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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 mc36q /hp1ly-wruuu)9nsvx 9 ietal 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 el9xucupqw u1 h36 s9lni -y)r/vectric 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 )z/hzyqtdpomn zd/kr4qdi9 4t :-r57llel, the_________each resistor 4t/z kzq 9drqm dotndpyh:r/i47)z-5is 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 d4*s 2 5cwulfhcauses the filament to become white hot, while the larger wires connected to thelwuh*fc4 d2 5s 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 b /y+yf+ iwbob.eing replaced with LEDs. LED is the acronym for whicwi ./+b b+oyfyh 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 graph 2efkan x*q99site 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 taefk ns9*2x q9he 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 twice 7 y8 m el6h,x58fu8e bu/rhshiqn 4t0uthe diameter and twice the , eulh568 8s0nuef xmqh tu84/7ybihrlength 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 twicez een;wvf 30go1 k p2tc7nte7yy)1 q,l the diameter and half the length of wire X. If wire X has a resistance of7qey 2w 1n;otcn7geeyl1 p ,)3tkvf0z 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 resistox7 7nvl01huy:rp wp) ir has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of thisxlv7pp1nuhyw:i7 r )0 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 Thomja3))zpo(v9mnt pbmr +cgc( 67awp0 aas Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbum pg(7c)a )jbm ara60ovpwn 3c9tp z+(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 ma/usnh 23xvi bj7rx x4j-pc :yy/g+9 wgde of the same material. The length and radius of h iwcu-n3yj9rgb pj yx 4v2x+s7/g/:x 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 resistancelc*si)m; pziq-*f tb8 lvc 96t 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 thre il tlt*ivmcc9qb- f* s);z68pe 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 t:m 4nq a.fvfxmzvy)9 lj +-cf4r2cza* he accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vlq. 4fc zac-2)fn9 :xzvm a+4frv* mjyoltmeter 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 rigjl41p1mlgc dqhm(j , /ht. The three bulbs 1, 2, and 3 - represented aj1( c1 j/lg4mdm,pqlh s 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 ci)qv+0lrx xt d2mdj)u7 rcuit at the right. If the current in all three resistors is equal, which of the following statements mustdl vjdx2tm) rx)uq 70+ 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 r x jx0m,8rv 8jp p6cbz0cnh6k9ight represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulbhj,0r 8p6xmc9xcn0kv 6p z8jb (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 NOTammvk.5 ehz2w.m 2ek/f1ato5;mv j 7 e true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist2;hmeazk5v2 omakm/tewf5 .1jv .7e mances?


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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 connectedzp c-do 322 o(ketb1zv in series to a battery. Bulb X is brighter than bulb Y. Assume all circuitz 2 tob(2d3k-zvoe1cp 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 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 the identified resistu e/ j)n4v0rvvor in 5 seconds once the circuit jn4r)vvue /v0 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 re+ mjny/1fnh(97e(k,nkglcnv9ia hz 8t8 7xck sistors in the following simple circuit have the same resistance, whic,ke+97nh y xj8vicf h1ngn7ktz(n m(/cak l89h 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 7ih yw38g3idap sq.2.lc*wvi circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What v3y aps3 g.wii*d8w ih72lq.cis 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, and R3 are conn*7qil 1a9hntvected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resi v9 n7aqtl*h1istance 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, R2 andR3 are connected in parr99oct+fa /b eallel to a battery. Suppose /r9actf 9e+bo R1 has 2V across 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 watts and 120 v)f+pxy-7 *kedf9 vuqc olts. What is the maximum value of the current under )ck vqx- d9 7*efup+yfthese 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 opb .z+qa ey*3oherate at 120 volts3h ab.qoz*e y+?

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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 7.cic7- molv y56 jvjndissipating 36 watts of powervymvlj6.ioj n- 77cc5?

