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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 exist e:l:fsb*v cn(s 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 inebfs : v*n(cl:terior 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 ixuqtp35* n:jsd0i -zs n parallel, the_________each resistor is the sam nt:sd5xsu3q*z i0j-pe.

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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 lightbulb cactv+vu5 em h,;uses the filament to become white hot, while the larger wimte cv;h 5+,uvres 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 house.knnij fcjuk98xa a m*i:p 066 2xcu-phold lights are being replaced with LEDs. LED is the acronym for which one of the followu9mj- x8 a .k0 pknj2:6if*cacxu6niping 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-sectiond7jfgh s1a l;ylci*;2al 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 cs j 71cif y;gdl*2lah;ylindrical 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 offyzsz6:wh a64 the same material. Wire II has twice the diameter and twice the length of I. If I has res ay4w6f:sz h6zistance 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 twr01j2r66rtn0 w q ni4l6yrhvkice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance ofyi rwr 4h06k1lrtq2vj6nr6n0

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindricalicf1svg y dhs7lj)n+ aw8o4p9 -)e.et 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 process)fgnhp9svw)o sdtie4+. 7-j1 l8 ecya?

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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 lifwaulb9 q 7w y+gnsq,/m)z9 2yght bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make ty9wbqywma g q/s27l9nuzf +,)he 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 cylindricaneybwut7.)ga 3)jv7 jl resistors are made of the same material. The length and radius of ebvt)y. 7nujja 3w)g7e ach 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 resistance Rl: u k;blb3g984mes zn, are connected to a battery in the following wanzk l em38b9;gu:4s lby: “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.” 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 d6no6 ( .k5a ghn dfx(p:bpgy)tiagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The vol tk6gdop(fhg.p x )5ba(nyn :6tmeter 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 *kwd,totapb hu xb 1hvcp:;94f,- b-kthe right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrappwkk;d- 1 h*,tfxab bc-:u, bov4h9tm
- 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 the9 xk5 afbs0j ekwwe+yg2xxv9 t,0ss: ( right. If the current in all three resistors is equalt +k f5ws0 kwxse2 0,y9avxj(9bx :esg, 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 reytg1yhh zx63o nk7: e+presents a simple electric circuit composed of 5 identical light bulbs and 2 flash6hg7etyn k+ 31oyh: xzlight 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 concekskfc27iu 7( o .xb8hsrning the simple circuit shown whe(s 7kk7 u8.ofixhb 2csre resistors 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 and yfjh qqu;/13fY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuitfqj qf/hy3;u 1 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 identif7;mxq* zwz c1y ppj23nyb6 pe4ied resistor in 5 seconds once the circuit xcpb1yzym 7pq3;2j z6 npe 4w* 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 circuit ha:a4i+ afi1peo l9g*myve the same resistance, whiya+io 1f:l* egm4ap9ich 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 current through the 6.0 Ω rezgbfnv 6v9qk5f gj r01wfs :4+sistor is 1.0 A. What is the power supply vol gq4g6kw ff5+z b:r9vn0v jf1stage 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, anday kdo6peq 13 8x 4o6i+fcfdc6;r;kiljo6g-h R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 6j4+oc 8 ;1d6o -eo6cx l6;fadk y3hkiipgfqr3.0Ω, 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 Rxhadlb4r ;x pv 6/o.1 e8on;zm1, R2 andR3 are connected in parallel to a battery. Su84 ob;;xl1 hrx6e m/pzvona. dppose 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 ratemj bqpyt/;k+ .d 1200 watts and 120 volts. What is the maximum value of the current under th y.b+t pjq;km/ese 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 120 df; e+xjvfod2sh/v 0+ v;vedxo jf02 /dfv+hs+olts?

