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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 exists in the(g8iv+ctd)puw .d te* 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 t+8 vdu(pgt.e )d*iw cthe 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, theek4bd5 nw(gz -cz on3 +cc8ef8_________each resistor is the samz dbe g- 84nz8e(cw5cn3ofck+e.

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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 causes the fje76jm fxdg 5:b)c 3u3qrte p9ilament )6:73rtjg xq3eb5 mjdcu9e fp 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 wzr*r -d eshmd9wz8z -i(8vz1zith LEDs. LED is the acr-( z ze 8mz9dvd 8zhsz-1w*rironym for which 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 cross 3welor;x)9oeqfs)mzmkz8 l3m +f5 c+-sectional area A. It is to be placed into a circuitz+xfe39fes; cl3w 8 )zm)+o lqrk5mmo, 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 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. Wire II has tw 1ou6oqq lj-aa-z.bk j8v oc/2ice the diameter and twice the length of I. If kbqlqz2 cuv/ 8aj -aoj61.oo -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 mar 1dr9qwi /9siterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y woulqd1w s ir/9ri9d 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 of mxtao 63m;b)(k h/bll paterial is t o mbp3lab/) 6kh(x;tlhen 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 ijdmc e6u-s28k,(e.+o;vo i b7rtuzowants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lighz(-e v k+ 8. doore boi;s7,iu26tmjuctbulb 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 lengtsf 1m dd-6e -uccqhu2-h and radius of eacdfcdq1m h- 2us6-eu-ch 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 n:lb 6 eqm9ig66.fmo rbattery 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 t en6q r.:mo6g96fbm ilo 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 ins: y5h4t:)f .e8pr cbtnk (yvnternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading c(4 ty).y5 8rsn:vpfbeh:tnk 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. The three bulbs 1, 2,a k//q-tz3 i-d2fk vy(0 hlkid and 3 - r/dl/( hd- kia3vy iq0fktk2-zepresented 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 circuit at the right. If the c(ph4v r4 klrxb3c w1:furrent in all three resistors is equal, which of the fol44 f:vck1 bxpwr(lhr3lowing 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 electric circuit composed of 5 i)(wi8h,2.nfeb s,)p -waqq qpomp ;x3ita z+ndentif;+ , -swt.aaie )piqhq,n8mnb)23woppqzx ( cal light bulbs and 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 tl(wxmi-zgj5 h2ipyq8 )6-bow rno-o2 rue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesb2i-x(2wmowog6noj h 8 5lp-y)zr qi-?


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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 czb,/pcd znt/0; z-y fyfb/h2fwr /s( a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with e2yb/; w-/ df,s(zcy0nr/ /fbzhzct fpach 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 t hand**j wnn* w+9vii(he identified resistor in 5 seconds onchn i(*v9n iaw+n**dwje 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 inet 8ouwhwn n*g o2;) v79g6 m5dnwjh+s the following simple circuit have the same resistance, which would dissipate the greates ngnowvhh9 52)wu w*gj6 e+;mo8d7stnt 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 the 6.06(n qdqkcuu 8: Ω resistor is 1unq cu(8:6kdq .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 resistors R1, R2, an7pi;ws4i( s mgra :ij5d 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 ;p4(g7smia: 5 wsiji rR3 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 Rjeh tf+m w,a )dxe)//3ab0mhd1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wa0t+d bjd)f3a/eh mex w)mh/, hat 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 l ;*y wd2:humqa)qtmtb7(ag0 watts and 120 volts. What is the maximum value of the current under thes lqqugt 07hmmwa:(;abd 2)*yte 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 operateq.o6mb 5e7gfuo6 4vsk) 6+ c6ek cqita at 120 .k 7ot+vq)c6eo4sgba6e mqci 5u6fk6volts?

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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 wf0p.:lk40yf+jqyl gflows through a 4 ohm resistor that is dissipating 36 watts of powel4qywf +:. fjgly0pk 0r?

