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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 el 1l i6elic:7dhq d.tw;ectric 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 interior1ewih dq.id :tllc; 67 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 connecte3y5 2e)xsprij1 ff7rxw/kt +pd in parallel, the_________each resistor i3xyerp72 1x+iskwr5j/tpf )fs 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 lighs;dc-k1a5 z9e jc ta.utbulb causes the filament to become white hot, while the kca5e9zd-. cu a1s j;tlarger 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 lights arvzptt;4ejonu hp ;m( ,0o s/:ce being replaced with LEDs. LED is the acronym for which one of the folte,oon vt(p;: j40zp/ cshm;ulowing 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 gr3 h cz/ gog;72)nmkrisaphite 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 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical ri237 gkz n/mgo)s hrc;esistor?

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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 mateu0c*10l 2 jny ilyx;gerial. Wire II has twice the diameter xin 100 yulgj;y2e c*land twice 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 u dx: wav;bk8ulu .a-.twice the diameter and half the length of wire X. If wire X hub- :xl a8.. wkuadvu;as 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 lengt0(7hvs5x) fcuvi, b1db :kvrph L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hbr0cp d xf sb(v 5,)1:vi7vhkuappens 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 mam-g-iqfb7. ww ke a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbuli7 .mf-w qwbg-b 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 w oxy,x hb68( )yomwv/resistors are made of the same material. The length and radius of each resistor is: moy/(x,6ob)h8 vwxyw
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 yf 8uy.idszq 468)d5f6i2q mou*swo presistance 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. ud8zqs*. wd6o5 myiuyposf8q) fi426” 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 accompanyin9 wnzpsbn py2om*t768r6jz 0pg 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 voltmeter readib8ptop0ywm6srz7z92j*n pn 6ng 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 9a1nn /pfbl9gf w-yj;compound circuit shown to the right. The three bulbs 1, 2, and 3 - represegp- l;f abyj 1w9nfn9/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 right. If ba0ns/1zl5 q,a 1xjsb the current in all three resistors is equal, which of the following statements must be true,0asas qb/5zj n11lxb?


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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 ( + ttc5xatepjz8g9 ,;qt7bgcright represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cel8,gpecbttt7 zc x 5t+a j(;q9gls. 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 concernix 3wl+ pc6zmy4ng the simple circuit shown where resistors R13 y46 pcxm+lzw, R2 and 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 connectzm95d j(8g,kffj gal/ed in series to a battery. Bulb X is brighter k,j5a(g j9zd/gf8 mfl than bulb Y. Assume all circuit 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 res)hq+e qzuy.x.,zhkk/y 9vjs+ istor in 5 s+zxv, ue.hz s9hqy+qk yj/.)keconds 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 resistors in the following s1s(tu )cyyh79h5* qb jh 0fspnimple circuit have the same resistance, which would dissipate p9nf *bq7ys t1 yu(0j5)hch shthe 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 the 6.0 Ω re7kx0eor- ay 0xy+ fhw.sistor is 1.0o0ae0.-x y+ xhyw7 rfk 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 R1, R2, and R3 are con7x+n-va+p8os( wml x bnected in series to a battery. Suppose R1 carries a cu-+8sn7ol(bxmwav +xprrent of 2.0 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, R2 andR3 are connesu w xw; +3reiybh)/z9cted in parallel to a battery. w/yuzh9w)xe3+ b s ;irSuppose 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 120bc* my:lyphxqi /033e volts. What is the maximum value of the current under these xiyc* 3y:lqe0b3/p hmconditions?

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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 resistanc-fdo2 x mv +gfpz:o 1fvi,f0g)e of a 60 watt lightbulb designed to operate at 120 vgfzp d ):gx -m2f 1oof0,fiv+volts?

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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 fld0jje 1os2; qlows through a 4 ohm resistor that is dissipating 36 watteldoj1q ;s 0j2s 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 preoy pk fx4r)jetg-5tpg ,476xlss clothes is marked "120 volt, 600 watt.” In normal use, the current inr fx 56 lopgp7t 4gy4ke)x,tj- 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 follow 2 u. ehk:nb8v(3t+*znax il h9u4wtbping resistances could NOT be produced by a circuit containing only three identiix4+l(b t3np8w*zauv92 . ebnhuhkt: cal 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 n36whw-0f +sd jl2ua s zalv+- Ω resistors. Which of the following equivalent resistances CANNOT be produced using all threswd-3a +20zv+lulfa- s6wjh ne 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 drr j6c+po c+ pud;l91gifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance cup+d6jo clrc+; rp9 g1an 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 is dimrcg x3l8ibkw90+ +mp ssipated 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 ze30bg8+ kwclp+ i9mxmr ro.

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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 Rf6rtt1sqc 3 k8()gfnz q y*xg8i/o3j,y so3fv1 and R2, are connected in parallel, the equivalent resistaq8ftn1()oc 8ff3yy,r jxqt zg si*kv6osg3 3/nce of the combination is 5Ω . Which 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 when,vun k ,6huie4b7-2a ehvdi 2a operating at 120 volv a 2,7vi- eub6n4uihd,kh2eats. What is the minimum 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 resiowd e37. 6109ushryxa* tlfcrstor that is dissipating 36 watts of power?yo6fauh r37 xets*1.wc0lr9d

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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 amperp58sq-22z 8vpge f 0xco*eegxdwv*9e es of current when connected to 120 volts. If the price of elwosgepqxe 5f2exz*2e0*d-p 89c 8gvv ectricity 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 hav0xr8da(+ux:y6 ye 5/ zczjtow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate oad yv8:yczjux/aex( zt0+ 65r f $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 lightbum;lr-mht+ rzu5:ra 5klb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repremla5 mrh k5r-;u+t :zrsents 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 ow5 )phgta;vh /uns a computer 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 g)/t u;vhap5hnumber 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 batterlmxl+8y h 5o)ly is connected to four resistors to form a simple circuit as shown to the right.) 8xyl5l hl+om
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 reo5ci2vq+bfnz* hs-8h sistors to form a simple circuit as2bo nhq -8*+f5zi cvsh shown 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, apcr/ zhkq+2 2wn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. c2rwzqh p/+k2
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 and three rl 4nq-zxdzqfx-5bg)x et e+t ;91 ;djuesistors are connected as shown. With thexx n t-b1g-d t;+5djue;)9 xqzf lz4qe 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 3z+czo v7jjycs, o9m6switch and three resistors are connecjvyc+oz scz j,79 o3m6ted as shown. 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown yibbri5::3d hj0 ;vx rto the right, what is the equivalent resistance? Assume that all wires avibyr5ih; 3d:bj :rx0re ideal, the battery 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 r,+rl q 7cf-vy3o7o w6rxfws -eesistance of the circuit shown to the right with resistanceefxr-wvl,wys3+67ro q7-ocf s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectu6aip. j: i+kred in a combination series and parallel circuap6j i.u+kr i:it 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 combinj3nyw my--0jcation series--y0y cwjjmn3 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. Whi e)e371hz,n zk*,h sq6c fqfyich bulb will be the brightes h6yff)3seinz7 k*czhe1q ,,qt?


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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 id59my+0bzeed1 ge *guqp5aq.bdn2 af6 eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am5egzuqda91+p0*g b n y mdqfeabe25.6meter 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, wjfsa1 nqo,l(x;-7p r)fny v -an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as showp ynw -r-n1flj soq,(f;7)axvn 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 and three resia88larmh6*xft6 smia 9 sj 0)v8sog+tstors are connected as shown. With the switch open as shown ajxtt+h lfs vs)889amr amo g66s80*iin 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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