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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 s3k vckad 55ag8+dm3 xzhown, an electric current exists in the 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 the interior of the resi8k 3 gcvdkazd5mx+a35stor?


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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 connected6sk*46*yqof jqy xzm/ in parallel, the_________each resistor q/4 jq*myz ky6fxs o*6is 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 causes the filamegh(l scz e5 b7fd/pq)( rznz*.nt to becomeg)p*e f zlc( s d/nzh5qb.7zr( 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 householdb8--gq- 2ehc b ck7g *qur3bml lights are being replaced with LEDs. LED is the acronym for whicu --2qm37q-l bbcebgk*h rcg8h 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 croj9)v gh ixb)+ )nw1tosss-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the ngntjish9o ) wx b))v1+ew 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 oz/iami74bsa /2mgf3gf the same material. Wire II has twice the diameter and twice the length of f ig 4ms/73ai2 gm/bazI. 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 f md-ge0 8/uhrthe same material but has twice the diameter and half the lengte u-8mhgf/d r0h of wire X. 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 piece of mater hg: 2xmi:lkf9ial is then drawn so that h2xgm9k:: lfiit 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 wants to make a brighter lig7fqx*g j5f( z)*sgtciht bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to m 5itq*zjf7(fx s)g*cgake 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 lk:t q o76qla)l6 h k:lb11fmfsame material. The length and radius oqok)fl mf6 ktb6h1l1 al:7:l qf 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 resista:s2 +- jqjsy u34 8yuv oeyd**1awp9 2inxsemence 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 res2vs exej oap-enswys2idy8um1+ 9*3y :u4jq * istors?

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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 r 1+qoe;:v pk8f9t gntvesistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1. t8v :fgpvk no1+9t;qe00 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, 5gaepsd ( sb9pw f2n59and 3 - represes(gfb ne pd9552pa9ws nted 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 rigm mn78(st(b :hd+9 g c7y oemfi-pmts5;qg)avht. If the current in all three resistors is equabontmm:5 p h) sdmq; fe77c v(s-i(g+m8 gty9al, 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 2wh u+ ubdrsvg3g 9 3f4io;m)cwp.7ktsimple electric circuit composed of 5 identical light bulbs and 2 flashlight cells.;g4 cgfkr7ivbh.t33 w+u )2p mu9osdw 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 concerninj57d9qv) d9w7m srgdug the simple circuit shown where resistors R1, R2 aq)m9rddj g7wv7ds 9u 5nd R3 are 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 lightbulbs X andY are 6g)voua j4; g9e.xe oqconnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY ar9aeu ogjqxg)o6; 4 e.ve 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 resistor i9:d ivqeqi+ 8wc sl+z)n 5 seconds 9diizq:+ wsqc8l +)ve 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 resis 1n ;lgmuv9cio5pxjk; );.szxtors in the following simple circuit have the same resistance, which would dissipate thexp;)l u9jn.5 kv zmox;c1;is g 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 circul px po-hql 6nq lh073,z46vflit diagram, the current through the 6.0 Ω resistor il 0pl6pqn4l qh3v,h olx7-f6zs 1.0 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 qhj5ie 3-hfpz/;3)bg3 orpay R1, R2, 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 ib/o y qzh )e53- jpi;hrp3a3fgs 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 parallel to an ed2jvmfac08m18erzxzj* azg6j* )4 battery. Suppose R1 has 2V across it jj) x0d1a6z g28*ajzm f vezn*mc4re8, 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+xj;i-+f cp8xm iu9 -er edis5 is rated 1200 watts and 120 volts. What is the maximum value of thj8xm+s ici-pfie-9rex;5 u+de 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 resist .cwqn-t s)4 /o0-ww gsgru/kd dxro-6ance of a 60 watt lightbulb designed to operate at 120 vortrqgwg k o dso)4.-x0w/-d/n c-u6swlts?

