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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 *;)hh2pg- ltzf vc/o t5t7y.2oti cnc shown, 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 eleccy ohtf l.ptc v/;-2h2ni5c*z tgto)7tric 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 paralwvm 7rree+xa g9d:8*z lel, the_________each resistomrvga rze*xw :78e+d 9r is 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 thino6w.5tzb:t ju0qx mk4 filament wire of a lightbulb causes the filament to become white hot, while the larger j :0q b6 u45wmkotx.tzwires 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 are being replaced with LEkcxpd3akj1 ,vcds 7*; Ds. LED is the acronym for which1 ,xa*ddjk7vpcs ;kc 3 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 cross-sectiorr+.4 z(r99p uzutiqnnal 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 ot(ru.run+rp4 9z zq i9ld 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( 4whwnqos33oc /ktjy oic/47 same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistaw7 4hqwt/oyc kincj 33/4oo(snce

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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 hal6p ck9 22gy8xzjbmpr u 3rdq(cx37l1jf the lengt3j7zj92xpy6p ml u218kc dbqc3 rrg(xh 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 cylindricalk9a2yxe 5rwc2 resistor 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 this w9 xc5r2ekay 2process?

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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 bulb. He decides tjw 5 6zebna6/no modify the filament. How should the filament of a lightbulb be modified in o 5nj/w e6z6nbarder 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 amqpysrnj-.m(( i, t jbh 2/:vgre made of the same material. The length and radi(p b-gjyhrjt n/s.(iq m,2mv:us 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 resistancev i2k 0r1ft8uw2ogxjhsfc 0;8r/o7vc R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of8fowigu2xr kfsvhc r2v1/870t;0joc 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 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 diagram has internal resi*ql7 vvmloqt nk3;hrcn .2 *8sstance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammet8v2mlh. 7kl n rco*nqvs*q;3ter 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 bo3yhefx tdy h/ gt 5mr8ve67w91y:9lcompound circuit shown to the right. The three bulbs 1, 2, and 3 h31tgr x6e f7lhy /9mbye: tw8d59yvo- 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 the current in alj i-sg-)s:gf ql three resistors is eqsfqj-g)g:- is ual, 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 simple electric circuit composed 5m0qtxkz 5r, oo*0uv sof 5 identical light bulbs and 2 flashlight ,o0qskmzuxv0r o t5* 5cells. 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 tiew+k2bx,,4sr7:/3o) hhvqdi ah dnwrue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal wo ha: iqx+bhs hdv4,inr7/ek3dw ,2 )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 andYb xrl-u9dhiyo3*t*et 2d3gi99 k6g* zypa7a v are connected in series to 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, whic*xty ilo y9p* 3g*27 k-zrdub6ad9e vh93agt ih 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 ida37dv09ffzg e.23okh s.8fggzh ,ol nentified resistor in 5 seconds once the circuit wgz32 koad,7g8 h3vff oh lz.fng. se90as 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 simpja;i* q3g lo.zle circuit have the same resistance, which would dissipol;z*g3.q a ijate 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 cirni d*-e9p9 6q f-mhjeucuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply viuhj- 9*peqdf69 -em noltage 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 connected in series to a battery. Suc(u1dy . cr2anppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dis .u2an(yc dc1rsipates 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 res/:l/6 kz6yq 1ezcy on:k7lxseistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, a/nyl:s 6 oe6kylxq1 7 z/e:zcknd 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 42 ueo926ezu pr pxi(prated 1200 watts and 120 volts. What is the maximum value of the current under ther9 64(2ip zpep2ue uxose 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 operate at 1 2b58tb x p j4ge9(3tiyjpb8k-nx- ibt20 v 8p4-knpt8 9-bjig(jxb i xytb532etbolts?

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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 th3hl- uj tt9g2krough a 4 ohm resistor that is dissipating 36 watts of p-ht 9 tlugjk32ower?