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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 is marked c9-v*4mng zj4e6 i qkl"120 volt, 600 watt.” In normal use, temck- n*44 zvqgij9 l6he 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 re;5b3).p:e mh 0g bpiu-lcp0zlmckc o5sistances could NOT be produced by a circuit containing only three identical 6Ω res- c ;c pe:bc. koz)mpl030hig pub5m5listors?

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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 three3iu pady65c- bsbz,)., rlff ynvf 7u: 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be 3z5i: c n),rbbs,fd7fafyv-lp 6y. uu 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 bezlv8t7 lpep9,xu 6i a5 connected together in different configut9el5 a 7pp6uz8x, ilvrations. If 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 connected to a battery, a total pnf+ uznig:r,dlb.(ti*js .f 3ower P is dissipated in the circuit. How much total powfiinj.*g(tsu,b n+fr3:z l.d er 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 and R2, are connected in -oitq;.n. dej)m .smm parallel, the equivalent resistance of the combination is 5Ω . Which ofo)nemd;jmit ms ..- .q 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 designedcmyg81 r)w+azv(m2x(5 pd g oap q7x)g such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of tio dgaxyw78)qgp (2(1 5px)c+a rmmzvgme 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 thcc (9+zd;i.p: ybtin(8y wllh at is dissipating 36 watts of power? ;b+c ild(wlpytc.: zh9y8 ni(

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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 amperesbk2 ;xe00z3 qz9sovua of current when connected to 120 volts. If the price ou0k9 sz;eq0zx2o3abv f 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 7hn4 9nbw n;ybdp -,ssgr5 mj5lightbulb lit continuously for 1 y-phrsgd5 s74 j;5wnb bnyn,9m ear 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 4.0lgo * e+ ksua,e9x0ip/0 A through a lightbulb results in a power of 24axu o +*9 /k0peiselg,.0 W associated with the bulb. Which one of the following 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 c5rd ckf1*,qyi+m ia55zi:l ylomputer 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+f z:15rl5*5dalc , iiykyiqm 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 resistu 4xthw+1s(cl ors to form a simple circuit as shown to the sl1h uwx4+ct( 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 batterym d/qxpj-14wpv: h- 5oy.t m/;mazplr is connected to four resistors to form a simple circuit as sh-d4/ w-hpompzrmt yv.5x:q p1 ;/ mlajown 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, an ideal ammeter, a switch and three n8lxghf3a .e j-,u m;nresistors are connected as shown. With the switch open as shown in the diagram the ammeter -lx.umnj;gn8,e h3fareads 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 ammete nal0 41./ w7bvkwcoudr, a switch and three resistors are connected as shown. With the switch open as shown in uk01cv w./o7 abdwnl4the 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, a switch a d)w ;i1jp;tj*l-wc ubnd three resistors are connected as shown. With the s)du;bl-cj1*itj ;pw wwitch 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 circuij4w- 7dhs-jc yc0 3rvxt shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and ajvy 4d-0srcw-7j xh3c ll 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 showndm 4blye2ee* oy12u0hwrv f/1* r-r kl to the right with resistay0y d1keov e1 fw-/m*lb42erurhl 2 r*nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 k(e gz * bd,lam-mg0*uidentical resistors connected in a combinatim(bmdae,g*u k0-z* g lon series 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 conhmw5gc axe)kem. se *o3bzk3*fde3u xcp -) +5nected in a combination series and parallel circuit to a voltage source.3z)e x)f5koeb d-whmac*sp*cu3m 5ge +k.xe3
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 diag+d)/nm n sxm6a x4fgt4ram, all of the bulbs are identical. Which bulb will be the brigh4tm/+ma nx6gdf4 nxs )test?


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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 ammetertori;: )ip,gs,ge e m5, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ami5, emigpg :e;)r,so tmeter 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,50wq *nnm d6rv an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown vwnmnq 5* 06rdin 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 idev*73plai ,d8ontp q;v al ammeter, a switch and three resistors are connected as shown. With the switch open as sh davt7*;,3oli8 npqp vown 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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