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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:z p4yjyx5vnv 19my1s exists in the metal resistor connected to the battery. Which one of the following choices best describes xvny4: 5ym1zypvj 1s9the 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 conns me+s we znyasd ;1*:w dy),8wet;v1qected in parallel, the_________each resistoz *ndwsq1e d : w8as)+yve1;mw set;,yr 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 thrqfz)s 7uv6bd+ ough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to thuf 6v b)+sz7qde 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 househo7zj( 2vnerv)e ld lights are being replaced with LEDs. LED is the acronym for which one of the fjr 7(v v2enze)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 graphi tfouwdfa g eam.j-) :/44y) iuq;if+vr:yzh1te 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 new resistivity to the old resistivity of the cylindrical resist i yuirv:wmatd )41/ hg fy4z)q.;fou:fej+a-or?

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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 si78 la(e)r tia; nk;ftame material. Wire II has twice the diameter and twice the length of I. If I ha7kf8 rl(;tie ia);tn as 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 the diameters.fqih7 2aqh);yg ua 3 and half the length of wire X. If wire X has a resistance of R then wire.2yg ;q7 )i sfaq3hauh 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 resis:dz8 4 qrdh ,9fn :uo4foc4wbxtor has length L and radius r. This piece of material is then draw4:z8 ffw,q9:nhd4u4d cr xobon 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 lrk8,cqbv0o( va; z5mrpi /+n4 ncxs9make a brighter light bulb. He decides to modify the firzsc8obapc,n(+n r/ v459 v0lxqmik;lament. 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 material. The l2nhc q;qa)x 1dys b;he x7y6g4osf )b/ength and qefd b)y;hy7/x2x1s;ncg6 4 hbsa o q)radius 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 connectfw1,kiplx2,w ed to a battery in the following way: “Two resistors are connected in series. This combinationl ww xfp2k1i,, 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 h+p*npudg* mdj2b8 cu 4o i,5yinternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter y,p 5pdiugob nc*h2u*d+84 j mreading 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 right.bj 823zwm+5r ac3/vqpih xnfg :k2w1h The three bulbs 1, 2, and 3 - represented as resistors in the diagram zgb2 253n1a :jh8w fcxr/k3+vim whq p
- 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 the right. If the current fbg,l(9.jazq in all three resistors is equal, whi(lgq9. ,b fazjch 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 a8xbs9 8 s3zhlrt right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlig3x98s8z rsblh ht 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 followingbp+ + e ksaheql-o ;0o2vt8eh6 statements is NOT true concerning the simple circuit shown where resh pte;e2kos0ob6+eqv8h al+ -istors 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 5,a)1uo rpv zcl5i-t 2,ktifr are connected 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 choices best represents what is observe2c ,o) p r1krt u5ta,i5-zlifvd?


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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 coulombskutud e1d(x0 ) will pass through the identified resistor in 5 seuudkx e1dt 0)(conds 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 following simple cirrjo)fqsw0 vkd. :z:lrs ;mezb+:q*+fcuit have the same r w flm+z0rr:q ;dkjbe.v: zo*q:sf +)sesistance, 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 zl ;ekbdzqoij (,8:j: .o0,avwad 7dethrough the 6.0 Ω resistor is 1.0 A. What is the power;(8ed,eqvwk zjo d,0d b o7aa:zl.j:i 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 -hcml2j h)6kdare 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 powerkj hcl-2) 6hdm. 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 anc l1e8fbpni;- ) nd-andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesn cdl;8)-p1-in e abnf 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 is th, yt o nulpny2mw7 a+b2.ydt-)w l7s9he maximum value of the current under these conditions2ty+ lp msl )a uod2ytw-7h,y.7wbn9n?

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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 desi/yhzj yfxrjtiob 78iq2( 2)my86ik4lq 4 zx3ogned to operate at 120 vo27q4jky43)oixy b8qr(mz62xjhfl 8/ otz iiylts?

