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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 shx.0 ie4tjdgb+ own, an electric current exists in the metal resistor connected to the battery. Which one of the foll 0egdi+.x jb4towing choices best 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 connected in parallel, the_______)bc0(j k .st s0bf svh8w4;vdz__each resistor is the same. vtb ;.4z sd0fssjw)(kv0bhc8

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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 caujoc *lgoe6.v3 ses the filament to bjv .*cog 63leoecome white 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. LED is theyqwc3e-uyx( ,w6 )twh acronym for which one of thc3 6y)wthwye-xu(,qwe 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 cross-sectionawcm1h7 y.5 dcml 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 ramc7cd. 15yhm wtio 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 II has twitnbv a;wn,*jgii( 6x,ce the diameter and twice the length of I.aw;ix, ( tigv*nnj,b 6 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 gz pr6ax 3v/i2me , qnm29j+swsame material but has twice the diameter and half the ln2qsrzj32m e wgx9p,+ 6/iavmength 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. This piece of material lqcr-w95xg6 i is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materixw rcg5-q6 9ilal 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 brighter light bul/ srqnd38q4 egb3ai2 pb. He decides to morbs2a 3/d 4qnqeig83pdify 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 materi*kec 8fk k93aial. The length and radius of each resis 3 akk*ef8ik9ctor 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, eache:a u(roz8fe0 ,.xqvmk+n:qb of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors i(v:mnf.abeo:,+ 0q u8 qexkzr s 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 intersb;3,v9wv,6jcdagc- q ;ye vqnal resistanceaegyv;q,s -c ,;9qb3vj6wdv c 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:


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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 ri2ycgyt eg +/y, u6d6shown to the right. The three bulbs 1, 2, and 3 - ri,y g ryy66+2t/cedugepresented 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 electrical circuit at the right. If the current in v5ow d(gl;m1s all three reso dw1 sm;gv(5listors 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 represents a simple electric circuit compo.diya3wk5 ws/)c0lzb sed of 5 identical lighw sdz0i/ab3ky 5wl.) ct 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 isd6b5 mb7/b/kyy bjl4s NOT true concerning the simple circuit shown where resistors R1j7lmbbd s 46k//b5yby, 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 ss l wx:cu5/;heeries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in u5l/;s hwx:ceparallel 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 cou9 i+go0qx j 4hdxfw ek1t3qo58lombs will pass through the identified resistor in 5 seconds once the circuit wt5 0h qxoo83jidx9k+f4 qeg1was 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 following simple circuittg mw0 e2j1x2e have the same resistance, which would dissipate the greatest pow1gw2e0m 2jxteer?


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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, o,e5dwk67*s rb6 iete the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage 6r, *bes ok5te6ewi7d 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 c 8crx rp1t7u)dox 2,n..wzjv4r edoir0 ma4:to a battery. Suppose R1 carries a current of 2.0 A, 7n juopr) eccrm tdw0x, rrzi184:24d.aox. vR2 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 differentqvszf x3*11 gxxx. 7w -pokou- resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in .*gpxxwok1xfs 3q xv-7u1oz-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 wag(ud8s r :cok o9b8yh)tts and 120 volts. What is the maximum value of the current under theocr9 yh) u8bsokd: (g8se 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 re(risc6t hw dj kdzz:+h5t4l;d 4-1dnisistance of a 60 watt lightbulb designed to operate at 120 vo6i1+d -dt: whjld4isc 5z(4t;d zr nhklts?

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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 g8u-y ;te 5luvy +cn1qthrough a 4 ohm resistor that is dissipating 36 watts of pow qc yey1t+5uulv;8ng-er?

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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 "12zrll i;(j 44uz,ec dd90 volt, 600 watt.” In normal use, the currezc(z4er9l; i4ld u,jdnt 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 bex fa7l,th:3zo yt9y4x produced by a circuit containing only thr4o3a 9hx flt7:yzx,t yee 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 1mvsjbx a;u).wbz7 2)fb)xo n:.0 Ω resistors. Which of the following equivalent resistances CANNOT be producb xz;fb))ano)j.x2uvb m7 ws :ed 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 ca 2rlb5a-ydy*6sq .dvan be connected together in different configuratyl5va *byr2 6asd d.q-ions. 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 connected to a batte:, l:,u xitjwary, a total power P is dissipated 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 inter xwltu,a,:i:j nal 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 connected in 0q(p y9(. (w4 yonnddkoju:f iparallel, the equivalent resistance of the comb4 (.(9 u j(o0onwy yiqdp:ndkfination is 5Ω . Which of the following statements 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 oper3gbq y81qe ud)ating at 120 volts. What is the minimum amount of time that it wod)1y g8e bu3qquld 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 sh2g4czj j h8pojt6 +rz7wngw92/y 2zflows through a 4 ohm resistor that is dissipating 36 watts of power?gy2osw2jnhrj + /g 867p24zzhjc 9 twz

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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 ccm.rhazwfe2( l,dekn(8 cu28g w.:l p urrent when connected to 120 volts. If the price of electricitl(c(,w2 82zk dfn.mewr cg 8:h.lpuaey 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 i:ao(w1wk( 8 wc)b2 eqrofxd*t-a:zt to keep a 100W lightbulb lit continuously for 1 year at a r2c:obw:zw t1k-oq*aa( erx(wift d)8 ate 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 results in a j/i:by : .gletgg+ kl*power of 24.0 W associated with the bulb. Which one:jt:ll .gy*g+b/ k gei 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 ,:w+ c.hgrgrd owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuitrcg +dr,:g.w h protected by a 20 ampere fuse, 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 resist,3. v*qk toyfvors to form a simple circuit as shown to the 3v*,kf.tqy ovright.
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 t-wf2 i.khldib8 o02bl o form a simple circuit as shown to the right.d2-2oi.bfbl80l khi w
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 three resistors are cj/j51 8xo5wicyx,cbndnd z *8 onnected as shown. With the switch open as shown in the diagramd5 n 58ny/wjjxz*8,1cxci do b 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 and three resistors are co t8(1spf nl(jpnnected as shown. With the switch open as shown in the diagram the ammeter re (fpt s1jln(8pads 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 resistoro/4r : .wem0pjhkxo0z s are connected as shown. With the switch open as sho/krh.4 jp0w z0eomo:x 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 equivalyk 7ii xsd8c thkxlcosmyv *68(.i*+ +ent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistoy ck.d*s(+x si8 l6ico*vtm+hxyi7 8krs 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 the0hzox4m,cr2 376 hahjyuazo ( right with resistancesaom o7c (hzrhz3j6, 2ua04xhy $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistor8egfd +9czs -vs connected in a combination series and parallel circuit to a voltage sdz fe g8s+vc-9ource.
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 combinad.don )yzj (6htioy n.h6( djd)ozn series 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 thei j :t/3b 38wae7zphal bulbs are identical. Which bulb willp wb8 heza i/l3t3:j7a 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 threc k;jbon-k:4d e resistors are connectenojbk;d -4k c:d as shown. 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 and three resistors atd -c3nr i 1h(r;ie3i*r3wyx nre connected as s3(e3;h 1yrncdin3xriir-t w* hown. With the switch 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal amme g o2m20y,qgbrter, a switch and three resistors are connected as shown. With oqbg20mg y,r2the 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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