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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 ress8ziw2xfs;05g6y x ig istor 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 of tsfi 8z 2w ;gsx6ix05yghe 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___dr(uxwhu*ihbw(zcu2* 1 6 sq0f ejc, 0______each resisto2ru6*cf j0 hwi w*,b(0 szuexc(1quhdr 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 theis h2 ai;v9jj0 thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires conhj ai;92ji s0vnected 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 househoxsi gk, 5;whgtg1z wtr x6x993ld lights are being replaced with LEDs. LED is the acronym for which wk99ztti5wx6,sr;gx 3gg xh1one of the 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 crossw //igenk-en 1y 2 0lxlcb0h(f-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 resistivity of the cylindrical-/ 0be (2f0k/lclhy 1inenwxg 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 Iwse4di:cva .xh)) 6j vI are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistac:s)e .4)xwd6 vha vjince

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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 and halnf .usut2k2 bp zx27)z1u:slu62xou pf the length of wire X. If wire X has a resistance of R tzt u f)pu2 x6.27zsx 2u2sk on1publu:hen 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 rambm ;f7u3 )v()jje;4hoxd ab. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to t;f;x oaauhbj v j43)edbm7m ()he 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 make a bribfl/*e*dfhnn .3 (,mucwnom8 ghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce morof3c/.e d*lfuh , 8mmnn*(nwb e 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 materialc/f0v 8:yy1+h bmy+hquzuj)r. The length and radius of each resistor/ uybq)+hv yuyjf80h:mcz1+ r 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 connec3+)e )n-l wdyxt jwwe ty5ia9.ted to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel x.i+wn-9jwyd))3e t5wl ety ato 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 accompanyinw 4:d ydyh4n7jg circuit diagram has internal resistance 10.0 kW and the ammnj 4hyd y:w4d7eter 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 showkq ljt72cox;xru, / su fr1/a8z 1ry)qtm/)u pn to the right. The three bulbs 1, 2, and 3 - reprft2k/x,suu 8 mtjo;qx/l/ )r 1prcq7y rzu)a1esented 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-d k1d9og06yi 6m ooxyx9: kxb circuit at the right. If the current in all three resistors is equal, which of the following statementydm1-xk yko9 :6gxb 6 9oi0oxds 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 qus cc9fu-td n3b q4ii (:o/v)electric circuit composed of 5 identical uu nbd4v(q)/it3coisc9- f:qlight 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 statja c6zcj/)) ot/s.ndfements is NOT true concerning the simple circuit shown where resisto.fd)ncas/)6 tjzc/ o jrs 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 to a bat0p ba 20lw5aattery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY wa b002t5lapaare 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 w)nz6o 2l23a xltov j3eill pass through the identified resistor in 5 zt v)e2x3 j3la62ln ooseconds 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 the resistors in3 fxi -dhocs)9o(le(z the following simple circuit have the same resistance, whi e (x-(sioflhc9z 3d)och 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, the current through the 6.0ig.(p(in+ayr,kg:4 mx i-zwu Ω resistor is 1.0 A. What is the power supply voltage V? w(i, nazpk+(i.u-ri4xm: gy g


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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 to a battery. Supp;s(, )-xmq ;iueg0rjb wj*,bq ne ,watose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W ot;) rgws,xj(q we-m;qnbi,0au *,b jef 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 andkv4gds+ c(2 ljmqbb4+R3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c+c 4bdkq4l jsgbv+m (2urrent 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 120 volts. W-4v: tc9;p op-zal6zp ih8kkqhat is the maximum value of the current zkk 8tc6-a;vi :4oh lq-9ppz punder 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 watt lightbulb designed to operate at 12e3a;36w2a o d(yxcjbk0 vol2c3k jod(e; aaxw3y6b ts?

