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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 eftlhbf6ne 9j- (ga)f+)l9j n o3ex3xvlectric current exists in the metal resistor connected to the battery. Which on ffg+f6xah)e3)ejn3lx 9( t9njo-l bve of the following choices best describes 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 parallel, the________ 1lqsute1u9q yr,(*a q_each resistor is tq1( uql1e,srq yau9 t*he 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 f 3xqr7b-c dil go5xxjas-l261l 6jtl*ilament to become white hot, while the larger wires connected to the lightbulb remain ir 6xdq1s72cbtll-5olx 3-ajlx j*6 gmuch 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 househ1 ikwa29m2 zzkold lights are being replaced with LEDs. LED is the acronym for which one of zik wzm2ka91 2the 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 r y 4bg3km., 4ai4ycsdlesistor 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 re4y.a byk 43cmgd4ils, sistivity 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 the1kh/xfoe/ jkbrnr( 9 2 same material. Wire II has twice the diameter and twic9bx(kj no1h /rr/k2 fee the length of I. If 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 material but has twice thke fi9 x );mr,sg:i+fie diameter and half the length of wire X. If wire X fi; 9fk)iie ms:, xg+rhas 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 piec.rzy(av nhu fq y/q773d9nn8qe of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materiz(rvfq n7d3qy7 n8 .q anhu/y9al 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 bue w ;/8 vmbvt.f1umq)glb. He decides to modify the filament. How should the filament of a li 1fv 8tm)q;.wgbv/e umghtbulb 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 rqaus2p:a4 rqti i rv;4 v voa(a3ep(+5esistors are made of the same material. The length and radius 2 paiav5rtu(4;v qqrois ea4 +(v3pa: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 concwz::r5a,zxzcc a)j g3kmi** nected 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 :k,ma5ccj: 3ca*xrz )i*zz gw 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 +h: qqb9i) xswdiagram has internal resistance 10.0 kW and the ammeter qbsqi 9xh :+)whas 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 right. The tpe 7c9 t )o;d jkyz;r;lmd4tirlw49w8hree bulbs 1, 2, and 3 )pd;zr 4 eill ;cd;wo9kmjtr7t 4w8y9- 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 circuit at the right. If thecakk+jb 8xk wj -)z*v4 current in all three resistor4 c8a-*xj +zk wkvbk)js is 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 at right represents a;)ao b* ny-niy simple electric circuit composed of 5 identnon;-)bay*y i ical 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 simple cir-*3z/d9sxffpc;oqy yi s (1 sfcuit shown where resistors R1, R2 and R3 azf/pd;is 3sq1y -cff9x(* oysre 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 lightbulbj iwp**0mn) ex x*cy* i);pojos X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY aop*jxn*e*oii*jcp w yx) m) ;0re 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 coul 8d:hm1v08qbwaq t+uaombs will pass through the identified resistor in 5 seconb+wt8 8 aq0hqmu:1 vdads 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 thl)5uxb8p 6 nlv9i1 jmne resistors in the following simple circuit have the same resistance, which wo8xbuln mi6 )1v9np5j luld 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 tixp),i6yp6 ecmf;z1 qoq p-3 khrough the 6.0 Ω resistor is 1.0 A. What is the p6f;ymp1kp qxi3io,)cp q 6 e-zower 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, Rs k.+2f8p6o 9dcfvx d5ogqay42, and 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 R3 dissipates 6.0 W of power. What is t9poq fxs g .ya2fk+c6 d54v8dohe 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, mgivl; )5bzhc*qi3ijc a f4 :6R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. b:gf64 zqh* caii )ji5cl3;mvWhat 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 the maximum 6qb (1i9xrrtp1ir x(rqp6t9b value 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 resistance of a 60 watt lightbulbka u i2 b dkuby1r+q0er3v;32z designed to operate at 120 volts?d kr32vieb q ukyb03;1au2+r z

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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 dissipa.(nwrtc it1f +wo;po; ting 36 watts of powerp1f;t ;cwioo+tnw.r( ?

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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 i:w6t3ngpqext *ibk,5n1ff4j*e9v wz ron used to press clothes is marked "120 volt, 600 watt.” In normal us*ib,knx5jvf eqf w*ng4: wtp 3t691eze, 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 resistanceswmk1i w)l(hh u5sm3yi)cd/j7 could NOT be produced by a circuit containing(k )im3sh i yjl7/w1)mdwchu5 only three 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 resistors. Which of g+hx 13l u4bgmthe following equivalent resistanc +blxu41hggm 3es CANNOT 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 9i;yc;aixxlg -a;dx;connected together in different configurations. If all three resistors are used iil a;;xiacg-x9;yd ;xn 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 connected to a battery, a total poh 0usx.yv1ec0l;-iu4+ hrn buwer P is dissipated in the circuit. How much total power is dissipated in a c .-e0uvhinbc1hsr xu y0l4;+uircuit 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 and R2, areca qd lzbd0wp.c(p*j+ vuwb(g9,xh,, connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the r.bc d( upc,x0lzvdh, ,qb j*w9w(g p+aesistances 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 re)sr95skcqv0 p, q2b 9tkvge (vsistance of 12Ω when operating at 120 volts. What is the m0(vve2 pr tb,cqk qv5k9g)s 9sinimum 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 0gp igy:p-7+c9xmv up resistor that is dissipating 36 watts of7yv -c0ipmxg+p9u g: p 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 curreu:b lx:5 (lz7rs h4rw deghm+-nt when connected to 120 volts7llm xdbz4se r( :r5:+-whu gh. If the 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 wouldc ,z6uau4ksl :bg 1 whwolm-5/ it cost to keep a 100W lightbulb lit continuously for 1 k gl4wu-,m:cb16zs aw o h/ul5year 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 lightbulb re *2mnvfi2:ri fc8nfj2sults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of:8i2fcjni fvm nr2*f 2 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 o;f1sam:d/ yh.ww hqb1 f a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a h w1yma;d:1hfsw.bq/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 to6r5 o25 rdmg j)rkr:eu form a simple circuit as sho5 5ro )jrrrumkd6e 2g:wn 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 fou/ih, 1osgpc)y r resistors to form a simple circuit as shown to the right o,gis)c 1/yhp.
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 resistorwh.wusou6c5kj2 m(no: k8o t *s are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereso8(:uuok*k ncmjt 6woh .s52w.
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 ammeteg e30 u3ejiso+r, a switch and three resistors are connected as shown. With the switch open as shown in e3g jui 30ose+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 ammeterfe/iv km95.gd , a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeki 9v fd/.m5geter 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 shoj 06tzo2b3mnmwn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, 0 ojzmbmt26n3and 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 to the right witu+ p;bzgdl4 +rh resistancupr+b4dl;+g zes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i/ku:xvn.o j- hn a combination sevu- :h/n xkj.ories 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 identical resistors connected in a combinati 0wg6d/mjyb9qon series and parallel circu 60g wdyjbq9/mit 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 d4+2yt.; eu/kmulaoyjiagram, all of the bulbs are identical. Which bulb will be the briutao;.+yle4 uykjm /2ghtest?


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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 res 9qysh2g)z 45i (w nwefr,yho2istors are connected as s(4q h)fiy5 rogs,y22ezh9 nwwhown. 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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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, agj:v ) 2vlw+x tsq4o vp(k,3mq switch and three resistors are connected as shown. With the switctgvsl,px()j +o 4k 3vqm2qvw:h 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 switch n,vk**tf;zlk and three resistors are connected as shown. With the switch open as shown in the ,vf;klzt * kn*diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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