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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 useyc qo hr)9e1kg+f(i6 dd to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it (fqkroycdhi )e 6 9+1gis

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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 byxva9zpp*mv9 i3+6p0 qetdbte,y1ni4 /sub4 q a circuit containing only three identicale6vpv,0qy mtz9nqipb49+ i/ s4 3 x*tpea1bu d 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 the following eq3nkdj4f9f6pn lp7m :pe *6vktuivalent resistances CANNOT be produced usingpkftne 6dj v:f4 7nk9*l p63pm 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 connected togetherr2bc7hd/ 2 rzr in different configurations. If all three resistors are used in a circuit, how many different values of total resista/zrrh dr cb227nce 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 cyqu5t -fauija )8 9)paonnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in uaqu9ift)y8 ap5 - )jaa 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 resistor jx u*0c 5//c swbwqf)4hu(na4)wpnz is, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the follo)f bwq/50zi4ccuxa4 hw(su jpw )n/ *nwing 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 desiitrpwg44 e. s-gned such that it has a resistance of 12Ω when operating atirs4 p4e.tg-w 120 volts. 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 resistor that qzdyx*9 bt9*pb9 u*s7mb(pks is dissipating 36 watts of powpt(sx 7 zqbu*kmbd9py **9b9ser?

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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 120 v2ui7*qx3eu9h pawa)l olts. If the pric hx2aqp7wi)e 3*9uuale 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 lit4v*pz78kwxg /rl6 m at continuously for 1a4tm glz8/wx6v7prk* year 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 currento .-;ln+ a2 owo5rs75bu xmdrl of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repreds rbo;loo5 ma2r .-n7w5lux+sents 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 *1,)cgo :u0qis4mpfa pzi(y l six owns 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 miziaf*lpo1qg0(4 )y us p: ,cfuse, 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 connect q .*uy5odg;vuc6:hlqed to four resistors to form a simple circuit as :qc*6udog;vylq5h . ushown 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 four resistors to form a simp0jdrfkaeysy:i3s jxuz :3; (, le circuit as shown to the 3 0;i,yy xj3s:za( rsje:fkduright.
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 zu4r3h x+ fsrq*j30 kxzi8d9my, an ideal ammeter, a switch and three resistors are connected as shown. With the switcik 9+4zdr*hqm3z ux fxjr38 0sh 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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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 resiofft;3w/ r( (u dyzf0sstors are connected as shown.(/w3roudf zfs 0( ;fyt 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 batteu 1beduq4 x:dh1,b-ufry, an ideal ammeter, a switch and three resistors are connected as shown. With tdd b1uuf:1 u-q4xeh b,he 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 to the right, what is the equivalent resistanceoq1 y-uhu-a 5i0vnw 7qwo/t w5? Assume that all wires are ideal, the battery has no internal resistance, and w7i uu qw/q1n -o-wh5o5aty0v 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 showw+ij 5bsi//c dn to the right with resistasi/c d+iw/5bjnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fqd9r43u sr(zp/9icg shows five identical resistors connected in a combination series and parallel crpu9/(4 r 9z3 cdsigqfircuit 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 f wz7 n9,* /.d kcftx1hgx4iwje ki4u5five identical resistors connected in a combination series and parallel circuit to a voltage g7c 1w9/,4kwkxxuhntjdz5f .4iif 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,le1 -c; 6a *tdkqe)kfo all of the bulbs are identical. Which bulel q-t)1aek d;cof* 6kb will be 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 and three re(e/xa uqv 9m;ho7 bm3isistors are connected as shown. Wibq (;mua 3m9oiv 7hx/eth 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, o zeqb d2)y4aogj 0hp z0gf2:( jjp5j,a switch and three resistors are connected gzjhz aj)dgo4fjpb:0 p52 , jo2ey0q(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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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 resistors arefyones+w;bupzo)8 ; 3 connected as shown. With the switch open asp u ozw3 o8;e;sf)ynb+ 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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