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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 metal j/sv19ow bjm63 x)jm qresistor connected to the battery. Which one of the fo9xbso)j 3/ 1w mq6jjmvllowing choices best describes the direction of electron flow through the resistor and the direction of the electric 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 parallel, the_________eacu*zvvw/du+ f3h resistor is thz v*uu fw3+/vde 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 awxx6(k7n4a tn lightbulb causes the filament to become white hot, while thxxan(674k n twe 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 household lights l:stbbw+ 3(c care being replaced with LEDs. LED is the acronym for wlt3w+cs (bb:chich 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-sectional area A.-iz lka2tyqf +cr/ml9 i 7n:4d 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 thtczr9 kqid- n+4afy/l m2il:7e 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 m0fmi4lsw/m jtv. 6 kv*aterial. Wire II has twice the diameter and twice the length .v* t mf swj6m/i0vlk4of 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 an*y;ps3fo iy.z m-7kqqj7.j *4ny ma 3apk t,vcd half the length of wire X. If wire X has a resistance of R then wire Y woul.4nc3o*7jt;q-,kk*ipy. qa3amz mjsvf7 pyy d 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 ofbt/9g:v: dp8 cepw;oyen-5h b material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materipb pwh; tene -d::8c9gvob5y/ al 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 wanfl5k 8j;i 0ctg zus+i:ts to make a brighter light bulb. He decides to modify the filament. i:ktgf0us+l 8;5c izj How should the filament of a lightbulb 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 ar q/ n9.lrhudi(e made of the same material. The length and radius of each resistor is:r.u/ 9(dqil nh
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 resistance R, are connected to a battery qlo1mzvh9(v)oc*h3vqn+u5 b g5y b .gin the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This s9bv+u3h(mhgl.vq yq *g15b ocn5)o vzet 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 intn;uey azn:r07iju i+do 3;k.cernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 m:.ianoikn 3z ed7;rcj;y u u+0A. 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 thgncx*x b9l,+g ree bulbs 1, 2, anb c,*9xl+g xngd 3 - 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 currenbhkszbo7;nu ) .px1;ehme2q0 t in all three resistors is equal)n u;b e s7q.o21ex;0mbzhpkh, 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 r)c 3fpm-.h6)u h redunight represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb hp.6hncm)3 du-)euf r(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 concerning the simple circn-xpp,c wj*w w in+03vuit shown where resistors R1, R2 and R3 are have equal resistanw3j - pxwn+ipc *n0vw,ces?


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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 to a bathbhqcztgy(6+; ;b (0cr xps-ttery. 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 following choices best represents what is observr(-qb0c+ sh t6ygbh (;zct; xped?


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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 coulom y0 mo02;po vx0mfemik v./(+artkot4bs will pass through the identified resistor in 5 secondsvya t0mx etkfm/4m (0r.k2pvi0+ooo; 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 simple 1x4(g+oz bqm qcircuit have the same resistance, which would dissmz +qqg41bxo(ipate 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, ty 3 7m dbt)a+v2dmkc;ghe current through the 6.0 Ω resistorm2kadvb+;tmcg)y7 3d is 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 R1, R2, and R3 are connected in series to a battuco1p8if q) 9pery. Suppose R1 carries au1i8pp )fqc 9o current 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 Rev f5, )g dsge,yf7e-/3 tuemu1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across i f7d v,e 3g)gem-,/eufysu5tet, 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 volts. What is the maxim:vncota-kz60p9 i( bs b3sip9 um value of the curr(-onips9b ics6 a:3z 0p9kb vtent 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 resistance of a 60 watt lightbulb desigq,mo2vzhq+zg8a +w +uned to operate at 120 vozoqg 8qz+mv2aw+u, h +lts?

