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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 cuv wabdiz7i 9i j **hxla0-ci,8rrent exists in the metal resistor connected to the battery. 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 resist9iada , x*i-*7zb0i cjil8hwvor?


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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 na auqm49oas. j68h ik7-mfkm3 2dc 7lconnected in parallel, the_________each resistor is thkso8jhaaa9-3mdn77mqmu 2f6ik .lc4 e 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 t eis/m3v v1jy/he thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coe/ ms/ji1v3 vyoler. 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 househok4axo7f1d d7 jz*hpnf8l 46 r 6uqke5tld lights are being replaced with LEDs. LED is the acronym for whicj4f* 66 78dor 5kpkqxzedlh 147fn utah one of 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 and cr7ns dlh-4v wt*oss-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that d*h-7vnl4tsw 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 math;/tem* .pbqaerial. Wire II has twice the d;qa*ebpt/. m hiameter and twice 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 twd4ch js ;;o*bjice the diameter and half the length of wire X. If wire X has a resistancb cj4;oh*j sd;e 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 len b///mvijdh* n4 wq5zpgth L and radius r. This piece of material is then4 /h5 b/j vw*qdzip/mn drawn 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 nr)isd 71 vx1nto make a brighter light bulb. He decides to modify7d1 )is1nrxnv the filament. How should the filament of a lightbulb be modified in order 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 s8pxa+2l 1 ue7 k)f:6fak ibvz))qxafmaterial. The length and radius o6)fi xb afx) :vfqak1+2k 7uslzeap8) f 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 in tqt qd-y q28vf3he following way: “Two revyf8qq 3-t2dq sistors 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 accompany cjn:t3yq.i5:kt+ ewring circuit 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 reading is mot crjnq.:tk3+: e 5wiyst 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 right. w0z q l* n dbixy(d+bq/(c:f.uThe three bulbs 1, 2, and 3 - represented qqx*.0bw+c i (:ndflzyd(bu/ 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 simp bqtmb+xi:mj+v.8c uf*(xwa( le electrical circuit at the right. If the current in all three resistors is equal, which of the followi(+:xwi +vu8q*j. b t b(maxmfcng 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 ea)6pzngi*f oj ro/ )6alectric circuit composed of 5 identical light bulbs and 2 flashlight cella/f6 g)6 jn) azioopr*s. 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 i els 6b(znxzi0,(cobb(+.; vp.ovsa is NOT true concerning the simple circuic.vsbl6(vox.+0pb zib(; zi,sa (en ot shown 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 connec(:y(zyr6+qjyf+uj s9 4ii* w bmh q(qxted in series to a battery. Bulb X is brighte6qw:yy + (+jb*i (u hzqf4jxryq9(imsr 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 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 re.iw-iy( 35ijr-yn5whuwrny) sistor in 5 seconds onci-ywrrw(- jh5iu )w.i 3nyn5ye 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 tk.uf7 spw( 3czhe resistors in the following simple circuit have the same recf.pu3sz(k7w sistance, which would 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 through thq1,godev asjl.8/o 0 je 6.0 Ω resistor is 1.0 A. What is ,geld0ojs8./ja qo 1 vthe 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 batfrbiv.xxo a(j*ez,8n-;oe - q ys,;i ytery. Suppose R1 carries a current of 2.0 A, R2 has a,av*q xo ibe8r;y .-z syn;o e-x(fi,j 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 resistors R1, ai+ ,kvmk/*p d0+ ;a+hoemkdtbd 9cc+R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6hkdp9 mkkvdm++oea+0+/ b;cat ,ci*d 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 i/onbv;tej 1dr)j p o4(s rated 1200 watts and 120 volts. What is the maximum value of the current under thesebovjd4)j/rt(o n p1e; 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 lightbulb designed to operate at xc*qe / 5q,jza5yios u63.vfw 120 volou/qazv*s3 y,5jf.ew 56xc qits?