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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 curreqlo 4d6 n,vrb;l mw :arb09jl,nt flows through a 4 ohm resistor that is dissipating 36 wattsj0b64vm rlwb9o qn;rl l,a:,d 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 sr+ ;j-otmp)0pth8k x-.cwv rqagh5- used to press clothes is marked "120 volt, 600 watt.” In normal use, the currenw h -)tk 8g+js-t ocp-mqvrrhax0; p.5t 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 byj8czn*j*9 r vywfsv :8 a circuit containing only thr*yzcj8wv*vsn 8 :rf 9jee 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 resistors. Which of the followingan7 ou+,.vw+fceybp - equivalent resistanc7fy -a ,v+c.+pb wnueoes CANNOT be 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 connecj o,,2l9lian/gqyt+ qted together in different configurations. If aj ig,+a2 oqq,l9nt/yl ll three resistors are used in a circuit, how many different 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 re+)a6 eujaf f4usistor 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 identic 4a+ ueuf)fja6al 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 R1c qgthwzr 0z.x3 j/a)6 and R2, are connected in parallel, theg zht.zxaj/r6c0q3w ) 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 d /u vnl3yjm-5xesigned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.4nj-/m5 vy 3lux5 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 thro/dcb((84+ wzz/x3mtq as qf ,tk fqso7ugh a 4 ohm resistor that is dissipating 36 watts oz4k+cd8t zws(oqfq3/fa,7 s q(m /btxf 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 heg +g wo+81idnp;gvp7ppw+9px pe gd7 )ater draws 13 amperes of current when connected to 120 volts) i n1+dxw7evgdgpp g8pp+w+; gp7po9. If the price 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 lightbu8hpc a 7 gh0kjpg,6sf:lb lit continuously for g6 a,c0 78spfhhjgk:p1 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 lightbve bn2g m b,,g74k5dd2k u;ua(1p wvu ka7(mfqulb results in a power of 24.0 W associated with the bulb. Which one of the fol,u n(1f52 vk ug 7vmd u7kbeag m;k(q,b4wp2adlowing 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 cca*: xq/x.+7iab bnesrd+-au1 i oix0 omputer 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 number of the computers can be operatingx xxbi a+a0 d1b/i7o* -+su :qnice.ra 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 isfg,ycg7 :xaab- o 1-xg connected to four resistors to form a simple circuit as showx 7ag1g-x,- ybfcaog :n 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 simwg*./x kh j9ocple circuit as shown to the righhk /gcx9ojw.* t.
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 an9m dcho/1+ uwmd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2./ m+umdho1cw90 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 twvq7ui* f3w d 56hzq2phree resistors are connected v5fwu hqd763p*wiz2q 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, an ideal ammeter, a switch and three resis2 8hylqjf:)j*xxqj1 xeo,sf6m -o v1stors are connected as shown. Withs:m1 ,fqj vjesj8ol2qx ohfx6)- 1y *x 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 circu,a.van1 8-q ptzxm(hyo 0 cpp6it shown to the right, what is the equivalent resistance? Assume that all wires are ide0 z ,8(paq- vncpyoam6 1t.hxpal, 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 resistance of the circmm d5p+5woi w,uit shown to the right with resistances o5ww p,d+im m5$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combicbt;y*q v;h/p9akjy1 nation series an kc;p/ h*ayq;yj9v bt1d 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:vaf yn, -fld.kkl jle5+3pj *s connected in a combination series and pe-fav*p j5ld,f:lyjk+ kln3 .arallel 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 wme gm2-65 xw6p3hz p3tfoc))e k vdk1the bulbs are identical. Which bulb will be the brightest?3-3wvo6chm) eexwpdt)5 fz26k1kg m p


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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 mmowsz j.16 cg(wpa(3ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereac36o.mgs (pw(1mzw js.
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 amm- /ad:7 3y bkcxs1iofzke7g5 qeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads:57o7q1ac -3fyk/k be idzsgx 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 t1 7 ;bjfvpsni/do6ia )ixss ..hree resistors are connected as shown. With the switch open as shown in the diagram the api ;7jvsf1)oa/..sxnsi6db i mmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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