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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 showea6 oko/ayfqj/g0o4v z x+(*b yjwr*:n, an electric current 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 t/6 awbgoy*o jfryje z /(o :x*0+va4kqhrough 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 concan wykel ,),4nected in parallel, the_________each resistor k,ae4cw, n)lyis 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 the thin filament wire of a lightbulb)-q rji-.f 89acb;ag 4i1s i9wr vjszd causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This ha 4rs cb-dvz9w.-rf91siaai;j 8jq g)ippens 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 beinhxb. oj0r:wc xju90j/pay/dk)gi5 2 fg replaced with LEDs. LED is the acronym for which one of the following choices iohdkja/09jc ):y rb f0g wp.x5x/2ju?

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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 area A. 9+4dg-ec( josz w)zniwe ;u6v It is to be placed into a circuit, e 4c)v +;szedz jog6wniu(9-wbut 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 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 sammtb9rpgq jqle, 5o; 8.e material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hasm jqq. 5b8;lepg,or9t 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 oaajsx1 c u ;pc:w;6k/zf the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R th/pc ;sj6x1k;uzw ca :aen 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. xeg+ f3 ; wk c/pfjk2afq,vj21This piece of material is then drawn so that it is a + j21q,j wkfgv2 xa;fce/p3kf 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 make a brighter light bulb. He decides t+j3 (plh85wdvu c ;ftco modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more ligv;w c5p (uhc t8d+f3ljht 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 ma9:u.o 7rlqbbr:bft/ a de of the same material. The length and ra b :q7r9lrufb:/.otb adius 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, a,wi )ebyh/z dd.h0z p-re connected to a 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 fohpwizzd deh.,0b /) -yur 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 resistajxqt k6evh/6c 2 xy bcw36h:*wnce 10.0 kW and the ammeter has inb6k t c6qwvhc:*xy2ex36/jh wternal 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 righm7 nm nj.:m7ert. The three bulbs 1, 2, and 3 -menr. j7n7 m:m 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 ciz8tjct8a 1bt nb,c,i m; uzd(7rcuit at the right. If the current in all three resistors is equal, which of the following state;(jd8z 7uz1ccttm ,,ab in8bt ments 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 com fc 0l.e7sffge/:;/n7 ni0 rz/kprav cposed of 5 identical light bulbs and 2 flfr0sr/aczn7 e7en/ lg0pcfiv.kf /;: ashlight 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 sta(3b dsw+o5)j (au qqmitements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistan3b(iqqo j()s+mw 5duaces?


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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 coo:h )a+f ,b.krnzozpr.:et 76jtb0t onnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit eljrzpatoe7)tbr:0:k o6,.h+f nz t.b oements 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 p8+ki -zc +g9o 4algcsyass through the identified resistor in 5y oi8a+sg4 9zc-+ lkcg 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 resistors in the 1x7z) nz.e*0hnvmmnb following simple circuit have the s0b1 nhn)zv nxz. m7em*ame resistance, 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 accompanyi 2cuj:j5y l;ejng circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplj uj2:ej5ycl ;y 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 R3o1 ci(pp w,bq: u7t6a5pp)dt c are connected in series to a battery. Suppose 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 vo,a6 qt7tw: p o5c)(pb ppud1icltage 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 connecteddnb9 fb9.hg *j in parallel to a battery. Suppose R1 has 2V across it, R2 =* 9gj 9bdhfnb. 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 , ,t,8t) ey/d qdde/saar.kolf6e6 qjis rated 1200 watts and 120 volts. What is the maximum value of the current unk,/.ldsd6 eodtr a,q,ja)et/6qfe8 yder 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 lightbulb designed*ml i7prmxf2(gt: ;vq to operate at 120 : (pl*m; vxfrmgt qi27volts?

