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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 elecus;psr72vz3dm f 5ezug :xv;8 tric current 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 direction of the electric field through the interior ev; 8gzsfu 2;xs3rp m:5uv7zdof 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 4 9cduz);rt5s hw-)pygc/jo aresistors are connected in parallel, the_________each resistorj csd 4 w5 zg/yra)-cpuhot)9; 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 causee or- +rs6ga8ex. gx3t)i ,ra5yjee6es the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becair -+seaxg e. r jg 6e6erty5e)o,x83ause

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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.me47c6k/ ja2itm a *zg LED is the acronym for which one of the following choices?ezjt4 caig*62m/ km 7a

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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 gz qj7ra 69h*imraphite resistor has length L and 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 oq67h iz9*m arjf 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 hp5ed o*66 u -fraptzy0as twice the diameter and twice the length of I. If I has resistance R, II has ree ppa fr6-dt6uy0o5*z sistance

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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 diametervtb)nao 458.pqqwgy 6 and half the length of wire X. If wire X has a resis)qv5bw. 4g n ayp6toq8tance 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 resistorsm ut(vich8y9-h r2go4vk(/ h has length L and radius r. This piece of material is then drawn so that it is a cylinder with neh2o( hkvi- g/rvscth (4m9uy8w 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 to mak/lgde,sb 1n9e x5 php9 ;-widze a brighter light bulb. He decides to modify the filament. 1ddn;9zel -,9ihweg5/px pb sHow 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 a7pktr-aq4ssc28r )q/6bbgh/ ysdxu;re made of the same material. The length and radius of r; p42huks bsxrtg-c)q6s7by/ /q 8da 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, eatagsm90x )d4 mch of resistance R, are connected to a battery in the following way: “Two resia) 0xmdg 4m9ststors 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 circuit diagrama,v up 2roik)9 5w.tvr has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Thpr).vvrt,5 k2 9uawoie 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 shown to the right. The three :)w5,g -wua c+32de ftn(nzwgzcnku,d:9k dubulbs 1, 2, and 3 - represented as resistors in the did -nc:,u:wtuu zweg k,5)dgwk n+(fnad29 z3cagram
- 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 the3h/u-:) dzh2jm; +wbpoohg9sson )e e current in all three rg)ne e h9o3smo -+ bd):hszh ;2u/wjpoesistors 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 ci2mvy j k,z +h+rv2l-unrcuit composed of 5 identical light bulbs and 2 flashlight y2jvunvzk2 +mr,+ h-lcells. 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 followin6brue5*gv sq9 t. ;hshhoz6,wg statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 ;bgtwz5 6osh q.rvh,6u eh9*sare 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 sk 40i1pkcux4 fn7d/q +)e rjyvm/fg*v eries 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 following choices best represents what is observed 4j v+ ukvi )/7 ed410g*rmqyfn/ckfpx?


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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 identified resistot 4 4(vb7v+dig)hs naer in 5 seconds once the circuitavi h4dt+ne 4(s)g7vb 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 r4t99v4orbq .s r/lg sresistors in the following simple circuit have the same rvb lt.sr /9 4gqr94soresistance, 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, th,9:ccpf7/ l kb7b6fqkcq:2p kxo8b cce current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage/9,q pkfcpb268okf::7k x7ccb b clqc 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 il z*w0y2e6 3qfz2gms yn series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resiszg2fz * m0w3yy62 eslqtance 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 different resistors R1, R2 andR3 x 0cu8 bl0aj5bare connected in parallel to a battery. Suppb xl ucj508ab0ose 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 1204izw+x7pabo fba3l-- volts. What is the maximum value o4b fxi7aa-p 3w+blo-z f 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:y* mgn/qq :8zvaz0swhy8 q5uv: ,)suvt e nw5 60 watt lightbulb designed to operate at 120 vww5: :8vnmvay u)z*t5 e nz:qv8qqg/y,u s0hsolts?