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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 fldz x ;v16*ykaqlxewv0 ic/1 x8ows through a 4 ohm resistor that is dissipating 36 wattsqzx x8yei xl0a;vd 1wv1/*6ck 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 irzwvna :sd( 30aon used to press clothes is marked "120 volt, 600 watt.” In:3vd n (za0was normal 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 resistances could NOT be prmfmvwi7.xsuo n7 h- am+ l.ssx. d*,*loduced by a circuit containing only three ided.s u. x -7wohsmls+*nfalxv mm.i*, 7ntical 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. Whl. dzr ge;yyh emb79 k(,hw9d+ich of the following equivalent resistances CANNOT be pr+dy w.(eg; kz,ebd r hyh9m9l7oduced 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 connew e(or ugz5e4f3a02h qcted together in different configurations. If all three resistors are used in a circuit, how many different valug 4h rwfzoq e053ea(2ues 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 batteryo14 bjr u8sg22xpvvz qr 3u((r zoqo52, 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 battery? Assume the internal resistance of the battery is zero.quq41v 8(5zvopo2og 2ujz b 2x (rrs3r

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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 frusa6;19zq2tss ax) nwr8hkfx/dd;+nl/7s resistance R1 and R2, are connected in parallel, the equivalxsnlw/df6/fd krns+s ;)2;t z9ahsa1xuq7r8ent resistance 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 :t 9i.rr,zwlzyz2izn ky 7x:*designed such that it has a resistance of 12Ω when operating at 120 volts.: 9w7*iin rk,y.tr zxl 2zzy:z 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 dissipatz 9wj7iy a-zf4ing 36 wata-zi f79jzwy 4ts 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 dlkamvxn;u 2*7m 4t4o yraws 13 amperes of current when connected to 120 volts. If the price of electricity is x;2*n4tlvko a4yum 7m$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 light f)kjvnt2 0/q l+q;x/ ro9vgegbulb lit continuously for 1 0fkj gvqlg vx;qt9+eno)/ /2r 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 ligfz0.zz * 9wmemhtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lig0fem .mz wz*9zhtbulb?

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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 own( w* 9rpie2a 8qej;asxs a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the co2jae(a8; we9si x*rpqmputers 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 simple 4eze h,9a(w 5b6houcjyb)d l5circuit as shown to the r(5lch) o6dbazbj 9w4e, hu5e yight.
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 b . viii)+o 66wmynl5aconnected to four resistors to form a simple circuit as shown to ta5iio myn.bl) 6i+w6v he 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 three res,c jmkcqvih.)oskz 1e c,5 8;sistors are connected as shown. k)eq cv,o s j. ,c1kc8smi5hz;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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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 resistors arere/.n7 8g2xaap ;szj m connected as shown. With the switch open as shown in the diagram the/.nsme 2ga7rj ;a8zxp 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 and three resistors bc)9ug p ( qdw fypaxyet)/;73are connected as shown. With the switc3t pyfd (7e) xab wqg)/upc9;yh 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, whac1-0d-0ay uozub+glv t,bz- xt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resisgxv u0b1oz- bdc-l z,y+-ut0atance, 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 ofto.sft xzqyb 7 5fn,:-4ghjl* the circuit shown to the right with resistances l,st4ft5 hj7q nofbx*-y.: z g$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinath.z6axzr18io kuu :h a l3+t+cion series and parallel1lh6u+i t.zohu ckzxr8 a3 a:+ 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 identical resistors connected in a combzgmj h yg(8m *j4: bcx+ w*a:023rfqlpv ddg0pination series and parallel circuit+8h( algr4vqzgp0 dgf** 3x: d:wjmb p20mcyj 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 of the b9 iacdbp(koca 7 duu,bq4 8).tulbs are identical. Which bulb will be the bdu79o),qaud(8 tb4ipbk a. ccrightest?


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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 resistors,w)w(6tlvy5c*u5)u r jms 7 u 9unuwes are connected as shown. With the l 9 t wuwec5y,u6svuj)msw*)ru5( u7n 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 ideaf:wu/ gn0 q:9rg*aoly l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the do r/:y:0 qggnuw a*lf9iagram 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 resistors a9d5xvyz 2 o) rt/yep:vre connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampt )v:eyx5/dv p zyor29eres.
When the switch is closed, what would be the current in the circuit?


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