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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 p h +51kyl9ypzwress clothes is marked "120 volt, 600 watt.” In norma1zwy 5+k9pylh l 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 produced by a circtvgs ) )ty-gi *m+s7rcuit containing only three identical 6Ω re)rs) gtsg tv i-+ycm*7sistors?

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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. Wska zi*maq7za b7())hhich of the following equivalent resistances CANNOT be prma aa*(z)kib7 hz)7sqoduced 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 connecan.v4kf4a0 dk +hz)1-o6v laoyjv0 zrted together in different configurations. If all three resistors arnv 4 0- zrkhvo+f.lyaako v0)641z adje 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 connecteh l 2gt(v*g,god 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 battery? Assume the internal resistance vh(*tg,o2ggl 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, havingo/x,-/p sj ryd resistance R1 and R2, are connected in parallel, the equi s//xpoy-j,dr valent 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 designed sucgf:om5 .m ph92wmvpb9h that it has a resistance of 12Ω when operating at 120 volts. What is the minimum .m2hfbpmg9wo:9mp v 5amount 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 .nu5 fbn (:-p)zmb(foryezhm)q ;lt9 that is dissipating 36 watts of pomy )n -)uonq m 9hzb5t.(l(;:zfrepf bwer?

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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 connectez*4uy7 yzlr ,xrrw+v*plqg;8d to 120 volts. If thery*,q*u l r;zlrwgx8pz4 +v7y price of 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 lighgli6 8,4/w2 foen6kis a x0wxhtbulb lit continuously for 1 yeow6kexg w4i8 6ax0i nl2/fsh ,ar 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 thrt q4pmx)pbwru/g3;+iough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followinr) b43g+x tu iwqpm/;pg 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 ratedsrf:e 1zy9bx/ at 500 watts in a 120 V circuit. If all com fey x1/bzsr9:puters are plugged into a single 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 resistors to fwx 4f(m*feqcf)9 3(aq)ql dil/co p)iorm a simple circuit as/f*if(id (c9lcwla))m 3xp q)fqo4q e 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 corhkoqe* 6z:qj ,sbn ep *am:/;nnected to four resistors to form a simple circuit a*qsn*k,6b p er;ajomhe / z::qs shown 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, anvf9 4kbe+xp m.ea 9ip2 aa*ox0 cw2;ze ideal ammeter, a switch and three resistors are connected as shown+fca0.mvaia2e9x2 kp9w4ozb;xe *ep . 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 11nyk*jay8samkwy + z16 g(pu are connected as shown. With the switch open as shon*uyy6+z1jwm 1gk ypk s8(aa 1wn 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, an ideal ammeter,w: (o8p+h rryi a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rer(+8ohi ywp:rads 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 shownag tel(:6 ha+g to the right, what is the equivalent resistance? Assume that all wiat:h+gg la6e( res are ideal, the battery has no internal resistance, 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 of the circuit shown vmpts1f/ulw;ig ;iu ) py5( v) to the right with res p;ywpu(t) i1v5 /)imvfu;glsistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 lbs dk9l;k/5;lgn 0jp a combination series and parallel circuit to a voltage slnlj05d9k;glpbk/ ;s ource.
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 conq i.9urm *d inl4 s8ive 1omyu+5v s;o6rzi4(wnected in a combination series and parallel circuit to a voltage sourcedvn6yzrvm84;sie *4qol9( ru ui.simwo 15 i+.
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 identical. Whiusoqs6y: 8 em.w :sc1pch bulb will be the s.:swe18 o pqus :cy6mbrightest?


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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 a9oi9qg- sk7awcfq3blo2uux1jr ( p 5, mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter roul pgk- o(qw f92 qs9ajc,xbu5 i17r3eads 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 resistoa :5ftz:w 6cm dy-cm(jrs are connected a 5mf-m:a:d6 z tcjywc(s shown. With the 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 jfctrj k//uk 3wp-/x- switch and three resistors are connected as shown. With the switch open pj/r xu/c - wjf3kkt/-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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