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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 electrv d; g6+*jtogaic 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 tg+ g *jaodvt6;he 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 resistb.ij kexnx* p1 xx92*pors are connected in parallel, the_________each resistor is the sa*e*kxx1 2 bpxpin9jx.me.

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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 ofpg.uly+zjfe;;e5e d g) 6qjo) a lightbulb causes the filament to become white hot, while the larger wires connected t eq).jzugd+g);5fjo 6y e ;lpeo 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 lighjqbarn/,2h c+ ts are being replaced with LEDs. LED is the acronym for which onhcjq/a+n b2,re 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 u3u;dck vrpr (. r9vs/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 cylindrical3s9/v;krrurpvucd( . 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 0lfcr;8:bi9x n zfd* ft0meep-9 ;iuzsame material. Wire II has twice the diam -pteimdn;ei;fffu0rcz*9 908bxl z :eter and 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 twice the diameter and f9n )1bd(b9si28 dwhgshyb x9half the length of wire X. If wire X has a resistance of R then1hd bid n(9bx)2sywfsb8h 9 9g 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 l4:flb6wlm0 pappj ak 29a3x1has 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 bfmp0l alaka :1x6j2w39 lbp4pecause 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 want6p.zmvzowz 147tey f ;s to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified ftwe 1;.4v7po mzz6yzin 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. u9r1 qsdbv9o:m45hkvc6b7 r: clri8rThe length and radiu:bc9 osr4d 1kr8rrv9mchu:qi v56lb7 s 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 ofh ag0ak:a7 uq+ resistance 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.” Whatga 7a+:uqkah 0 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 diagr35ew h+q4 xf fm yw8pr4v,xvd8am has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mmhyq84 v4,fe w8wxpf+vxr5d 3ost 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 c vur34ss1 7mts5o(,wyj)k o5epw. t4wqryi5rircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resis ) .eikwtyrv54tm 1wrp ssjy(o4sw35q r5ou ,7tors 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 tr47t3luv0,ittw a*qkk . 9mzd:a cxo3he right. If the current in all three resistors is equal, which of the following s*vx3mw 3 zi.,7tkot ak4qat9cu :d0l rtatements 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 represl)a )p swfaynzof97 ;)ents a simple electric circuit composed of 5 identical ligh9fp)7af yal)sow )n z;t 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 followin(s,1x5(gim sv r9g rlr( vin0vg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? grmrsvv ,igsin(5 (v90x ( 1lr


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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 connected in series tg5yxo +1zld iz*aa25dk* i2p0cmc:rj 6 -cwtto a battery. Bulb X is brighter 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+ar5tgoj2m*l-a ckcpi6* t1yizdz 05:2cd w x 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 coulomb3 jo5ew3dhccs b pv;;0s will pass through the identified resistor in 5 seconds once the circui ojc3bc0ep vs;3h;d5w t 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 simpwd4ber zimuj + jdk m)+,5bb5,le circuit have the same resistance, which woul ui)+k5m wdem5bd,b ,j4+jzrb d 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 tux . jlu9baw61i 1fh0ohrough the 6.0 Ω resistor is 1.0 A. What is the powerf.jh1u 1alx069oibw u 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, R2ky+;qrnw)bsqm h3u7 7, 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 6.0kbw qmq ;)77n3sh+ryu 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 resr0 u1nw d34 voxkr6w yr+:+fuqistors R1, R2 andR3 are connected in parallel to a battery. S+wx fky r013uwrq6u+4 ordn:v uppose 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 w;wva9w boy7z vn/x 6sm bm.-d ckqy97+atts and 120 volts. What is the maximum value of the current under these conditq mv bd+7on w;.9- 6y/wx9mbsz7ayvkc ions?

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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 desige y g6ghidy,xo)q/7ydwkr7 -8ned to operate at 120 voltskr7ydxy w h/i6ogqd- e7y,8g)?

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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 flo 3y 4z/ahegab:0bhm6cws through a 4 ohm resistor that is dissipating 36 watts z0a6e c34abgy :hmb/hof 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 ib lxo.k/-pvm/1(5qmi 5)p +afhgcst "120 volt, 600 watt.” In normal use, the ctv5gfcamkispxm+ /-q)5iob ./lh(p 1 urrent 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 resistances could NOT be produced by a circuit conwu5 +j*c:kxpstaining only three identical 6c:wp su5*+xjk Ω 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 fqb5cc. q5wvq,.ha /j Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistorjqfh 55aq.wv.cq b,/c s?

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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 u ,ea g0q-y3g)nxm buvf8wn.ry ,*vn,of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resis,0qru)-nwygb, yn ugxfv3m* v8n a,e. tance 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 resisge3y.mc n9tv le8 g-n6tor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistml86cvg-3 .t9nen g eyors 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 +w4 -jj0kl -ahxxdc( aconnected in paralle04jchw(adx -xk jl-a+l, the equivalent resistance 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 o +o,n.c- qsoa 54eholthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would ta ,+locna5h-oo.e4 osqke 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 throughmuu9 ptq+18q()mlphwck06tz a 4 ohm resistor that is dissipating 36 watts wp 1l+m8 puu9)6(htt0 qmqzck 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 currenw)7mue3rbk *e t when connected to 120 volts. If the price of ele3u w kbmer*)7ectricity 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 69bqcphw .v8ja 100W lightbulb lit continuously for 1 year at a rate v.qc9p68 jbhw 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 abvd 64d *cn7xq y--mtz lightbulb results in a power of 24.0 W associated with the bulb. Which one of the fdm-xyn6v c-q*47b tz dollowing 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 computer rated at 500 .9d+e1dql/ gpx2q :dyxy wx.xwatts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximumqg2xewddy. 9qld +pyx1/ x: .x 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 simple5bglbck/ knw lsi;wi.3 dp0; bbm;:7j circuit as shown toilj i57k3pbws bb;c;dl /bgnk .w0m:; 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 four resistors to form a simple l.ansndpk 3 v.+z9 0sscircuit as shown to the 3v.+ l .d9kssna 0zpnsright.
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 resistkc. ,4qzfki hwou7v/-ors are connected as shown. With the switch open as shown in. qwui/ocf4-,k h7zvk 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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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 thjxj (/eo9zv 7v,hl f;fs jhl/(ree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 avh(v lfj,h(j 9/ j7 /oe;flxzsmperes.
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 three resistmhe 3 .rppxvrdy+(*mm 1(7 az0aj2wia ors are connected as shown. With the switch open as shown in the diagram yarwim(e pm0+varhd(3xm. j 7p*z2a1the 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 to the right, what is the equivalent resistanceditutnl 8*xbd31 k /0)n, leqe? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance ,1*teuld3 8n 0)ktn/eblqx di 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 rightjt;m *(6e.f hjxjj jx: with resistanc(jh jejxxf 6;.j*t:jmes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiv wj+ klo400pcqe identical resistors connected in a combination series 0+cp4 wqkjo l0and 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 resiscrwfp4+c 4on5 tors connected in a combination series an4pwo4c c+f nr5d 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 bulbset9 v9iv vrzsr8y j6-2 are identical. Which bulb will be t- r6i9zy9rv t e8svv2jhe 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, a3f1 p fzifd .m-c6fo7b switch and three resistors are connef.61ib f ff3dmop7c-z cted as shown. 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 batteg 1m0ml(nr l:r cf.c7ory, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rem:r.0go1rl7nc( c ml fads 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 jf0 k4jcc/ g9yq (ch.tammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagk0qjt94c(jfy/ c. hcgram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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