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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 currenfsnywcu a 85iq+5 v-tu,,s ,cwt 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 direct5qsn uw5, sua8,c-+wy t, vfciion 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_______2dw.8 iij ixdn:2n(7cj ea+;k0bj kdb__each resistorin:a(ebikdd;.j7jx2cdj bni8 w k 0+ 2 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 filapobs (n.(dv, cment wire of a lightbulb causes the filament to become white hot, while the larger wires connecte(d(, bov.n pscd 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*8vqj:7(//sbdwr4im m sge; t5c w ur;y p)uyhhold lights are being replaced with LEDs. LED is the acronym for which one ofre7bjwt :) uiy4wrh/*( mmuc/pg ;vssy;d 5 q8 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 zta6yxcf2 u; mu(qft/.b2w*v 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 ratio of the new resistivity to the old resistivity of the cyli*./x2;6v c2qt( yufwzfu atb mndrical 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 II has twice :zibp78dwqz.j z4 v p7the diameter and twice the length of I. If I hv.zq w:p7pzi4jzd 78b as 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 dia5vq5t4tdo6 te vzgc42m9o:eumeter and half the length of wired q vv 46 em2t5eog4:t5ctzo9u 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 rebvb,k +o-bjw2 sistor 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 thisb, b-kwbjo 2+v 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 to make a brighter p8i:wig0usqt b e. m.;light bulb. He decides tom.i. bp 0 t8:sewg;qiu modify 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 material. The lengthjs*2/ (rwgmvo and radius of each resistor igm2orvwj/ *(s s:
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 resisv j*3e6okz +z* ak6lslr:kg) wtance 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 ae*s a 6+z )or jk:*3g6vklklzw 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 d+b*65 x19q np+ebpmbf f+mxttiagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter bxen 5mx p + 9ffb+qtm+6*p1btreading 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 th*g8h m ;ijbpg13 upfv1e right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram g gjmp 3v1f1;piu* bh8
- 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 current in ay;51 wk , g.wvlnx h6wpxwqf7b8xa qm-9:-kxfll three resistors is equal, which ofy6n.5b k1,hp9 f vxw7fm-8wa-k:x gqwx;lx qw 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 2wnagn ar;+m ob*fc )7composed of 5 idenang)fanb ;om *7c2+ rwtical 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 statem4f a -pjzct xtpx70,p0ents is NOT true concerning the simple circuit sho40x ap ,xp cj0ttz7f-pwn 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 ser )b6cte;)hfj ries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are fb) ch6rjt;e )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 througnu:wo. z*(apkc a1xi-h the identified resistor in 5 secondw zc(.o-1ua:x*ka pins 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 followi5 xx(/cpgb n:jng simple circuit have the same re(x xj:gb5n c/psistance, 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 currentm 50,7 fuqplrlyhdl;oky*uf8b:+8d d through the 6.0 Ω resistor fud ,myhbrul 7fddko lq8+ 8;p0*l:y5is 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 batterk2r+z(r a/i-cqu 6uy2k(nai py. Suppose 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 2ca riqp -(nuk6ku(+z 2iry /aR3?

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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 andRoknl8 1sp-jffgj7 -8q3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipat1 jgqf7p n -j-kslo8f8es 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 watt9xqsb.es58 exs and 120 volts. What is the maximum value of the curre8 se5x9b.exsqnt 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 designed to opdtqv iz-hizhox9s(u5, 8 2:;kel,hwoerate at 120 voi e5qs:l,h89k uo(o z2di -zt,xhvw ;hlts?

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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 thhrz) ,w e3, kh;h;llwpat is dissipating 36 watts of power?e3,h )phk ;lwzh, ;rwl

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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 too8 s..rmy eri(0cud/o-k*/7 how pn hs press clothes is marked "120 volt, 600 watt.” In normal use, the curren m odi-8 c0or7e.(onh puy/s/hk.*rwst 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 pro1pk0ijwq;x3 k duced by a circuit containing only three identical 6Ω resistorx;0 ijkpk 1q3ws?

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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 +d7w4nh sr69lx ymaf 7 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all y4f9awrxl d+ 6m7hns7 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 c 8 rq 0cx f1*e2qa6xbbk/ihh2tonnected together in different configurations. If all three resisto 0 eq i qb2xxc/k81*tab2rhfh6rs 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, a total power P is diss wg(82cuf4qv3iw/a (yg rl: 9o fk5pncipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Asy8wgk/ g f 5qlwivuofcc(294n3ap (r:sume 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, hav lbqra n;h npc36v3s14ing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following s3cr31 ;lqans6bhn p4v tatements 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 is7x 0iiwvb+zs12 qav 7n designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thvq2bia +zswx 0ivn7 17at 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 is dissipating 3626-+eunkjr *o+ muu3(afc v kd watts 26na jcvo3k+f+(uu m*e-rkdu 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 120 9.y6def1ybz+ f/1o mftfceg0i ug -5r volts.gg5-bemfudic zye/+91yft0 16rf. o f 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 ,npp jk dig l2x: 4d7oobm7a.-keep a 100W lightbulb lit continuously for 1 year at a m4ddg,7bixkp lpj2n -o.o7: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.sw:z+q cgsrgng )6b/-7k5oaqz i2r0n00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance o2gz60 rgin /a z:rn- s q5wsgq+ckob)7f 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 ,h0ob) ,gf wsnq.h2qk0 wvs9 ka 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere 0,nh,h sf2.qo )9wkqbg vw0ksfuse, 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 fo*p55 lu a 9w .jll(gdga8:jattptx8o 1 7qwqi-rm a simple circuit as sho1xjpgjq:*pl55-tldlo g(at7w aw q8au 8 .9tiwn 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 7walc.0l g/cu a simple circuit a0wallg u cc.7/s shown 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 t- eiz/ff 6rvoqrh4v0*:4e z+qu(yx yp qs i5p;hree resistors are connected as shown. With th;4 i/6s*ov xrrf( yp:+ -uie0ep zqqfy v5zh4qe 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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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 anruz5m z80q/d ur s;zd)d three resistors are connected as shown. With the swit/;sr z uz85zmqdur)d0ch 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 swe 2 m6ftig)it+itch and three resistors are connected as shown. With the switch open as shown in the diagram + t6mfiteg) i2the 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 thpgevpzq7 :1 x4e equivalent resistance? Assume :xqp14 gpze v7that all wires are 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 equivalent resistance of :mik: 3hmf a: g(qswc dxjh*8ec7q+ 4ithe circuit shown to the right with resistaai3 hc8:xh(e gi f:c: jsw7mmqk*+q4dnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idwmc.:c - ;sbte29ndxwentical resistors connected in a combination series and parallel circuit to-9;cm dbe .n2xtwwsc: 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 combinatie:f *6g;m/12fjirmfg 0ukn +v1jhme non series a1fmfni:r /gmku6j +ejn1hmf0 *e 2g;vnd 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 -hm0be c 2 :eh88 tmviuoupi;)are identical. Which bulb will be the brightiip mhmeh bu:u08 c82e;v-t)oest?


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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 switch and three coo5v7-2z:q5aee owzt,so)ab :5a geresistors are connected as shown,7zt5 o o a-asze2oo:ceqv5)b: eg5aw. 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 andcnn9,zyk a5qgke 2);8 jal e ;xn3quw5 three resistors are connected as shown. With the switch op aa5e,q25ew xyk 9)n8zn gkun j;;lqc3en 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, ai 5 ia2w6 ep;9s2q. nh:myntyxn ideal ammeter, a switch and three resistors are connected as 5.x92isam ; nyqnwh t6p2eyi: 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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