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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 +s8*adj ycfsvxdw25 ,bbc,-i 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 elav c, y-sidfxcbd ,js+b85 *2wectric 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 connectedx2c;:jbqg/ 3szb gx 8x in parallel, the_________each resis:2b/3qb gxz8xxc s;gj tor 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 thin filament wire of a lig4* zrc2hlb o*vhtbulb causes the filament to become white hot, while the larger wires connected to *hz*cl4r vob2the 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 rbqs1 bffn1 t9x5ghw9svpw 21 .eplaced with LEDs. LED is the acronym for which one of the fopf tswqn2wbxfg11.b s951vh9 llowing 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 are5b5 ) 7topm rtx(c*f;6xhud xta A. I p;u6 x )h*5txx7ctfrmdbot5( t 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 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 material. dzol/tfw m:/6imolcmnz078 /Wire II has twice the diameter and twice the length of I. If I h 786 d/w/l:ooinm zc/ zfmmtl0as 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 material4g)4/pl 2afpodelcnud2 :vk 2 but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistan fauol4:/p) d pce22l2k 4dgvnce 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 lengt6.(k uk tibon)h 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 materiak)b k.no(ti6u l 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 ww9ebq4tf 2s m-zv76hnants to make a brighter light bulb. He decides to moe9 -t42hsqwmv6zbn7f dify the filament. 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 are made of the same/1c odlmq -k :kkq )go7rge72r material. The length and radius of each rre7dk71)kq:m c2gglor/ -oqk esistor 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 resistance R, are connec89*yjnvlpxb (*l8(izwv0r bx ted 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 wp 9lb 8*vjxr*0z nx l(8byi(vto 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 r ;g vha4tu5od)f*.f gcr1zgt*i5l n5 besistance 10.0 kW d h5u41*rfb*5a t.fg)ngozci; tgl5v and the ammeter has internal resistance 25.0 ohm. The ammeter 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 compound circuit show.a vkzd9cobayfc )3;3 n to the right. The three bulbs 1, 2, and 3 - 3a9yovk a;dbc3 z .f)crepresented 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 currentfj t4ojzed*.j ge;j(;*p,fbasnby 45 in all three resistors is equal, d ; eetyn4fjojj4zsb*;j(* p g,b5fa.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 com0aks0wg /a(ok0oq,b nhxxn( 5posed of 5 idw(o50 /0(x,qakanxno sgk h0bentical light 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 following statements is NOT true concerk(0*hc vlj46 (znjzsv-n w2k ening the simple circuit shown where resilevnz-4 zk (sck2n 6jj (hwv*0stors R1, 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 connected in series to a battery. Bulb X isrc1b28cqz/ wqs4o-1 .be ltgb brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the szr gq/wcsl .41b1btebq8 -o2came 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 4ymew mxv y/ura tv.l,x 4.h/. through the identified resistor in 5 seconds oncevua wv/x/mlh.,44t m .y .erxy 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 followiec -mbe38b n;7qlydxkj +) (i*(fmdplng simple circuit have the sami-kej )mnex*l +(7b; pdldm fq(by 38ce resistance, which would 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 8 0hyan p94 ts5rpg.hwcurrent through the 6.0 Ω resistor is 5.p phy srhw94ta8n0 g 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 e-1fcim( 7jpd1k a7mkR3 are connected in series to a battery. Suppo 7dkj7maf p (e11m-ickse R1 carries a 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 ref kgjlk:jh49 yn;-ntp--k wy(sistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,lwt9ngy-y: j- k-kfknj;ph(4 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 9h3chrtx f 2k4: *g(ls9wymu m1200 watts and 120 volts. What is the maximum value of the current under the 2kc*wshf4 9mt:hury mx g39(lse 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 waz6k u0i9wxnydnb1v/ ( tt lightbulb designed to operate at 120 volts?6v1n uxy/(wn0ik zbd9

