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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 ex1a+gzc1owl +qists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through th+lac w+qo1 zg1e 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 connecty 63wupvd:6h yed in parallel, the_________each resistor u6w 3:vhd6 ypyis 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 thi-ddt 1b v7u*jc)9dm,wu,w4 t l9riikkn filament wire of a lightbulb causes the filament to become white hot, while the larger wi)td -d ulcd,4k iiwk7j b 1uv*9tm,9wrres 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 repl(m2 8twk 6f 7oxllisf7aced with LEDs. LED is the acronym for whicskw78o7t lfl6x2fmi (h 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 cylindricaltrtbu)cz1p ki w,f-/(x3an g- graphite resistor has length 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 , upb x zar)ft3kct/n--(1 iwgratio 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 they)1tt*y zbg-4tejd4m:yqz -q same material. Wire II has twice the diame :byze md j4*1 t4-qygq)zytt-ter 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 uu u./yoa*t7q 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 resyou.q7utu/ a* istance 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 pikhg/id wh.2z9ece of material is then drawn so that it is a cylinder with new length 2L. Whah.gi 9/h zwd2kt happens to the resistance of this material 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 wan(o,avar u9u7 rts to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make , 9uvar7 rua(othe 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 materinb.e(ldtr .; zal. The length and radirb;.dez.tn (lus 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 resistance R, ary g(ek d/5)spwohi3x1pk ;/yee 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.” What is the equivalent resistance of th( dk sxp3yi/ew5gp1 yek/ o;)his 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 cib9 fn78trhw 40qvh8ov:whc 5brcuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is0hw8v4 obc9t5 8vrq 7:b wnfhh 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 shown to the n 3y romnj.-tuv( n2.cright. The three bulbs 1, 2, and 3 - represented as resistors in j3nv2( m- cyn.ort u.nthe 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 th; pe e 83wcrenju;ee0*e right. If the current in all three resistors is equal, which of t;e8e3 cp ;0reen*ewujhe 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 simpcr y+o: /vj*jvle electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (cyr+oj/jv*: vor 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 s*mkb(b8l+wvov2il v . ;yujd +imple circuit sbm8ky vw 2l od iv+;+*lv.ub(jhown where 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 andY are connected in seritwm/vk v,ktk),p f s7-nwd6s3es to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connnfks wk/k s,-dvw, p)t67vmt3 ected 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 v)sx:u(5oz1o isg;g1ia3 ef c pass through the identified resistor in 5 seconds once the cir3sz ig(;v a 51oei1cso:xg)ufcuit 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 z .h 0btbitgbdq 9)zwh c/6+ 0neponl58:0z epthe following simple circuit have the same re zi 6.8+hbn:leg/ze nbzc )p0 5ot0t0w9dpqbhsistance, 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,khcie.x;(l7vro6)3 rqvpmk jk- 4q8 r the current through the 6.0 Ω resistor is 1.0 A. What (8qhkcp7i; 4qm - v .)xje6rr lkro3vkis 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 k3rpd:b / 6h0m)cq+nppeu-otseries to a battery. Suppose R1 carries an /e-poh:u) r+bc 3qpkp6 tdm0 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 pey9 5ynvm(* xapn:(qresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 haayxn(nvy* pq95p: ( ems 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 watts anyx o 8ia3.ej6kd 120 volts. What is the maximum valuy6o8jai xe3 k.e of the current 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 6,uynsn; n tiu:w9g ,j6an7 )oc0 watt lightbulb designed to operate at 120 cgn nju9 s tu7no):in,wy,6;avolts?

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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 dissi9crr5yq u3y4 qpating 36 wattr4crqqyy9u3 5 s 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 i+xn/ul 9y5 dskl.oi: *-,ryzhp arwdl18mn v6s marked "120 volt, 600 watt.” In normal use, the current in 6z*l.d p/ 8 +halunrx1 iwl9sdy:m-rvy5n,okit 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 co;2cwa+izw ;reo5 q *aduld NOT be produced by a circuit containing only three identical 6Ω resistor25ec*r; o;z wawiaqd +s?

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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 resisqr. wv7.fv;wis;e9oz tors. Which of the following equivalent resistances CANNOT be produ9.vv7;f q ewr;.wo izsced 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 connectk4k0d 9 q0fjuipo3 uc6ed together in different configurations. If all three4ku3u i kdpf096q cj0o 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 resistor is connected to a battery, at qdnvdqp8 2i1ld 5j9h*mu9 s3 total power P is dissipatensd 9p h2qjv91q8mddul i5* t3d in the circuit. How much total power is dissipated in a 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 resistors, having resistance R1 and R2, are con ara(jh lez778:hw3nd nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is co 8alzrde n7w 3ja7:(hhrrect?

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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 i*h.a aisecu5q j 82vi7t has a resistance 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 from8sc e7 u vih5a.2j*qia $15^{\circ}C$ 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 is dissipaztf;s(be enoe; 8n2umc:3s9 nting 36 watos3m;nz8u :e t(e;sc 9nbf2ents 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 curku.r9m8ucvn ig,1p9- bo-*tu9lf c ctrent when connected to 120 volts. If the price of electricity ic9m g*.urltk9tofc8b9-v,ci1p -uun s $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 lightbuayea67 tp*68uy,50qd z jtu uflb lit continuously for 1 year at a rate5ujaqu8ya6 ted* 0zytu ,p76f 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 resr x5u d1,h,pxjults in a power of 24.0 W u1 5,xprhxjd,associated with the bulb. Which one of the following 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 watts in rhbx/;p ;6twi 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 prth;6 i w/b;xoperating 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 i/suy4w/cx 1:ue ,ttmfs connected to four resistors to form a simple circuit as shown to the: e c41um,tf/s/w uxyt 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 connec(q*sh -ss xim;ted to four resistors to form a simple circuit as sho(;m*s -hsis qxwn to the 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 th-5ylz/9ht)o vg 1wzm y-vgp/ gree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 tg--9zzyhvw5g/omlv1 p)/ g y 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 an.m)wh pt+g7 udd three resistors are connected as shown. With the switch open as sh7h) d. +ugmwptown 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, an7njqgd4* uvtuv09n9q r h2+zb ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sho q0uzn9vdrb2n*tu9 vq4ghj7 + wn 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 equi o0u.9t h ur9,3oqxv96 ,k0tuwx ykjkwvalent resistance? Assume that all wires t xk .hwyk03,u,tvuoj9r06qx uo99 kware ideal, 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 equivalenp+ jdjzqc or:x x,lg59/0k w)et resistance of the circuit shown to the right with resistancesqe )0c/ xl5+jkz rjwxo :pg9,d $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatipsszbvx i)40g1u*jejbkq/2x b2 56cs on series an2xb bz0xius)61skp c4 j*e/2 qjvsg5bd 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 resistors connected in a combinat *xoz-t v2g:*ji- )6svptv9 isqc9xy jion seri )t-vi*o9jg i6 :x pvq9c x*-sz2tvjsyes 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 are ident.sx n.v mo6*xl q.*j vto7ukv7ical. Which bulb wiv j. 7os otx*7k .x.lvm*qvun6ll 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 batterp kr4cdzr*pe6-xx/.ue d dp7 0+ obxx8k -pi,zy, 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 amperes. xb+*kopz p 7dx.-6c4r p0ri e p8dxzdex/u,k-
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 connmth:uv;dvz gn .: w/o8ected as shown. With the switch open as shown in the diagrh:ug vnwzv:t.m ;o/d8am 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, j/37 j, 9fqr.hcm kijqa switch and three resistors are connected as shown. With the switch opeji. ,qc9h3jm k7jr/qf n 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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