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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 dissipating 36)fxj8c f + t7,)wgdocm watts of c )xwct7)+jfomf8dg,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 press clothes is marked "120 volt, 6(7bqpotuo*;pnm.ms p6j 6 wb300 watt.” In norm p6un76(3s p;b*m.mwp otjbq oal use, 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 be produced bytz: /mz89f0k bosr;cg v2wt+d ord1f 7 a circuit cont v7f 8 do1gz;zrk2/w+smoc0b9dfrt :taining 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 ii*k7bmf2qs0 1.0 Ω resistors. Which of the following equivalent re7 ikqi*mfb0 s2sistances 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 be enj;pj4 p7b95:mrw,au5 rll tconnected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produn9ae57: bwrj4,jltuprp5 l ;mced?

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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 powvv: 9jb-ttd0 6 z)a9giu6bhwjer P is dissipated in the circuit. How much total power is dissipated in a circuit 6vb dbvw i09-:) jtu9j6azgth 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 connected iw5dlks.v(3l6snu+c k n parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correcvssl6l5kcu3d +k wn (.t?

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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 o.hh.g-5r ovzjtlh oc14 u;b,sperating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water frorbg5ocjtv.u h41s.hh - zo l;,m $15^{\circ}C$ 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 dissdw) f;r)xor) s- ejh8oipating 36 watts of powerwfre jos)r8 )-dox; )h?

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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 amper0,itn0+t pc1 caclf (4 apkbs6 k*t-fies of current when connected to 120 volts. If the cs(*kb40 ialic61t0k t ,p-fftc+a np price 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(w, q)1 ehn8mz xrk9rt it cost to keep a 100W lightbulb lit continuously for 1 year atx tnr1hz9m(k8), rwq e 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 4.0k;8j kfnqi(. o0 A through a lightbulb results in a power of 24.0 W associated with the bu8jqk (i. ofkn;lb. 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 fabi m3a /;,a2bmdl;bb-bt s o5bmily 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 operating at th/tb;bbm3bm ;aa ,o db2ils- b5e 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 simple circuid syi px.(brk2*g q.*gt as shi*g k.gb dpx.(syq* r2own 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 conne(*qtrte*b d j,dgwr q:/ ueb07cted to four resistors to form a simple circuit as shown to 7r(dred/b*quw ,0gqt:jb*t ethe 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 zh 1m2pdav9 z;qgu62oideal ammeter, a switch and three resistors are connected as shown. With the am;qpg6 z z2 o1vdh29uswitch 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 battery, an ideal ammeter, a switch and three resistors02 ssls5s*nme are connected as shown. With the switch open as shown in themsn s 2e0s5s*l 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 and three resistors are coik3x-t pms535zdnj4 jqk 4nlu:p;k v6nnected as shown. With the switch open as shown in 4p 63ks5uijd:n4lkzjmq3 5n;pkv xt-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 ro yszklx jrpod 6ixp8i088 *8)esistance? Assume that all wires are ideal, thery ols ioikdp8z868*j)0xx8 p 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 resiqp1a/md l.un bz 7)m4j; q6uckstance of the circuit shown to the right with resista.k4jnbclqmp uu 1qm;z7)a d6/nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecte ;4v48dk (j8a qiuwjbx+osn-rw1,k l ud in a combination series and parallel circuit to a voltawxn1d+8ilrkj;,wa k subv o-8q 4ju4( ge 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 ident:5uygmv-t e3 vical resistors connected in a combination series and parallel circui5-v 3 etm:vyugt 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 )8zie/+2n8 m ijeddqe the bulbs are identical. Which bulb will be the brightestie8j/)nei+qzmd8 2de ?


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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,(i n umpv(.v c/m:mrg-p0ruz5 an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the d(mmr(5- gpvu:rci v 0p./zunmiagram 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 ammete8hd4 6fyj *volr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammete86 fo4y*j vldhr 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 and three rsx / 2h(rl7snaesistors are connected as shown. With the switch open as shown in the diagram thsxshn(7/la 2re ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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