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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 thtn klxtof-)x *fmh1br2;d l80 at is dissipating 36 wat8-m2* xk; ot )lrf xd0bhf1ntlts 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 volt, 600 watt.)zd .r2wus ee6c-9ltl” In normal ) 26rw dllsec.- ue9ztuse, 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 fol z7+u1of,hzxz lowing resistances could NOT be produced by a circuit containing only three identical 6h+ofux z 17zz,Ω 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 the fol3pshgu4l) 9pmip+0 iryt0be0 lowing equivalent resistances CANNOT be produced usit9pp0e0 )ih sm b4gylpiu 03+rng 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 connecupd ;y./)bc,x rmwrfst 3h3; zted together in different configurations. If all three resistors are used in a circuit,mfsw ;yu/zb3p3ct. hxd;r r), 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 d.p7n swo1skcl7 qz9if *v-m 2connected to a battery, a total power P is dissipated in the circuit. How much total power is 2v.pzl1 in7sf*q7k d9w -scom 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 resi)9btf(g(vjef ++o;2v wpi d xjstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follfix;)bpdejv (v(+9+wfjo g t2owing 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 eonvn)1uju5 3gws5d88c :o7m 6qxvpp of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water f:enous g)vodxn5p681jw v58 mq p3c7u rom $15^{\circ}C$ 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 throu bi(ly+yd pseul73()e gh a 4 ohm resistor that is dissipating 36 watts of powerieyy ub 3l(sl(7) dep+?

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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 whef gd)mhd:ruwq c:msly mf) . cr36l9/)n connected to 120 volts. If the price of electricity is mchs fmu:9cqdm l)gy)6wd/r. rfl3 ):$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 tsb9u0x aou5u:o keep a 100W lightbulb lit continuously for 1 year at a rate sbu:u 9oa0 x5uof $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 (n bps6 .mk2ulw)hxr8in a power of 24.0 W associated with the bulb. Which one of the folloulk8 nhw)m x(b pr62s.wing 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 rated at 500 watts in f*n6 ik9+bboe a 120 V circuit. If all computers are plugged into a so9fb i +b*nke6ingle 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 resiso-dl03: ftg u+xjri5qtors to form a simple circuit as showniug5rjt 3f:0+dlq -ox 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 simplxx+3r0nom wu .e circuit as shown to the rinw.xr+ 0ux o3mght.
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 three resisto3ct1p cz bo 7noc3k(py 2;hw2xrs are connected as shown. With the switch open as shown in the diagram the apc1z3pkow2t7n(cx ;2c hoby 3 mmeter 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 thw6p mj:v ewcx p0ashzx(:js.123i.3yy *xtlxree resistors are connected as shown. With the switch open as shown in the diagram the ammeyxcp: 32ism0ejwx lvx3.z* :wj6as. px1y(thter 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 and three resistors are nd() agmk9s koc)1jmi rs*:4nconnected as shown. With the switch open as shgon()jkrns 9*aim1s :c d )4mkown 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 the equivalenb1d ty ebq 1+;ycl,7hq2ox s0kt resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three qlxecyh0 d skb7; 2+t1y q1,boresistors 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 resistancjvozl,;.x85ls np:ed m4ii( re of the circuit shown to the right with res4m 5 id8.ezlsri:jln(x ,;pvoistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a cogw b8(5-gmbpj m;1pr r*6 h thnn(o*ohmbinatio 8p1g6ohoh hm(;r-n* 5bt bgmn(jpw*rn series 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 idec.xhft-l68eh. .-tsx*l ocw.9 w v pcqntical resistors connected in a combination series and parallel circuit to holxpl.cs 6.vtqw-.xhct- c*fw.e98 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 of the bulbs are idbbu+e4qz )3h :gvi ynis/ ,c*wentical. Which bulb will be the brightests)4 w veqigiub/hc*:n3z y ,+b?


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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 three rf)//obf5a m xtesistors are connected as shown. With the 5ftx/f )bamo/ 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 resistouvoh r6o9, t-t*0q njors are connected as shown. With the switch open as shown in the diagram the ammeter rea6*jvu-9ntto0 ho,ro q ds 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 r8tgvmx fu4zh w6uv6 5,esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes mfx6uvh4, g5tu z86wv.
When the switch is closed, what would be the current in the circuit?


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