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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 circui3wj-+zzio 7yormmy :; t shown, an electric current exists in the metal resistor connected to the battery. Which one of th3; yoim7m-jzy +r:w oze 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 parallelhg59cx+,cu;ujh hc/ e, the_________each resistor is +x c;uhuhe,hg/c j c59the 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 thehx-tadyc6 imi.* r1)x thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thistx yac 6m1 )dri*i-hx. 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 replacedxe-l nw .jhz.b3j)c v1 with LEDs. LED is the acronym for which one of tc.)zejwlnbv 3-x.1h jhe 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 graphiv/pf6oagvwj/,5k y kqjykf a29/ v:y4te resistor has length L and 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 nep /v9wavky fj/y42 gkka5y:j /qf6 ov,w 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. Wi if,papuzoe dq,j8(;8+p:+uy9f d 6km2rajl ore II has twice the diameter and twice the lengtpa8+jjafq,yud8 i zd (fkerpmo2lu;: ,p 69+oh 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 twicbnv9n.cqkqi yr5;0mlom+) d . e the diameter and half the length of wire X. If wire d0 yi.qn)+lq bmc;km5nv9o. r X has a resistance 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 and radius r. This piece l)q2bcu0kjn6a ccc0r dv 2;c5of material is then drawn so that itccqark2 )cj n;c020d 5v6b lcu 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 Edisooqw:iztigys2/l9 y(3 n wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in w:qlt/iy2 ys( 9og3i zorder 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 resistor,dyipwq 6;k)x *gtu+ds are made of the same material. The length and radius of each resisugd)k ip;6dxq +wy* ,ttor 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 ro o2,mfd8 rq4jesistance R, are connected to a battery in the following way: 4,moo d2r8fqj“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 voltmeterydgk9*(lxg :kwj() ck in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal*ck:x)kwky(lg 9 dj(g 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 shown to the rate*kx+w3 ywi ;8juv q0u8s-n ight. The three bulbs 1, 2, and 3 - represented as resistou;w kv3wxit j+e 8-0qas8*nuyrs 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 the47:qra1sb nlly1;t- *zgb gn s right. If the current in all three resistors is rzg;n1lnagsqb1*4 t ls7b: y- 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 rpqtgo+m* :f d1py jm)4epresents a simple electric circuit composed of 5 identical light bulbs an :)o1d jm 4pmfqy+tp*gd 2 flashlight 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 is NOT true concerning the simple cii6t8( aqybinqhl g)s e632em7 rcuit shown where resistors R1, R2 and R3 are have equal resistanc2ba 6tq h)qmeisey l87gn3(i6es?


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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 connectjw;;ati m+dq 6t3 nd f,v6gep5ed in series to a battery. 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 chviet3 pf;d w6a+g6jt,dn 5mq;oices 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 resistoyju)nrtj7q+7khl2t2, n 7s6j5 fwmw.t ius5sr in 5 seconds once th i ln., jj2275 yf )hn7tw6ut mr7sjsu+w5qstke 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 rfkfn(7g1x21i yro g e9esistors in the following simple circuit have the same resistance, which would dissipate tey71f rgxgn92kf(i o1he 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 cqo.zk1 mii(1q ircuit diagram, the current through the 6.0 Ω resistorikq (o11m.qzi is 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 resistor5;;i8 ik/f vs c6pq+fh3r cbcas R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3v5 hcq;c8 +i b/s k6;acrpf3fi 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 parallel to a xr5lb0x k*gxp:yx,nvode(.3s 5.b rb battery.5*( 3do0rb5 xbg.x ,xnyepvlksxr: .b Suppose 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 wat:* fielik ;ii5a ;5xadts and 120 volts. What is the maximum value of the current under these conditions?x;fdei5 ; 5kiii :a*al

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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 q n,l:jlqe8y* of a 60 watt lightbulb designed to operate at 120 nljy :,lq8*eqvolts?

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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 7 bca7vbnv-/og(i 1xe is dissipating 36 watts of (a in e7c1/bobx7v gv-power?

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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, 60 q hz/3qsnem(r ypptqd.f j)6/2e p;.w0 watt.” In normal use, the current i m/pjs q her6e.(3.2dzqppnqt y;w)f/ n 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 a/dv3;iekmbs zc 2 r*(a circuit containing only three identical* sck b/;e3 2ma(rdizv 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. Which of -f6 ;m*l. jsfewyx2cqq7)k yd the following equivalent resistances CANNOT be produced using all s*yckfqj6-x2dqf lywe 7. ;)m 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 differy5nf 0w 2i75cprd./ldrfa6l6 ota v p9ent values can be connected together in different configurations. If all three resistors are used in a circuit, how manfa95 dd6il./t67rv ay2pf5r owcp ln 0y 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 pow 4mz,yfk0ikuw i *))eser 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*)z ek0 uwkiy4),simf 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,,d5 c77xh otol are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is t5c,h oodx77lcorrect?

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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 resist mf)hlwm;: ly4ance of 12Ω when operati;h m lfyml:)w4ng at 120 volts. What is 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 diod1 ena j ehki5uq4vj3c-69x5ly69as ssipating 36 watts of powera nxd 5uea6l1i59ce 649 vk3qhjosjy-?

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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 connected to 120 volhms vokbcwj0.:j ;v6e kul4qj,,(*wa ts. If the price o:vl;k,q(v4 *wkm u6oc jw,jabehs. 0jf 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 lightbulb lit 5u0ydhfn8 4if continuously for 8fi50hyund 4f 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 power of mmcci+/ho(1lz+a-o n 24.0 W associated with the bulb. Which one of the follocnac/1+ ol oh-z+(mi mwing 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 ownyc1lu+oy /8l zs a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circui1 lzyoly8+/ uct 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 t)( q4hl 5o3nfmgk 0gfbo four resistors to form a simple circuit 4qhgko0flmgf5 b n(3)as 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 tr*o n 0):wmzre5r-e ddo four resistors to form a simple circuit as shown to tho m-) ez5d e0rrwrd*n:e 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 swit/fafoer6 tx / 6nhtx:)ch and three resistors are connected as shown. With the swx/ /fa6tx) :rne6ftoh itch 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 ideal ammeter, a switch and three resistor)ti gibc;cg;ax++ ch/so9 (pts are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 pc+ t;9ica ih/;g t o+b(g)cxsamperes.
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 thu3 qhc. (f,myo tzup59ree resistors are connected as shown. With the9uy.h tpo3umfc,5z (q 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,6om 5lqt+;9vu fhy7fk what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identicalm;+f 5oy7uq 6h9tflvk 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 xaghq qjw-(6sm26n /j of the circuit shown to the right with resistancgjj amw 6n-s6h(/ qq2xes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idkmd6r3 /kk5 yjentical resistors connected in a combination series and parallel ci kkm 6r35dkj/yrcuit 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 resish8x.5 q+bk- *xlt8ra,pepfg,j* rtwhtors connected in a combination series and parallel circuit to a voltage sourcek,*b-qrte8*w atx p hf+phr,.gj5x 8l.
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 ofak(wwjh b8er: 9b )uz5 the bulbs are identical. Which bulb will be the brh9ubw )5a:zk(r we j8bightest?


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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 threh dkaeg68.1 d,orghe6e resistors are connected as s8d,drk.6heh1g ag6 eohown. 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 ammeter, a switch and three resist*pqjb /ov,o66qh u.guors are connected as shown. With thjovq og6u.p ub/*,h q6e 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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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 res*4 zjgw4gr 7i89lp.ox utx)ouistors are connected as shown. With the switch open ax7x.u i gw)48*gozj4rup9ot ls 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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