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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 electaomyg r+.: jhpfd069wh3bruoj76r ta2)l o,dric current exists in the metal resistor connected to the battery. Which one of the following choices best describes 0h)u.djdpyg o2:,rol wa7ja9 fo6 6b3hrtr+m 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 para-w:own*o9lfw is .u: yllel, the_________each resistor is .isuo:w ln9ww*: fo- ythe 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 causes the filams u 5:7au.e) cqu1gfhdent to become white hot, while dsg e.fq1c7 uu:a )hu5the 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 householq7a7*fzd ung. w s6sa -:diw*gd lights are being replaced with LEDs. LED is the acro6wsngugas *di:* daf7q z7.-wnym 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 grag 2dr5.o64sd ygf sq d*9:turaphite 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 ugq:tr *sa6.o95gfddd sy r42 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 sautdl b4;b 1mv3me material. Wire II has twice the diameter and twice the length of I. If I has resistancedbb ;43m1l vut 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 twice0 vy-+e)t,h/ ;oarkvz rnkmn: the diameter and half the length of wire ; +hv/knre:- n kat0,m)vzroyX. If wire 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.obeskgz69j( piece of material is then drawn so gez6. s(o9kjbthat 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 Thomlx02:r uvm pc1. o l,ybc 3c-:k/twtlras Edison wants to make a brighter light bulb. He decides to modify the filamenl/0u-tlm p lky.1rc ,3xcobr w:ct:2vt. 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. ek1 ,j .db vrnn81m-+ :pqtfytThe length and rafepq+nrbm-. ,8vtknt11 jd :y dius 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 resi h4i b:e;wx yyw2;j0cistance R, are 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 four resi0:xc iehw4y;iyw2jb; stors?

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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 c) a+g c nyg fr+(4x+ga6 (:xaq;g yecxccjn-k,ircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammc+-a , 6yxgg; xcg+e( n+ :a)kgjxa rf4nycc(qeter 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 show 0k ,qz3 dffrwhya/w -yck.d;;n to the right. The three bulbs 1, 2, and 3 .awrz w30fcyf/h;k;kq-, dyd- 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 5 k a/q-ysm.hh wt91-(o:cy a dhoq2mycircuit at the right. If the current in all three resistors is equal, which of the following statements mu aytk/cqhd 9y1 m h: (os-ho-w.mqy25ast 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 righa 8+fd m3:rfla di0rv28v,zmot represents a simple electric circuit composed of 5 i,a+m:8 vmf8d 2rv03d razlofidentical 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 true concerning the sifrk:l1 (fi 6al-popw4ms5r h,mple circuit shown where resistors R1, R2 and R3 are hps:k5 ah(1rloi6fflr p-w,4 mave 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 lightbulbspd+gxgsx + b: (s;z;vedj*)os X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit eles ps(xds)*;xoz gbjd+eg:+v ; ments 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 couloiubh*whqi8b-dsv(;- mbs will pass through the identified resistor in iq(--ih8b h*sdbw ;uv5 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 resis34da *xdsezck;z yq/. tors in the following simple circuit have the same resistance, which would dissipatec d q.y ;szaz4xd3*ke/ 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 qmx63c,u3me+qfyjc ) the 6.0 Ω resistor is 1.0 A. What is the power supply voltacqu 6 jfxc3 qye)m,+3mge 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, and1 7wt6m- n4fmhyk lk.r j,r yvunw,37g R3 are connected in series to a battery. Suppose R1 carries a current of 2.0myn,wkhnwkrgy-m 1tl7j6u, f 473 rv. A, R2 has a 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, cl- mi36bxao087(iuldjlb(rR2 andR3 are connected in parallel to a battery. Suppose R1 has 2V a x(6(u3lb llrmdjbaii c07 8o-cross 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 watryaaf)56n jhf+ b)g. hwjs67its and 120 volts. What is the maximum value of the current unb.i+j)n asfy a57h fw6j r)6hgder 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 lightbulqr45tlv98 qb-mjpn9b b designed to operate at 120 v8 q9n9tmqrbvpj 45b-lolts?

