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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 me/c (q db b1u7eyn+f m3)snvj0etal resistor connected to the battery. Which one of the following choices best describes the di 7)cnyu01emev qdfs3 / (bj+nbrection 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 parallel, thhd qw:xb sw0vf )4pm.4e_________each resistox0v4 b.fqd sh:w4m)w pr 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 through the thin filament wire of a lightbulb canoo2udt1 1o76o qr2 hquses the filament to becom q7onodqht1or 2o1u6 2e 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 l6b qmqip v4y g2h(.sx3ights are being replaced with LEDs. LED is the acronym for which one of the follqhxvg3m2 yb46(p.qisowing 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 crosj:bi jrx4 -o p*sg+uvf 44xd1hs-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 resistivijphvx*is +1xu-r:d f4o4jb g4 ty 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 m sb0o2ox .rgz+ pzld+3ade of the same material. Wire II has twice the diameter and twice the length of I. If I has zro+0lds23g +x.oz bp 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 materi t el;a3ue9ayyv.b 5 wb(xa2o+al but has twice the diameter and half the length of wire X. If wire .a+9av3 byw2 ;ebeoyut5 alx(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 piece of materia+ il0vi1;cmq mu3e cfd1: j8til is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becim01e l3mi:8tf u+1 v;qjdcicause 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 v:31l,qb ezcwi cmudj39fl8 ( brighter light bulb. He decides to modify the filament. How should the filament of a lightbuumlc3vd(wjzc:f, b q1 l9e83i lb 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 length acbaa z0;bggmpt;o t 3fvd53( /nd radius of each resistor is: m0p f;g(g5 a3a/;d bbovtztc3
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 to8hen;hlduwr yy(4yw-,/au 4o 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 whr-(8y4nu / ha, e;ou4dyylwto 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 internal resiskoj 72f)o:eym4h. rwstance 10.0 kW awjf 4o m:yhko. 7)er2snd the ammeter has internal 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 rightv . rkpoq v.ib1i63gc4. The three bulbs 1, 2, and 3 - represented as resistors i4oq1vk.ib i cgr6v .3pn 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 elec g 04fv43pwwwe ivey5o/t(u: ltrical circuit at the right. If the current in all three resistors ifwl5i0vvwt4y :(4uo w e g/3eps equal, which 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 aya2(a 2 p vn1g;oqx7nft right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bu1nqv(2 pany 2o;7gfa xlb (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 stat5l9nr9 kxak (wements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist(w9nr x k9lak5ances?


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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 m);9nod qs)ot (-sfyi(lb zx,andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X z tl,;mi))qfx(d sno 9(syb-o 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 throumd(hibgoe7x)w * ok+5 k2qh1y gh the identified resistor in 5 m b 1k qgdxk25 )i*hhoo+we7y(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 resis93+irk :a qr-qbe4iwntors in the following simple circuit have the same q+4qi 9rw a n:e3b-kirresistance, 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 throut14u rzzgeu,e t /;*zhgh the 6.0 Ω resistor is 1.0 A. What is the power supp1gztu*etr ;z4eh,zu / ly 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 batters c/iptk,, p/ ;h 7t+neexpoi2y. 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 voltag, pei72cxs ;he nko,+/ptp/t ie 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 connected xymi t 6j;mc(6uji;m7 in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?i6mxi ym;j c utj67m;(

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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 12,,zlsof ( w,p aadf( c)kj6jezw g5o4:0 volts. What is the maximum val6)fzepj(5c k s(l,f owg,w 4a:da,ozj ue of the current under 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 resistaniy ; 164twpfplce of a 60 watt lightbulb designed to operate at 120 vwp;6l14pt if yolts?

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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 dissiq ,nyulmiht-)24 1auwpating 36 watts 4 m)qu2li,- uh yantw1of 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 ironpt:ekfv ) z5rm9 y2tp9 used to press clothes is marked "120 volt, 600 watt.” In normal use, the current in itv 2)p5tfptkyze:9mr 9 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 cirpo1n s jugka36 j7ufy0q7fg)7cuit containing only three identical 6Ω re10)a7 y ujj3k6g fougfnps7 7qsistors?

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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 resistora v25i:o.ws5trixy*e4u) vo r s. Which of the following equivalent resistances CANNOT be produced using all throti u*vsx er)v 5.ro4: ai52ywee 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 di(k/ .x vti-yjofferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistao j/x-.vit(ky nce 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 singlej6krrl /k1, jwfak .o. resistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a c .okfrakjl, rj/k6.w1ircuit 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, havgb5fxo,;w p6bs4f,b7;f kcg d ing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statement4, pfk5g; bcf,b bw fgx;ds67os 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 thatja r7gb.z(m o*+p-6efs6m z)dhad 7n d it has a resistance of 12Ω when operating at 120 volts. What is the minimum arsmp (d.b6-dfa e*6z )zdg7noham 7+ jmount 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 isl(; brz9vpt qvb02 )va dissipating 36 wattsrb t 9zv)aqvl v2;0p(b 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 amperes of current when f:1ynw-,ru a q )zev8o/ zvrl0connected to 120 volts. If the price of electricity i/e,l1wr8rz:yfna uz ov-0 )vqs $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 itn vi i9bcn*4gorc;d,m3eni ,f)l*ht; cost to keep a 100W lightbulb lit continuously for 1 year at a ri,g4t rih,c nf9en n;)3v d**c;lbomiate 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 rehmz .n-;gew5jx)8zb rsults in a power of 24.0 W associated with the bulb. Which one of the following choig rj). zwzb-m;8e x5hnces 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 ind v8qxn.8etlfn) nm:- 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 computers c8t e:mnfdn .x8vl-nq) an 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 ) f gz+ ctwrxb,j6+,tmconnected to four resistors to form a simple circuit as shown to the rigbczxg6 , )j ++wt,rtfmht.
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 connectq m cbld3:-n: br(vu8qed to four resistors to form a simple circuit as shown to cnqurd:qmvbl :-83b (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 ideal ammeter, a switch and three rp0v53sl g6nozesistors are connected as shown. With the switch open as shown in tho306 zlp gs5vne 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,l lju25e jg+sk.5v)3+xjg s l+fx5bxj a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter read k552jbjgjfl+x+lus3vs l +e5x)jg. xs 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 swittl am(ml,t2r2le g v.f/-cdr,ch and three resistors are connected as shown. With the switch open as st l.-a,lgrfc t 2r( m,dv2e/mlhown 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 slz(p j,trg 4;d2jz:ow hown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery hazz,2:ltpdr (j4wj o;g s 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 rvbnq;t/jl2nbr 3kb4 * esistance of the circuit shown to the right with resistances q*/rjn; bk2bvb3t4nl$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident 1ms13dk0ndhf mr z.2v9b4ereical resistors connected in a combination series and parallel circuit to a voltage sourcnme41 vse29md0b rdhrkzf.31e.
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 ro u(.uly og9t3esistors connected in a combination series and parallel circuit to a voltage sourcegutyo(. o 9l3u.
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 dbp po+psidq+6alr. ,9 iagram, all of the bulbs are identical. Which bulb will be the brightest.ipalpo6p +q, d 9br+s?


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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 a8:t hss3o(shwre connected as shown. With the switch open as st3s:(ss hhwo8 hown 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 ammet djpukwh;. 6h;er, a switch and three resistors are connecte.djkh uhp w6;;d as 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 switcha1:lp:q 8q tli and three resistors are connected as shown.a8 llp:i:tqq 1 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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