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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 metal resfev u0 -qwt :8)js/xqpistor connected to the battery. Which one of the following choices bes x/qsfwe: 0jtpu) -qv8t describes the direction of electron flow through the 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/o-5sqlf b .8a 8mzckz connected in parallel, the_________each resistor is the sfzk5smocbql-/za 8 .8ame.

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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+ps18eg stuwth-yp /a8lus-:n0lce0 wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the 0 :wtlp8 e0 psnah -egys/uut 1+c8l-slightbulb 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. LED is cxg5u(a t-3k2 s3pogxild y-bxqw; 1.the acronym for which one of the fyq 3-p ;l2g-5d og(sc.twkbxxa1uxi 3 ollowing 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 ct/x;lbz 3jncj2 i b7h0ross-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 r7cj23bbihtz/lj n; x0esistivity 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. ap6 y)fc(kq o6wu;lm 5v 9)v 4wcnql3pWire II has twice the diameter and twice the length of I. p( 9y mwvac36nlq)f; l5ou64qw vckp) 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 has twice the diameter yd;jh0j , fvkrip,c3* and half t j ;,dchk i,rv0*3yjfphe 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 radius r. vaquafo t*2 w-z ,7e-tdi86 jvThis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mauj-ef,w- z7 68oa2 q tiv*tadvterial 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 to make a brighttbc-5v(v7 ux i4nvun ,er light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified v bvx u5t,n-viu4n7(cin 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 length ( b8vlcv0 5b qs)z*q bk*nzs7uand radius of each resistor is: nqv k z)ub c*5sqz 8l(v0b7*bs
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, elq ek2pdty(:qz x8/sij6kaw.x 86 w1fach of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistork.k1z/s28lew(ap w:qid6x jfxq8t y 6s 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 diagram has internal +rz:w7;. - 3sfnb4gf kwgebtqresistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The f; t.7bngz:r3qsb ww e-fk+4 gvoltmeter 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 right. The ug c)d5r*8y+(fx ikde three bulbs 1, 2, and 3 -cgrufik8*y ) e5dx( d+ represented as 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 elect h1 hae + 9kzfc2k-puzb6f*dg1gl4d4erical circuit at the right. If the current in all three resistors is equal, w2z 1gul6kfh9f4cz4-gaepe+khd1 b d* hich 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 righp:, uvn1jhuls:c:b w5 t represents a simple electric circuit composed of 5 identical lbj:pu: :15,sw hcvnluight 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 concerning theaoiwr;08e n+v simple circuit shown where resistors R1, R2 and R3 are have equal resistances? ao+0n 8r wei;v


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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 conne,z s1oa9wy . pxy8s-wd *a1vzkcted in series to a battery. Bulb X is brighter than bulb Y. Ass1aza-s1zso wp. 8y y9wdxvk*, ume all circuit 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 ide5zu;j,rjphv0kn h+:ontified resistor in 5 seconds :j jvh05puh r, zk;no+ 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 th5 2uozz0q qb0qe resistors in the following simple circuit have the same resistance, which would dissipate the greatest powerqu 02z0o5q bzq?


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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/c/,tu7x9bix miva6 ea 9 ofo( through the 6.0 Ω resistor is 1.0 A. What is the xxb/if aouvit9ma(,6 o/7ce9 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(,pwo 0zf ipr4 connected in 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 power. What 4z o, w(pfrpi0is 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 andR3ku5wc7 r.r ra:fq+; kk are connected in parallel to a battery. afu+rkkr :q5crkw;7 . Suppose 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 rated 1200 watts and 12uiu 6a0m7ypbz +doxfx422rn yi9j3 4f0 volts. What is the maximum value of theayrx24 2mdfj n7po 3 u06b4+xiyuzf9i 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 60 )ck.z-1/r bk y(cjpxf watt lightbulb designed to operate at 120 volt)-zjc yxb/c(r.fk kp 1s?

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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 curr9k* c8izxvr s(ent flows through a 4 ohm resistor that is dissipating 36 wattc(r*k i 9s8zxvs 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 *+ezj7y3iv1/x r j hhgpress clothes is marked "120 volt, 600 watt.” In normal use, the cuz3 j/+ye7vg*hi1x jrhrrent 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 NO2t9 s9,ccem-xmydk+pkn 0rw ;ir9vds. x0ay 4T be produced by a circuit containing only three idennw- kxxyea2md;c0c9krv9d 9myi 4rs, p st0 .+tical 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 resistorsw,5 rj*uel :zwy,ih ;l. Which of the following equivalent resistances CANNOT be produced usiziwrl e*,h, wj5:l ;uyng 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 bey/.0z ;h.n1zo nqaq:cfyjz 9d connected together in different configurations. If al.z/nz q ja0;fn:zhy q1 c9do.yl 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 connected to a battery, ofb q4u),2mq/0; h v8 mnqt;o sybtaf5a total power P is dissipated in the circ; ,otqtnm y2hsmo8b4qva f u/5;0 )fbquit. 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, hp2 x r) 1*jmm77 gjna5i6dmfujaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements * jn2x)ajrj1mp6gmif u7 d m75about 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 suchw7+z az:z l5p12tmatfusu; a4 that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wmu2aatfzuzwp5t+7l ;4s a z1: arm 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(q+;.fwd qu ly resistor that is dissipating 36 watts o.;qq (wfly+duf 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 ampb k+ri01kd ;wmeres of current when connected to 120 volts. If the price of i;0kk1m+ dwr belectricity 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 lig.dl o7mt /*e44sme ezzhtbulb lit continuousld*ezl .z7 m o/4eets4my 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 A through a lightbulb reslu 8:j2flfh 9zults in a power of 24.0:9llhff8u 2 jz W 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 q9cz4ntit ndn.q) n0.500 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 n. q 9idzc)n4nn.tqt 0be 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 is2/bgrp*u2i2ipr1- g /hpaeb o connected to four resistors to form a simple circuit as shown to the right-e oupig p/b1pr2i2b h/rag*2.
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 connecteibyzad)-w 2f: w w*ij:d to four resistors to form a simple circuit as shown to the rightbzi-dfwj2 *w:a)wy:i .
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 awqvp8lp +n5 b+mmeter, a switch and three resistors are connected as shown. With the switch opewp 8p+vl5qb+n n 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 switb/ gepih0b1u:ch and three resistors are connected as shown. With the switch open as showp/b i:h10gebun 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 ddd4 r- 4usad6and three resistors are connected as shown. With the switch open as shown in t 6-du sd4dadr4he 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 t s84u ,zgbx.z shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and al8z .4zbt,usxgl 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 thed,4m g,v mz57wmvem7l right with resistances 5em 7mmv,47l,vmzdg w $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idekaym* 3le(gl.ntical resistors connected in a combinatile(.g kam3ly* on series and 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,cblp+c0z*l33 m 4 jxtv spj ppe8+j7c shows five identical resistors connected in a combination series and paraepbxvcjc+3jl + 4t0*p 8,3 spljz7 mcpllel 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 diagram9l - 2gc wolzvjra3,-to8mu y*, all of the bulbs are identical. Which bulb will be the brightestr8z9touygmo -*cjw-,l2alv 3 ?


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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 resin1m5 v kre,ze2stors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere,krv2 ne z15ems.
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 resiscpr 9-n4, . 4swujc;dflvj+ugtors are connected as shown. With the switch open as shown in the dia ;v.sg-u,d44jr+9 nfpc luwcjgram 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 q* 2fgg wnbi2)fdfet //:vjw .ammeter, a switch and three resistors are connected as shownjvewi f//2f*:)bng .w d qfg2t. 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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