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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 the mdljiz /sncm ;h+klyhd)wbd 9o7 46i(5etal 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 througo )dddz5ymnhjhi9il6b/+ lc;s 74 kw( h 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/.gpi;x6 lx.bsi h(ek;trc1m parallel, the_________each resistor ix6(1i;; ke.cptg h/.rbxlmsis 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 wir(5gxdnj 2dim0 e of a lightbulb causes the filament to become 2(dn0dxgmi 5 jwhite hot, while the 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. gi0vq69 z gdl9LED is the acronym for which one of th g6zq9gvi0d9l e 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 g7 )/qr.mslea.:tilju,uax y-z k5q8 hraphite resistor has length L and cross-sectional area A. I um:zh/y-k,q58q.aslj xia. le )urt7t 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. W+ 5-d1 w5bav (owkhzmjire II has twice the diameter and twice the length of I. If I has resistance R, II hasawkj+-z5bdvm(1wh o5 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 twigohm f (oa k/ig*:l l 1g..5yv:9ppfnkce the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wo*.n vg kogk a op(: ff.i:95hygpml1/luld 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 hasewbmh2- xs6f; length L and radius r. This piece of material is then drawn so t 2bmh;x6w- efshat 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 txq kt9bl/4 q0b.zo wfq,.;d ubo make a brighter light bulb. He decides to0w/ t, ;b zuk.qb f4do9.bqlqx 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 are5 klvmz* z3kgqfnw-o qll7*7( made of the same material. The length and radiuo*q 3v7g*wnz mlk5-kl l7fqz(s 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, are connected to a battery in the oqc.eldf2y*, following way: “Two resistors*cd2e f qo.,ly 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 circw,g9-zh h7ajs uit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The v jz9,hwag 7s-holtmeter 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 com/2a2ge:iueefj tx 33 fpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia ga3fe:2etf2i/ xje3ugram
- 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 i9tg7 qihob3 i38xbg5pn all three r 59bhigb383i otgq x7pesistors is 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 repw8) cmla- /2:ky ,jkw qbxu/0zaguf p:resents a simple electric circuit composed of 5 identical light bulbs w8x,02/wcgyk:bjqz:)/pu-fk a al mu 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 confisj q rel9/uih w9z7.2+ 2cjpcerning the simple circuit shown where resistors R1, R2 an p 2 jrf.+z9c2qhe7 wi/sjui9ld 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 bojg88yio g)d8 attery. 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 batteri) og8gj88do yy, 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 ;f8 .jfx8opkyprs(. b through the identified resistor in 5 seconds oncefr8s;. fyo( p x.jbkp8 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 fodim5 7,*il-:kw1*qhg/xpi w pp.ktupllowing simple circuit have the same resistance, which woulg*pi mkkdlxi wi7 qw5,/pp.-:u*p 1thd 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 tbwb ) jba.t- u2qm3 fl*lp6an0pa8t*uhrough the 6.0 Ω resistor 6npfabwt3 l0j.abl2utb-) muq 8* ap* is 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 inyvbd 12jn6jw-vh 3 oc3 series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of po1dv-hb yvc3j 2 63wnjower. 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 andR3 are connected in pagpb8oc ) 9qs* asav-o.rallel to a battery. Suppose R1 has qcb.vo* as-p osg8a)9 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 1( fm5q97h-h m dmgqqj.;nj2n h200 watts and 120 volts. What is the maximum value of the current under 2j mhnfhq9q-(n j;hqm.dm5 g7these 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 12r4plz-3np ee 3 k:oy6r0 volts?4pp lze:36-one y3k rr

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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 current3jbcg/l8k/ (p(xb matjbr 5s3 flows through a 4 ohm resistor that is dissipating 36 watts of poglpbab r/jc 3bj8(xs 3 /k5mt(wer?

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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 volt, 600 watt.”;(g0u2 p dsndo In normal useudgn 2dp0s( ;o, 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 resistances could NOT+f4b*i;rkcjf apeb+* b2-trw be produced by a circuit containing*2f w +ijfcr4+pke ab t-b*br; 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 resistors. Which of the following s6. ( h yg+wtjbp2:bfjequivalent resist62 hpt+jb wsy(bj:gf. ances 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 lng8(j1 jybw7 different values can be connected together in different configurations. If all three resistors are used in a circuit, how many diff gy(1nw8bjj7lerent 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 dist:3v.uqn0zeuv z te *4sievunzv0ttz: 3u *4.q epated 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 resi8 ycll ;dk9v,mstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is 8y9, kv;d cllmcorrect?

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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 125 st5ow2igw.s Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k2wt i55. gswsog 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 thaq jsr0( hh(:y (js3p3 nfjfms6t is dissipating 36 watts of pon(rh(3 6pssf:s jj f(yjh3m0qwer?

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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 o xrhw 1.v45-. bgjhosnf current when connected to 120 volts. If the price.n 5r -g4bjh hx.o1vws 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 contw,yjokzoq-/ o9zso;1 nih-d +gen*+k inuous-dkh o-1 w/i;ns+o+g ,zny9kqeo jo*z 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 4.00crvk*f1v/ d2j 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 of the lightbulb?*vk2/c rfdv1j

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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 +xe2 5 n+ahyqa qgc3i7uzn3.efamily 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 operha5cq2ae ny ig+ e3 .x7+quzn3ating 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 connectg5 gelf+b5) zrm;:zg med to four resistors to form a simple circuit as s+efz zb;gm:5 m) ggrl5hown 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 iswuqnd53rae+c,*(dker.d x j: connected to four resistors to form a simple circuit as sho:rcq nw+j35a ,d*.( dee durkxwn 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 batterthx :a(n7h(uay, 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(7hx hn:t(aau .
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 swit2mififxef : *3ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. :e3i* fxiff2m
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,.ltcf xekz;i g ,9 2kvw5xz-9v an ideal ammeter, a switch and three resistors are connecx-f5vklw .v,2k9gcit ez;xz9ted 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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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 equivaltn3*b) okra) bent resistance? Assume that all wires t)ok) nb3r*baare 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 the circuit shown to the rvwwh ba7;ar( 9ight with resistancesrwv a7(a;w9bh $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 insf7 xc61yq2dw 1t5 atz a combination series and parallel wy61 t 7 qx51dsfztc2acircuit 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 *mbzkzm9.jq 3j*uf q(s ,j *yffive identical resistors connected in a combination series and parallel circuit to a voltage sourcjz.qb s9(* kmmjjf uf,q3z*y*e.
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 ofivz6-x9q kn/rs, hjz 7 the bulbs are identical. Which bulb wilqxsriv67 9k, j/znz- hl 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 battery, an ideal ammeter, a switch and three resistq vv7j(*e :r 1naua1a/ xorays2kv/-;zte to7ors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampzav;x- ava:n s(ta1oj2*1qretu r/ ke77vo/y eres.
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 arenoj9wynsg:v c+*i/w0 connected as shown. With the switch open as shown in the diagra i jwcw*/voy9:ns0ng +m 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, a switch andngt4 1 -yet5 f96jamjf three resistors are connected as shown. t419jf6en- j5gmayt f 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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