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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 dissoapd2f4pt9 vy3 ble7sv0q4n0ipating 36 watts of poweo pys4lda0 9v 32fq4env7 tbp0r?

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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 clothxyqx*+j+7aci(gz2 un8cw7o bes is marked "120 volt, 600 watt.” In normal use, the current(j*zbcxgxoa w8iu+c+ y2n7q7 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 produced by a circuit conp);bsi6k2 8 e6fmlwvwtaining only three identical 6Ω resiskb6f w62elvi) ;wms8p tors?

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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 threeuj+xbeo8)urlp2 8g6r 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three resistors?jug82u+olr)b8 6r pex

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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 k *qhmmpxu5- :can be connected together in different configura-* kmmpq hu:5xtions. 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 e76 u:znx7bdpg yfit8jcu:ph e, 081ih5hp1b 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 connected in series using the same bat e7bjt0up1bfd8n 7:6uh1c pg8h: hx, iepy5 iztery? 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 resistance R1 and R2, are condmqc gpi+wa9w6i e0f9qme 1;2nected in parallel, the equivalent mi9;ma1 +06 ewd2q9 q ipgecfwresistance of the combination 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 o k- *0d zg:xl.,z+gkkk lpbv;resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of watdklzko;+k-l0k vg , p* :zbgx.er 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 w1 qz9jygx9 zhpl1gw2,n:w)j that is dissipating 36 watts wz9jhzj p:1y2gw 9wgn,)1l xq 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 v-p jlislj1 g,1olts. If the price of el1 -i,l1sjlj pgectricity 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 con h)6ii0k*2r 4h9rejsqdtl1 p rtinuously for 1 year at a ratedrt)6ekq *ph 0rji4hls 92ir 1 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 lnel;lih q*i, 7 2oh)ta lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the2h)7q ,iot;*lnilhl e 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 rauc*cpuh-i94:-q sr xq ted at 500 watts in a 120 V circuit. If all computers are 9puc rq-:sc*x uhqi-4 plugged into a single circuit 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 resistors to form a simpl8f*y 1vtxy zu6e circuit as s tyu1yx6f 8v*zhown 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 tonr q+f4 uhss+q0 ac8.m four resistors to form a simple circuit as shown nq8+s +sm0qf.r4a chuto 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 batterh4qr zjxd:,dyk5 b+(i y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0krbhjd (z:+45iqxy ,d 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 th s9mt:x yn1 cxi;g:wmw.5rh/ vree resistors are connected as shown. With /;hwmc:x mg1 5yw:vxn rt9si.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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammete7/ .a,ft;f8,l x xbmfit pig4or, a switch and three resistors are connected as shown. Wb a 8o.im,t l/p;xftxff4,7 igith 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 equivalent resistancehi mqq*-j9s*r pi23 ktl2alx-f6ebs4? Assume that all wires are ideal, the battery has no internal resistance, ans*xi imkt-6 hs2*fj-rqb4 le3pql2a9 d 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 jx b xsq0tz,,4r)lgp: 5lvic)of the circuit shown to the right with resistc glbq0)t:lrxsx p 4,iz) ,5vjances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bel thih8o2(muts(10ksrr5gl5 v ow shows five identical resistors connected in a combination series and parallel circuit to a v5mg oi(0tks( 12rh lvhr8ust5oltage 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 resist4(ifhq) cbh f 9o,ysh0ors connected in a combination series and parallel cifhobsc40fi,9q ) hy h(rcuit 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 circuibay t;* c9b sy.b/bt4 yj zlnem.)8d*dt diagram, all of the bulbs are identical. Which bul 8y/y ttjs*ndb*.;4 abmcb9ebz y)ld .b will 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 batt9 i61y lyhx8qtery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in 8hy 16il9ty qxthe 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 nf2jz2p l,ki-switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aj i,p-2k l2nzfmperes.
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 cbyl1+,4mg a*5wuu yjswitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet1 uyb*yc +aluwjm5g,4 er reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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