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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 sgb36x yo :i6/o /ha 3aey8pqcohm resistor that is dissipating 36 wattsc:eab/qo gi6ao 6 h/8y33psxy 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 ustl8)cux9 zra hivnbk+:r 0c8mf(-1k med to press clothes is marked "120 volt, 600 watt.” In normal use, the current imlznhrtvkmc1-c (+b 8i r0f8uk :x9)an 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 c(qx )a)air- -*uu/k odg mihg+ontaining)gi )akxqhmo + u*/g(-ad-rui 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 Ω resi 1va y. .ucazxr+e9 fd6:l9klfstors. Which of the following equivalent resistances CANNOT be produced usy:k ca .+. 99a1uffldxe6lrzv ing 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 togethe:lj;tot xk3 s:f3/ia.8 e dgcyr in different configurations. If all three resistors are used in a circuit, how many differgld:js8k xi3caof:/ tt .3y;eent 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 resi/c qbqhrp96sw.cd) b ;stor 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 ide;hb)scqc96.bpqd /rw ntical 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 resistors, having resistance R1 anxuu5g9 ky*:),x ogq1y)x ydge)ih6dyd R2, are connected in parallel, the equivalent resistance of the combination is du kygxuxy:ho6dgq15yxeg i )y))9,*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 resistanceaoj.;i u 8s0mn of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from ;mi.8uajos n 0$15^{\circ}C$ 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 thmq)-1vbv4 f. scgqx k)at is dissipating 36 watts of power 1-vbvm.c qkq4)xg f)s?

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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 connect i-nvx,bg-wc0z u*yv ,ed to 120 volts. If the price of electu0, gz *c,--b ivyxwnvricity 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 coao. +rj* frad-;w8m dnst to keep a 100W lightbulb lit continuous aa-nr*j+dd 8;.owrmf ly for 1 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 current of 4.00 A through a lightbulb rerh cyzii:71 k-lq *q-xsults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancexh*- q1rlk z7-qc:iiy 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 ram07xe5ql iqa he44 /gzted at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere7glqe z54 m4e/q0iah x 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 si: g((u* mmhhe:gry; ukmple circuit as shown to the righeh;gmgm(:u:( hrk * uyt.
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 con3qwb x.av7g ;wnected to four resistors to form a simple circuit as shown to th; xwvgwb3aq7.e 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, an ideal ammeter, a switch and ;oljnn lxq *kdge: 9uth -(05hthree resistors are connected as shown. With the switch open as shown in thgh e9jnn qth lxd o5:*-k;u0(le 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 andbxw zs5t- )9:amug*v v three resistors are connected as shown. With the switch open as shown in the diagramaw gv:9-mu5b vz)xs*t 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 three resistors are conn uw(u 7* yehz /8sfkpi((utyz7ected as shown. With wz 8t ( 7uf*y/syi((hukpeu7zthe 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 js;n,b *1wl)yr c)/awj7 mpjgshown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and )lrj;nag, 1)/mj bjws7cwy p* 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 circ.kb*kvx9: b)mm h3)dm1 pe mcncc7y8kuit shown to the right with rescm9 pcm73v1dnk :bmy ekch8k *b). x)mistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identinqkt8t yd+b3 5lcd 56 p;tw0yucal resistors connected in a combination series and partnqdy+5u wkp 8 bty 35;0tlc6dallel 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 idepk36r;jo.6x6 f s: u)m ipmlrzntical resistors connected in a combination series and parallel circuit to a voltage sourcop3ip6.; ru)j:r zsx lmk6mf6e.
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 9g, kwx fo*2i qcuro2* are identical. Which bulb will be the brightest? rocuk9 *x2gio,w*fq2


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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 switcdet qo+4:nc:j1fh 72v /1vurf1vuc qmh and three resistors are connected as7mcu h: nr cf+q feqv11dv12tu v/4:jo 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 battery, an ideal ammeter, a switch and three resistors are ays) s8(nivmd-yq j5,qexh,2 qt+,yd connected as shown. 8dihq+y )n 2v, eaj-tmsqsd(,yy5x,q 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,zpw wtce,b: 19 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sh,e1cwb9 wtp: zown 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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