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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 disvu8lhxmnt r8fb9i2 8o7(mqf )sipating 36 wattsm)r 8bnf8u7txq8(holf i v 9m2 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 "1( -oqff,n tl5l20 volt, 600 watt.” In normal use, the current (o-nf llftq,5 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 *4sb1 zjfts:presistances could NOT be produced by a circuit containing os *:b1zjpsf4tnly 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 elk8he) :n2 msv0anou,uj)ke2 (a0ug1.0 Ω resistors. Which of the following equivalent resistances CANNOT be na )2os e0g) mnke 2k0ua:u(luj hv8e,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 be connected togszspel tp9)ox x;o5 +,ether in different configurations. If all three resistors are used in a circuit, how many different values s ztx5o xop9l, ep)s+;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 to8s17tkk qoth9otq2 /w kwgig+uo63(xtal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors arewtkkhu7o oq x( owtg983/g+sq16kt2i 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 R,2 - -lfyxs ;jmg.06 zsnfn1)ukv tovegch*j(2, are connected in parallel;xe )g-tg j nhlvzu fcv1m(y*-ojk. s 2f6,ns0, 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 dempqo ru8xk- 3+signed such that it has a resistance of 12Ω when operatingr8 -xk q+po3mu at 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 througwc +f,ljuv7 2eh a 4 ohm resistor that is dissipating 36 wav,2 +cjwf uel7tts 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 1239l :m5h 0aiqvu xjqo90 volts. If the price of elect3o:ljxh9v5uq0m9 qi aricity 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 contin9 ec5r sh1* d3gjflug*uously for 1 year1 guhd5s3*9l*cgrj e f 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 4.00 A through a lightbulb res ,2cewhmf-)ymults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the li cyhmme-2) fw,ghtbulb?

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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 wat, qt9 ;8rujk-id)h.k ejen 40k ot7edgts in a 120 V circuit. If all computers are plugged into a single circud;q7enkrt 84jo eik )utk ,g90-je.dhit protected 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 simple cgk; raou e98g7ircuit as shown to the righ 8;7kaue9gorgt.
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 simplckoxt 9eapq+ 489 2kjws4vgn8e circuit as shown to pw +9jx 4nao9 e8ctkqgk8v 24sthe 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-g6hubp5umz,ai9t 6em8 c1kukj8/sz4 z-xx h, an 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 amperesup1/mgbm- 6ikc8u 8uhxe-a95jkzz, t sxz64h .
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 g;n a-se8xyr0 mqk)2f ammeter, a switch and three resistors are connected2r )xq0smy afenk8-g; 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, ane5ux; 3kexfnw-xp cx2g3x9. o ideal ammeter, a switch and three resistors are connected k ;engo-2xpfx3cx 53u .x9exwas 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 to ecl/ xiu1sv6-3ut x 5cthe right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors /vuu 5xc -x1 liet36cshave 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 sh,pp ubtt 0a7un nl+k4k1s+*zp own to the right with resistances ku*n7+p spa l4p,+nzkbut1 0 t$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re4s7 t 0xm7dgwusistors connected in a combinati 47tuwdm07s xgon 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 resistor) uue8gmkimqrv 9a8nm ; a46h2s connected in a combination se)g akrq9;4ev2n 6hum8muim8 aries 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 ;j (je-oze6y kfq0uk60uka, a are identical. Which bulb will be the briaa ue;f0jj kko -660,ze q(ukyghtest?


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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 switc:,ff,t-vii7 ehvjj -ch4hq 0 s ofyb 1di*nz0+h and three resistors are connected as shown. With the switch qf s,4vhydzfcj,-:v 0-*the ho 0i1jbi7f ni+ 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, a switch and th(.z5*q(g gl27vo wzgaenav 6 cree resistors are connected as .a a gv (cnev*w(2lgqz76oz5gshown. 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,1g1 9iac. l3mj0sogpg gtpk ad70d +,o a switch and three resistors are connected g91lg.ja 0o, st3igpdmdkac0 +opg7 1as 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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    总分:50分 及格:30分 时间:不限时
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