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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 throug mol+2gf4sde twhvq(:(; d -ofh a 4 ohm resistor that is dissipating 36 wattsftegd+ hv(od;lo42 ( qfm:sw- 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 is marked a zd-x1dedm. k7bq-f("120 volt, 600 watt.” In normal use, zbk -d1d-amdef7q( .x 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 resistanced t5rk 8r0is8ps could NOT be produced by a circuit containik8sirp08d5r tng 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 Ωj0/i yi6paq;i resistors. Which of the following equivalent resistances CANNOT be produced using qy/06ij;p ai iall 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 difk* q*m3 fe3 wbnl+s 0:7eeq,7mfrvkdcferent values can be connected together in different configuratikqr l 7mffwm ,sen3b :q+d*v* eck730eons. 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 power P oie: ;adsffvv,xd7 4 *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?f d;xos4dv7a,v*i:fe 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.2)bttv dha1j :/o11 lyg wzxj connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res1.:)jlx1hv/ bda j o2zttw 1ygistances 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 hasw/(b5/ eov rf nbf 0otwll)/l- a resistance of 12Ω when operating at 120 volts. What is the minimum amount of b0 5o-lnl/) rwlebf(wf/v/ o ttime 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 currentp .wfx ybs3s(8v7e*ex5.atkx flows through a 4 ohm resistor that is dissipating 36 watts e3wssxf (kae7tx58ypvx. . 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 connected to*j of ,n1uqev: 120 volts. If th :vn*feuj1oq,e 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 lightbulb lit contepuz ruv wwjsw1 .+8lzzl1.w,)j0u1g inuously for 1 yea)rju . l1uzvuz1wwe.j0 p,1z+w 8w gslr 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 currey2* 4 xbc/yfbrk6gi 2ent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choicegbix4yfy26e2/ b *cr ks 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 familylnxz8r+re art43 z-6h-wi-ts of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prrtx 6zne -8ahl-st4zr- r+3 iwotected 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 form a simp1a *)lz uxcu(kle circuit as shown to thl( )1u*ucxzkae 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 ck n/;2 olev8f6x.umkzxrw)qw4 u 9i q+onnected to four resistors to form a simple circuit as shown tou2.r+zonv4 k9w6k w;xliqe u8 fx/m)q 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 batter j 1hz(l:6nz*.xrf-7v1u kxt dbnb;rsy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reafzkn *bjs6 zrlrv:u.t ;7nh1 ( xbx-d1ds 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 andsogn0 )7w1roh three resistors are connect ono0)rhgs1w7 ed 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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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 and t ek6+gsq- 2( iatfe g:)cc*ydthree resistors are connected as shown. With the switch open(y2 g tqi+t -da ck*f:6egse)c 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 circuidcni i70 e,k;kt shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi,e;ikkdic 07nstors 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 circuitp3oc2- dbl( ew shown to the right with resistbc-l 2wpo 3e(dances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showz(ydc7ahy99e s five identical resistors connected in a combination series and parallel circuit to a voltage sourcc9yzdy ah9 (e7e.
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 sho+t,wyr 2y b.ey-on,c kws five identical resistors connected in a combination series and parallel circuit to a voltagr ,e+y,o 2byy .knctw-e 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 idek;d taw. +1.7rfi6e jhf0 dtagntical. Which bulb will be dk7;ttahj.+ igw affre.6 0d1 the 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, a switch glte6eh4 .x, zsxkyx h554ukb5s69cbk2u/k land three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 46euh kkxyszkhk/5x4,gble5.lb9t2uc 56 s x 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 resistors are cod 9foh*vp) gxr(3+ig onnected as shown. With the switch openg+iv93r fhoo (g *x)pd 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 29kkjt4 r1if-befwn 0ammeter, a switch and three resistors are connected as shown. With the s2 1t9nkrbiejf0w4 -fk witch 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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    总分:50分 及格:30分 时间:不限时
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