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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+-9 mh ux5bpqq 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 interior x59 pqb+-h umqof 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 resis9o7 kfx8uywkp /5 ca2ators are connected in parallel, the_________each resisto 97a5kk c/fw2u8ao xypr 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 lightbulb causes the filamguo 87(**fx.g fz li,oxylv y/ent to become white hot, while th gygol*,. xlyxouv*fi(f/8 z 7e 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 are being replaced with LEDs. g7szrd686f n jgy ,;baLED is the acronym for wh,j 8fy gbn;dazs66g7rich 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 lenv.hl 2r-b nrp6gth L and cross-sectional area A. It is to be placed into a h pv2nl 6.-brrcircuit, 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. Wire I6ebkltv y9t8juye (7rz z*1e4nl +(wdI has twice the diameter and twice the length of I. If I has resistance R, II hy (n k46le j7wve9(ude+8rlz ztyb*1 tas 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 and half t0qsllrlhh1 v-k+-2i ohe k-+ s0hl1l2liq-orvh length 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 cylindrical resistor has length L and oc n(x+2i : a1)-w1 an1rmqif+lhnqmlcm+tb,radius r. This piece of material is then drao-( ,l+tl f x)11hnqnrn + iw:qcc2iabmmm1a+ wn so that it is a cylinder with new length 2L. What 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 wants t1 c: )lr:bzozzo make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given:zzlrc) 1:ozb 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 resistoriula4j,oyjfztv.p + ) .g h*l 2vmqu:0s are made of the same material. The length and radi,.qoltj 2j myl:afpv0u gv*u )4 +.zhius 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,(3aj28 t2e0x egww fki each of resistance R, are 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.” Whatwe2fwkj i 0ateg38 x(2 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 accoaj3(k4ojo( 7xmseli7yljjlg b2z 8/3mpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly(j js47 3ix7e k(o8ljl2g/3b mjao zly:


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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 righrgtgs9 3iw:w ;t. The three bulbs 1, 2, and 3 - represented ag: 3gw9;rwsits 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 tho v3h m1yt90n usdp,g(e current in all three resistors i v10h(mpoy, 39dgs utns equal, 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 of j8 hox+e;l2 n rpts+u45 identical 8o2 ruh ;nslet+jp +4xlight 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 c/xzu zzi okeqf3-c+ w.;e5s9uoncerning the simple circuit shown where resistors R1, R2 and R3 are have equawf.9uzeo;cs 5+ kz-e/zx3i u ql 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 ddqp/l7y x67 zga;rl*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, which one of the followi67g r*z 7pxddqa/ l;lyng 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 th 0/wv*hnx-r4-rmp syv rough the identified resistor in 5 seconds once the circuit was crym 0n4v*s/xhp w rv--losed?


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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 follow dy65jsjz o/ q;wh1f .gb1:biting simple circuit have the same resistance, which would dissipate the grebjwy1gf/soj 16 i z b5.:;tqdhatest 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 currer6ams .;( ) ysf3ibymtnt through the 6.0 Ω resistor is 1.0 A. What is the powerbfmya 6.rtsmy()3i ;s 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 fgmkdit(opd: / h f9bo+3*vz-a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω,f9oidt pf g(d */k+vh3b:-ozm 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 R1, R2 :)6k zg ( vddft/uuyrvvj)16randR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is v1 kj): /uuy z 6vgv6ddr)rtf(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 rar p.j ,n.lwb7zted 1200 watts and 120 volts. What is the maximum valuz rj wbn7,lp..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 is-4fujc 0v1,i: wkky60 watt lightbulb designed to operate at 120 volt,sf- yj ck4 iwki0uv1:s?

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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 dis 2litgq bto5pox oru/xj205 79sipating 36 wattso5bupt02x 9go2rl i7ox5tq/j 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 "120 vo:l2h*( uh.c7: ygs9ryzfdsi ttq nu)8g2 n8 gvlt, 600 watt.” In nog:9)hid ch ygsfn8r vytg : (lu*s.tu 27qnz82rmal use, the current 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 resistancest0f3f2j jj5rr could NOT be produced by a circuit containing onr f5jtjjr3f20ly 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 resistors. n7azuaj;z, .f Which of the following equivalent resistanceaf.uaj ;zz7 ,ns 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 convuq g:.8o h0clnected together in different configuration : c8guhv.l0qos. If all 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 resistor is connecte(.b2 gextxq r lc4uf)/d to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connegxr eb(uxc 2 4)qlft./cted 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 resistance9yf2ztj9aw:ya)awf.h35 i lf7b 1meo R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemenflwiz2aah w 59f91eyy7ab:tj) o3.fmts 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 resistance of 12Ω when opere.z7p-b) mprefnq );lating at 120 volts. What is the minimum amount of time that)rz 7m pbef) pq-;n.el 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 isj) i+v6gm u3o n,.w2vbk8eikt dissipating 36 watts oo,2i n.kg+v8eikjb 36wmtvu)f 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-qibrjhl 2:c *q6kz9qsb/j-t when connected to 120 volts. If tt 2 -qqch :zbjlskri/jq9* b-6he 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 lightbulb lit continaj5 2wd n 7,08d8xps-ylygok juouskw8 asnd7o gj j-5yl2 pdx08,yly 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 .1( af * ogi+pj6umypgA through a lightbulb results in a power of 24.0 W associatejm+*ou 6 (agp.gy pi1fd 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 fa +ey,c*o ; w:s-shflnhmily of 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 fuse, what is the maximum number of the computers can be opnh +c-o*s ,ef; slw:hyerating 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)a*r f59ga;5lxv pxtj resistors to form a simple circuit as shownap )gx95vt*5l;x ja fr 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 t) r unh: 3x2pqfl9byr7o four resistors to form a simple circuit as shown h x9uylfr 2q)n7:rpb3to 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 threesr)m 8 h,,ync qx;ur, j8thff7 resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amu)h;hc,,rrn f,xq fs7 my8jt8peres.
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 ammeterspdg d6ue .6us3u5 up2tj 1my*, a switch and three resistors are connected as shown. With the switch open as shown in the diagram th63d e1utd u u.psu jsg6y5*mp2e 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 resirp4 jn0:gn5u ustors are connected as shown. With the swun5:p n4 rugj0itch 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, gdixu*nj-oj rp6mrigt57+,:what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resis iin,:rr jo7 5txugm+d-jg*6p tors 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 shown to thele n; )fh;ag5(5us37uu yfxld right with resistancex ;fsead;n)huuylu7 f55 lg(3s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 comy:ab 6vev4wh+ bination series and parallel circuit towe+6:4bv ayvh 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 yrznl8++ kvv2mz 70du resistors connected in a combination series and m+2uz dr7lkz 0+vn y8vparallel 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 identicybx.o)rk 08d+mb.bt v e4 ce04icb jb0al. Which bulb will be+0tbb4cvixoe0r4 ) b y b.kedbc 8j0.m 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 ammet:1h7ue fk w7.skajs5 ogl-kc 6er, a switch and three resistors are connected as shown. With the switch open as shown in th 6k 75aekh1 s-cwjlgf7. uos:ke 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 rsjxoh r 5yd/; ) ;b.yqg5jh6s;9u o-fdonvz-z esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampergjsbodh 6hszd;-y fzox5y.9qv -;o;rn 5) ju/es.
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 hebd-t1kfgmsz5 cic2p m7 )8+ ideal ammeter, a switch and three resistors are connecibm-c 7et)pc mgks5+d8z2 1fhted as 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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