7o*g0ch 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, q1, m1qjjdqs+ bot(ek)r ;n8b the_________each resistor is the same.q(,1)d;+ bor qjbqemn1 t8ksj

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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 f f0:c mmckxr*j, mq4e/7 1miryilament wire of a lightbulb causes the filame emrkj1m*70 cfqrmi4c x:m,y/nt to become 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 are being replaced with LEDs. LED is r u ,z,ct p)/m *zkslp5wz 31*ins/meathe acronym for which one ozs/mezm**)5aitkpczlw,,1u / ps r3 n f the following 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 y0c.,t dc2wpfxf( u5 qtp r*1jand cross-sectional area 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 to the old req1uff2t ypx*cc.,r j tpd (w50sistivity 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 m/ xd3gwlqia5 hsvxsvzm),8b e4/pew ,)*r*v w ade of the same material. Wire II has twice the diameter and twice the length bqvwsa/xx) iw4 zgmel* 8r5 d, w h*pev3),sv/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 z7z rwpsp9)*h the diameter and half the length of wire X. If wire X has a resistance wr* pph7z9)s zof 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 and radius r. This piece o hi b/)zs37evwi+kgx2y fm1t(f material is then draw3vh+b/wt(xi2iz ym )gs e kf17n so that it is a cylinder with new length 2L. What 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 mc:0/ x-v0i qu:uoe xhyake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order:0 e: -yxc0qvhuu/iox 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 resistors are made of the same mater tgz,x4cg ;2nti(6 nnlial. The length and radius2n,lxcgnz gt nti6 ;4( 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 )b8qr5gvq8p e 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 resistor.” What is the equivalent resistance of this arrangement of four resistors5rq8v bp)qg8e?

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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 cptqq ;/tr;9vv*. nfan +yq3 anircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA.pnvn;ty nqaa/t*+39rv q f;q. 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 compou0, v*;i d2onoxd.fqkrnd circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resrvid ,o .d 0*kx;nofq2istors 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 electr.df (/pt2+gfytmt7ydical circuit at the right. If the current in all three resistf2ypfd(tmy7+.td /g tors 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 lsy2 b i;fj7p5represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight 7i2js f;lpb5ycells. 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 is NOT true concerning the simple cir cu (b9h)*i;, hs kts zypvnwx+r;6v2icuit shownz h6i2+nbs*v(i pcyr;t;k)uvx ,w9 hs where 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. :5/k dg qpem*sBulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are co gqepd:ms*k/5 nnected in 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 through the identified resistor in 1k mh+s6v ;-)mzayu)otaz4f l5 seconds onf1u 4symatv6h)o+az -)k lzm ;ce 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 m1 m*)gl;f w.wdk dp5l in the following simple circuit have the same resistance, which would dissipate the greatest power? mg fw.p;*dw kd)1m5ll


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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 Ω resnaew7 9o c6jv8istor is 1.0 A. What is the 89cajevn6w o7 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. Suppip/ :)pzf225cdow c qp9r6x+wcwa;ep ose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the vol c92i; 6)dowefw2q5+wppz/xp: cra cptage 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 resistotscmysk;qjx o xqs:5 ;*+o m9f7;4vi zrs R1, R2 andR3 are connected in parallel to a battery. Suppossc 9s* yjx:;zkif;to ; v+mxso4mq7 q5e R1 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 is rated 1200 watts and 120 volts. What isv/5+om *kat vd the maximum value of the current under these conditions?/*k dm 5otva+v

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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 1i yjwqe9zz4,uj/ssp y,* ;xb lightbulb designed to operate at 120 voltsze, yj4ybq;iwu/ , x9j 1z*sps?

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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 dissipating 36 wxb u(bl;w -+k; hw9dx5 lxsj8iatts of power?( bl -9wxjsw;uhk +;xb5ldxi 8

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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, 600 watt.”vw d;/jg39d t77dlboj In normal use, the curren3gld w 9jjto/7vd7bd;t 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 bj a20 oyy7p;cz(gxqc8e produced by a circuit containing only three identical 6Ω res qcx8;a7 j(pyz 02ocygistors?

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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. y3yk /r/3xd eiWhich of the following equivalent resistyy3/d/ r ek3xiances 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 together . rl052j3 u(4xa5n7spvutxbfh p*vjv+d f:e n in different configurations. If all three resistors are used in a circuit, how many different values of tota nr0pt 7esvh5b5lxf nf j.* ju vd(3u24v:xap+l 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 i -zxud7i 1mcp)s connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n)mic1-xdpz u7 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 R p lj2l308dmqd94f(ajwmaz *x 2, are connected in parallel, the equivalent rlaz w293(8mfxj4ql d ap0jmd* esistance 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 mp1 ew6axy n(3x odbwym-7:7 fhwi/7q a resistance of 12Ω when operating at 120 volts. What is the minimumm1 weh3q7dofnmyawy x -7p6:/( b7ixw 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 dissipatib ngeq,m1:evj1wj*h +ng 36 wat1jw1g*jnee h+qvm, b: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 heater draws 13 amperes of current when i6rc :i m/:tgoconnected to 120 volts. If the price of electricity i/:io6m tc ri:gs $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 conti+p6.xy6hea3c mi)t qxnuous+t6 yai.x6 )qc p3mhxely for 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 lightbulb results in a powerjyaj8s39xtr6 of 24.0 W associated with y8t6jx9a 3rsj the bulb. Which one 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.jk a x;2qhtod,6ciref6m73q 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 207.crhq6 fj amd2;oqxkt 63ie, 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 siucvi ql86b0nxzt p1 ).mple circuit as shown to the rigzb10 xq n86iclutv.)pht.
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 aek o(dfa6z ( l: acyx7u17vl4i simple circuit as shown to txik fdal 7 leo1 6:7yvz(ca(u4he 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 threez8yt(1x, qv zuors;pj8b/. xs resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads z.;rs uxqv,(yspoz x81bjt/8 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 fa 3h+,pj9 cedideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagre,cf3 h a+pj9dam 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 ide 9zut 28zczjs;al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesz ;8j2ct9u zzs.
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 equ;vkyzb/h )e(pc g +;ujivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. uvg zj h)pbe+ k;(c;/y


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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 resigp2pp9up,5t dstance of the circuit shown to the right with resistancesp5gpp9dp t2u, $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in ax xlowmo4wu wk/* k9wj5e :6a+ combination series and parallel circuik 5o46m x:wo lwwxw9*au+ke/jt 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 in a combinatip( d(m/ffsn 8p, 6wqjkon series aspd p/j6n f8kwqf m((,nd 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 .0 zuva-b0j sfhnsm2 ;of the bulbs are identical. Which bulb wilv; aj s mf0z02.s-bunhl 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 idev;*,df 7p,qljz8:n bs r4ke n1 t1gzuxal ammeter, a switch and three resistors are connected as shown z;vke1 t8zsf7ujq*1,b:nx dgrn,4 lp. 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 ammetp:1a owc s**h+2zt.wct dst3ler, a switch and three resistors are connected as shown. With the switch open as shown in the diagrtt1d hzst:pwwc s3c* .ol2 a*+am 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 apg er4:s7gxf 4*o;ikmmmeter, a switch and three resistors are connected as shown.ms :r g*fg47x oe4;kip 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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