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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 a18 gw+3 oddvch 4 ohm resistor that is dissipating 36 wat +oh318dw dcgvts of 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 voltw( i,d) 4gsux dinr*-o, 600 watt.” In normal sr dgnxiu (*wi)o,4d -use, 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 resistau)9rc5aa +f ts3rky/*t y*/amm ez5l6 f+ge xences could NOT be produced by a circuit containing only three identiclm9x ayt +r t+ 6za 5ky)/sf*g5f3eu a*cmere/al 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 thre+y4bmj9(be k qe 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produc4 (j kebyq9m+bed 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 1c5bblry2*k ts9gc6+t lbj3z in different configurations. If all three resistors ab 12gjt6b3z+rl5kylt*9scc bre 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 resistor is 64kzm h;v:j s7l;tm ylconnected to a battery, a total power 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 batteryhyvjs;6km7z:;lt4 lm ? 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 connected in paraller9xh/lxf*g(k l, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is chx* lkgf9x /(rorrect?

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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 s0j/ zax rl.j3e(wls 0guch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum xl0(lza.0sg3 r /j ejwamount 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 dissipating 36 wa 4.lxzcd)0 io6a azm we.jwz(7tts ofd4wmz o .0aix7eal6 c .)wjz(z 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 ebkb2h x,l 7)lil3ox8z sx9ic4ryq, ,current when connected to 120 volts. If the price of electri4x3hxlx)b, zr9k s2yqbec,il7 l 8,oicity 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 qyx b 6(68/)jyh ,vsjltjq/rfkeep a 100W lightbulb lit continuously for 1 year at a rateq,r( y6/b8s6jf j/jt)y lxq vh 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 a78f05oihy nnof 24.0 W associated with the bulb. Which one of the following choices best represents the resistan80 in5 yoh7nface 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 famiiq1eyoqrnrm 6j52 .cv/p/uk2ww:o/p7 et b 9 sly 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 oesjp pv qy /m/:.te6ow7wn22c1i5 9kubqrr /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 fouj.nvn;zra() k r resistors to form a simple circuit av ;rkz).a j(nns 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 foh08wrjv x8m3 our resistors to form a simple circuit as shownroj xwh3088m v 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 ideaua 4yf0il t /q6myl* /acd)pq8l ammeter, a switch and three resistors are connected as shown. W8dmy*y f) uatl c4l0qp/6/aqiith 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 ideal ammeter, a switch and threetupp nac69 + b,wr8ks9 resistors are connected as shown. With the +rk p6tpc9ws ,8na9buswitch 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 battery, r)wr 3: 0 m.ao0fdijhwar5d9 tan ideal ammeter, a switch and three resistors are connected as shown. With the switch open asw9 fhd5.d)rmoaa :0w 3jr0rit 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 sh-cm-ofo:sojqp6 1 ng-own to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal oc j f:-6om-q-no gps1resistance, 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 resistance rfk uk,wuzu d+r: j019of the circuit shown to the right with resistanc1k,:d z0 jur9+wurk fues $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belows4o x+tzar. t, shows five identical resistors connected in a combination series and parallel cots+. x,4zat rircuit 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 connr1;a/c1wcn 5 rke5;w2gxn vtjected in a combination series and parallel circuit tokr1n2c vcx 15 ; tgnj/5e;awrw 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, bwadzp k v-a;1.ou1z,i,zm j :odlb2 1all of the bulbs are identical. Which bulb will 1zju2,ao1aidm ,;z.o d1bwlpk-bvz :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 ideal ammeter, ck: mxpthc2vx 050om* a switch and three resistors are connected as shxkp5mx2m 0vo*:ct h0cown. 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 thren,j9og sr9ji7i3-z rfe resistors are connected as shown. With the switch open as shown i f9jir - 3s7zr9iogn,jn 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 ammeter3 m6(ylqlip mh40o*hf, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reap i36lf*h4hl0m mo (yqds 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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