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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 resistoh,(c2b 5s8mdf xlzv 7ir 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 thxmhlf(7 d,c2z5b8isv rough 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 paralll f9*tltkej*/el, the_________each resistor is the j t*l9/l tefk*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 l.w1/ll9 yhzp rightbulb causes the filament to become white hot, while the larger wires connected zrlp91lh yw./ 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 lightsr.r71y-ms*fwuf whj, are being replaced with LEDs. LED is the acronym for which one of the following choice r-, uwf.*mfyjr7s 1whs?

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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 rskmhf bgdt hiy-: yv j45g/g47+,uf;sesistor 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 5is jd44vbh f-s7tkhy mg;/y+:,fg ug 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. Wir9niv ) xgr8j+fe II has twice the diameter and twice the length of If+ nvgr9x)8j i. 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 diametermsv dlr69s1 cuy x2(au c*6ki) and half the length of wire X. If wire X has a resistance of R then wire Y would have a redu yms(296*1i)cr 6svalc ku xsistance 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 La. kway;*)yady9 un z/ and radius r. This piece of material is then drawn so that it is a cylinder with new*un/ ) zk;ayaayd9 yw. 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 Thoml. iewrl,: xk8as Edison wants to make a brighter light bulb. He decides to modify the filament. How l :rile8,xw.k 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 lepseru pp /3m:0xpw-o g .v*r;yngth and radius of each resistor is: yx *p:.r pgv3u/-o;swppr em0
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( w/ 8gyzjzpp8, each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This z/j88(pgz y wpcombination 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 dsot b9uj+2g0v iagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter gu bo +9jt2s0vreading 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 hiurrch nf 12u8t*2k6sv) n b6shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrr 6riut2v f c*bnuk26s)hnh18am
- 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 .1md9ikbc) szat the right. If the current in all three resistors is equal, which of the following stad9mcis) 1 bzk.tements 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 reprea+l7,(dd n 8eb1quba c,9cvmp sents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb8ue 7a1l+ d,(nvbd9,c amqcbp (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 qh ilgx*s v;)lq3iz81rdn9p 2is NOT true concerning the simple circuit shown 2lr1qp)h gz 89l q;sd*x3n iviwhere 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 series t wz se0ke.0i :vd-spt+o a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X ands vzt+e .kep-id :0s0wY 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 identrr1j+8d 6 hyvnified resistor in hjyrv r+6n18d5 seconds 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 thes(le xv9 nrkfn32/./3bpkach resistors in the following simple circuit have the same resistance, which would dissipat l cxp33r/skf2 9 (abv/.knehne 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 ce hpe-g5 awx6/)ur 6kdircuit diagram, the current through the 6.0 Ω resistor is /6 5uerkp hd6ag)w-ex 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, 21wzw-kk ju/v-r,m.cf2q z5z78vh; p rhljv pand R3 are 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 is the wq 7m8 .z1r/c jh;5uzrppjw,l2-z vvk k2-vfhvoltage 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 part*0i 7fcik.d ej i/+wfallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentwc0i f .iij* k/d+7tfe 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 9 .ypp0keyj(erated 1200 watts and 120 volts. What is the maximum value of the current und0p.y pey9kje (er 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 wg3.wvc ujj+ hu:a/s 0watt lightbulb designed to operate at 120 volts? :jhw/c3 g+wu.s0aujv

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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 y de/.:x8o*laht; ay:shrw (ogy zt/,through a 4 ohm resistor that is dissipating 36 watts of power?g(yhthla8 *,zetx o.sa;: /:rwd/ oy y

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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 pj-grl* sk/j3 lress clothes is marked "120 volt, 600 watt.” In normal use, tjs g*lr3l-j k/he 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 followsk 99d 7ek sdua;e+xzr*(97j5rmc a vbing resistances could NOT be produced by a circuit contaikr(9775 9 s +k rejazem xb9dacdu;*svning 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 nc, e:j:z9 eqejz ;o,cfollowing equivalent rezj,cn, jceze:qo;e 9:sistances 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 different values can b ky3pdx ;z77/svtf yr:e connected together in different configurations. If all three resistors are used in a cirskzpx;t:7 y 7vfdr3y/ cuit, 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 powzm,n/,/*nkosh xjht6v2y5w 2m1tn mu er P is dissipatedswmmmvy 6t/2,o 5xznu 21,nhn/ *jthk 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 resistance R1 and R2, are con 8 sqiv8pfwt.8nected in parallel, the equivalent resistance of the combination is v.8s 88itf wpq5Ω . 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 v*38*ht-0agh:kwge- gik 8 p qpwd del 4+bu1aresistance of 12Ω when operating at 120 volts. What is the minimum amount of time that qe40+vw ew8:hpgh *-8*a p1gl bda-td ikk3 ugit 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 disqivk5 - 3y qeib6zh9 n:kdb0l/sipating 36 watts ozyb39 5d 0kh/ vliekqq-inb :6f 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 curr*wg dg )h+pduew gf*,k4s h.-nent when connected to 120 volts. If the prid.,*+sfwu g)ghedp4* wh-gk nce 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 co lf;zh(uig n ftt uhf;sf3x,14,4zzc(st to keep a 100W lightbulb lit continuous(;;f,ithzlffgxu ,c(h u z34n 1tfz 4sly 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 result+i jevq 7bi8krqi7t:/ s in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbbe7k8q:ij7qi +/rt ivulb?

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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 f.*1xowvx kg 1d9jpm1a0ir9j at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit px0m*19 j9rp1.i wgxjka1od vf rotected 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 resikr ms36*z0usi stors to form a simple circuit i0zu3km6 sr s*as shown 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 s8xrs+ghkcoknuh d+27) f ( (n .,egxd k):bbqform a simple circuit as shownegd7hkosxr) kku2+nqc n,b)h fs(gb: .dx8(+ 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 anzt271niyk*spf0w ;h az mb.2fd three resistors are connected as shown7kfahb;zzf0 ynp w*. 22it1s m. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battetkr(.v0s v/ys j ,4razw,hx*h1pog.yyd7 +aqry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown d(tz4j+ah,syqr.ay7.kwo / h ps1xv, vg yr*0in 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 ammete6c9uu3.j t)6/o wxzapj5 qbqv r, a switch and three resistors are connected as shown. With the switch open as shown in the diagrjubw z 3ao./q)qj9v6x pu6c5 tam 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 circu sivy .pb:7l2wp -uyq:it shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has n2 uy-l7 pwbys pi::q.vo 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 right t/akg.kex 1zsvy.nw4 c-r4 j . with resi ncy-/rzsjxv.g ka.4e4kw1t. stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a co q9p-ict2,: cf-ejlor mbination series and parallel circuit to a voltage opj-f2-i el9c,: qtrc 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 identicj,m yj;o::95lyypue yal resistors connected in a combination series and parallel cilpyjy :9yo: ,m5 y;ejurcuit 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 v2ufrk0:vimm38(4iebkh+ i s are identical. Which bulb will be the brvbr +if0i3m vs4 m82h u:k(ikeightest?


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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 batter:w(6 ad q0zy(vv*suzs y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme:u(zy*d(v w6zqsav0 ster 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 8ms0-lgr.ksc and three resistors are connected as shown. With the switch open as shown in the diagram the ammk-0c.gssr m l8eter 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 adenkqy/+ 1 xb6nd three resistors are connected as shown. With the switch open aq+b6 x 1d/ekyns 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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