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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 is dissipating 3j yy4eq)i+)is 6 wai+q)ey) iysj4 tts 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 e 6k0f8 j7)fa xesccoj+zq,* lis marked "120 volt, 600 watt.” In normal use, the curren)jaz0j8, k*c lefxcefo7sq+ 6t 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 fd4/uxv . th1 -urt8,rbweln v0ollowing resistances could NOT be produced by a circuit containing only t0v8buvr1ut/xhde t .4w-rl n,hree identical 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 rtfa v70b(sb u5)h+4kvpzexg8 esistors. Which of the following equivalent resistances CAz+ a)v78eps4h g0 b vkfutb(5xNNOT be produced 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 tog)uchf x z)0icwd y): /c)c/rvcether in different configurations. If0vhr)d )/i c cccx)y)cuz/ w:f all three resistors are 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 connectw(mew ;7fvcadj 6 51hzed to a battery, a total power P is dissipatea (jev f6zh7d5mw1;wc d 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.

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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 an32gdt: h (bohgd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whichg h2g(3bto dh: 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 such that it has a resistance of 12Ω f)sf u 4e9yv, gh7dvu4n/rz*a when operating at 120 volts. What is the minimum amount of time thvfnuh*f)u 9 r7d,44 v/zseygaat 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 th* q4*fyh 6n8 q,wa*bl3aasqxrrough a 4 ohm resistor that is dissipating 36 watt6a8y*nq s*baxql3aw 4h* rq,fs 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 draws 13 amph.5 f:mng gpa u06ruk0t f:b:6:cprsb eres of current when connected to 120 volts. If the price of elubpan:sm.f6r 065 :fpt:c gh :kr0g ubectricity 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 i6 8v3cal a n60r,atjdo;bch(f t cost to keep a 100W lightbulb lit continuously for 1 year atl(vchtoj683 ;,rabf 60danac 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 throuo,lhn7+t(r1lu: j:mm m* c pxlgh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resist lrnm 1(otjl*,7m: mlpxh:c+u ance 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 compw0vhla wo+*4 j5h*r ffph-*e.q,inql uter rated at 500 watts in a 120 V circuit. If allq-w rfl0v,4*jq*h a5.hli nfo*phwe + computers 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 conne1lhi k6b) r3co+r4dc ncted to four resistors to form a simple circuit as shown to th c4klo h6+ n1)bdrc3ire 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 od8nbwe, ea i(szqcvn7-81h8 a simple circuit as shown to the v ,h d -eaebsin1(zoqc8878nwright.
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 resistors ar7w o)nj/5lskbe connected as shown. With the switch open as shown in the diagram the amsn k7b/)wol5 jmeter 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 ak 7vv pkle- ,q-o:w)ke:e0oimmmeter, a switch and three resistors are connected asv,kpw)--0e:le:veq kk7oo im 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ide4jwj ;e7qvrs/ al ammeter, a switch and three resistors are connected as shown. With the4sv7;w jrjq /e 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, wha a/ exy8ub-ke;z-y.cn0z/x ss t is the equivalent resistance? Assume that all wires are ideal, the batteraxkb y 8-ys0 /xu .-nez;sc/ezy 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 o09qql gs-cs) to the right with resistansq 0sco)gl 9q-ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identiso8d*w6m )fkkcal resistors connected in a combination series and parallel circuit to a voltage source. w)o *kmd8ksf6
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 showsy yzh+0va 0q,o five identical resistors connected in a combinationy0h 0qa,+zvoy series and parallel circuit 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 bulbs are identical. Which bulelamf 4 25ogopdi )4a-b will be t5 iao2 el4d)f-gao4p mhe 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, jmi* uhw /icf6)tt u23fj *;l*1 ncmxza switch and three resistors are connected as shown. With the switch open as shown in the diagrfx*ft*)u6c2i;3wjitml*z 1 nuhj / cmam 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 switc -+i7sj xlwbp+:in2jah and three resistors are connected as show s+j piabnlxi7j2:-+wn. 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 ammetebc94u8jx8kc e r, a switch and three resistors are connected as shown. kc9bex48u8cj With the 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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