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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 mm 6v b*;xvmv3detal resistor connected 3dbv; 6vv xmm*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 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 resho3- + xgnssd+istors are connected in parallel, the_________each resistor ishdogx3+ss-+ n 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 o-bm (.gln(ow/ri 9rg1gfeh /l f a lightbulb causes the filament to become white hot, while the larger wirli(mwl(rggn eo-91fhg.b r/ / es 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 isz n5 fo 4p:0hxkiiiu6*i+9hqc9-xv uc the acronym for which onechzi nuv+ ki0p- i95u:46 hfixc9qxo* 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 8*:rbdiw. e; 4vqstul cross-sectional area A. It is to be placed into a circuit, but it first must be cutu d ;8.i ebvl4:qst*wr 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 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 of2oo izd3;xb1s*w3 plp the same material. Wire II has twice the diameter and twicp *1z3 wipdbxoo3 l;2se the length of 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 m. luon *l9jgq,aterial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wirllj*.9nuoq, ge 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 0v6 s3(awo:ix 2hdi)gz*l0bajo 4m .*ubt zagis then drawn so that it is a cylinder with new length 2L. What happens ida(z6os)3gb.x z4mt gl0:0 h awi2 *ovajub*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 Ediqpl*yh9 k/8ap son wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more li8/yp*ap9 hklq ght 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 mate0 b.oyzsyuc /+rial. The length and cys0/+you . bzradius of 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, each of resistance mbyq oj (ae3dm+81 x0kR, are connected to a battery in the following way: “Two resistors 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 resistodamb + x (y1ekmj803qors?

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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 i.e58l rw aoc+-ukp 8sm7 hkyn2nternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amm k.k eu +snymc8-2pa8ro5lwh7eter 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 shown to the right. The three bulbs dki/9dihp;9 moppk 571, 2, and 3 - represented as resistors in the diag/p d 5;9o ikdphipk79mram
- 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. I1 g5-pmesf.9xn7kj ivf the current in all three resistors is equal, which of the follo 5pgfeix m nks7-1.jv9wing 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 simpler+npi0kt7nr) 9ri 2mv electric circuit composed of 5 identii7v9+kit )0rpnr 2nmr cal light 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 st 0w/kb6;z.;bm g d+r1eqjzumcatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resis zurg 0w1dbq zc;/jek+m6 m;b.tances?


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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 battery. Bulb X ijt5*i9r+ o3dsyz 4affrl27cb s brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same bryr5l 4foj79ai+z2s*b c 3tfd attery, 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 thrurdr;4vc, h89n ku3c smkh;at.s))xeough the identified resistor in 5 seconds once the circuit was closed? ndt)k8e3 h;mh 4cs9c;u.s, )arkuxr v


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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 +ca cl0ths/zm87a3 y lthe following simple circuit have the same resistance, which would dicsct0 a/m yz3 la8hl7+ssipate 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 cur3oxd bx;0i ; mvks*o(yrent through the 6.0 Ω resistor is 1.0 A. What is the power supply volt;x oosb;mx*(vid 30kyage 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 to -h;)1o 6e p) jbccdybqa battery. Suppose R1 carq1 oe)b cpdh)-;6 bcjyries a current of 2.0 A, R2 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 different resistors R1, R2 andR3 are connected in paralleka3tnpa o)2sdg x,p0mh ks)25 l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the od)t30hpk2ams5)a,sgk px n2 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 120 volts. What1uvm )juv13zk)p.k 2eit.:a k,zbfc z is the maximum value of the current undetj)azf : zevi1bk )k3.u kpm v.cu1z2,r 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 6vi 6dgdq (o.yaxa1t 0t4l2.8w : fdnyk0 watt lightbulb designed to operate at 120 vot0ddl 1k .( i.x wyyvtd46 anf2ag8:oqlts?

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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 flowq7ssldu:w , pyn;qh. ;s through a 4 ohm resistor that is dissipating 36 watts of ,shw;dp s.qu 7ql :y;npower?

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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 ca (/ au.yo5 uqgky7r-jlothes is marked "120 volt, 600 watt.” In normal use, the (ja/5-aquo uy.7 grkycurrent 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 producedsqr+tc -9dsfwvb3 d9 5 by a circuit contd+ rb-9st 9c5vf3wsqdaining 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 resye - 5dh uzzc,1ln4 ()2h5 bbwidddd9wistors. Which of the following equivalent resistances CANNOT be pdhb-zd 9n4blw5,ddez2hcw y ()51 udiroduced 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 valurn*rsi:1ps3uci+ 0 if meoo57es can be connected together in different configurations. If all three resistors are used in a circuit, how many differn f *eioui+p5m s:7sorr ic130ent 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 7 /j/0 a+my no*mlcw+ecrz:vgis connected to 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 seriz /+wa:yemg 7+n ro/cmj c*0vles 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 a ) aa(f5rvks:resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which okar v5a: as)f(f 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 f 5gvfdyx8/z7 -p je*)z5ujvk3 g7d ngdesigned such that it has a 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 wapj38zy f7gk-z exd75j*g5 v/v )dnfugter 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 resiqk . af azn6v(dw406sxstor that is dissipating 36 watts of powernqaakf 4 .6 v0(dxz6sw?

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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 whe1u.y b i(m*uuen connected to 120 volts. 1 e yu*.buium(If the 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 muchj lu5lg jkg ,+xz2hd)q m/.l(h would it cost to keep a 100W lightbulb lit continuously for 1 year at a 2zh l/l) (jx5d+ g,muh.lqjkgrate 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 power o,:evk 8kj h 65ckdfx2jk1. vlmf 24.0 W associated with the bulb. Which one of the followinhdkljce2 vxk8k1 v ,fk.65:mjg 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 a99h hg,a feib8y x4hpt5 jmo16t 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 amperex,9pt59h64f ihje oh8mbg ya1 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 isj3mvfoiww, l,,jdb c40v j3i qk,1ct, connected to four resistors to form a simple circuit as shown to the right. 3c ,c3t4,fv,wijjkm0lq wjd1,ob,i v
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 form a simple c;q, agi*qz uj6ircuit as shown to the rightq ij*za,6qu;g.
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 swi 1p1im1yf4kvfxt0 kw:tch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper11vf1kw0k 4pmy txf:i es.
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 67vo5ik;o:r2dj6o8fxd a4 z goqq ( eethree resistors are connected as shown. With the switch :42 oi 5oxezdrf6 e(adjo7 q8 k6;qogvopen 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 a+) gggu 2kif u8s.92vdbb mn,immeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amg)kg.igb2+un8u, ib2 m s9vdfperes.
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 equivalenjcsu5)nnx d0e((y /sbtn /k0ft resistance? Assume that all wires are ideal, the battery hads5se/yc t0 u )(xj/f(nk0bn ns 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 resistanceyjf, 4. xce3ie of the circuit shown to the right with resistances i4,3f.jcexye $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistrk 2z+s8 edh5xvq 0zk3g,rc:rors connected in a combinatice3k,rgrzh50+x:rk2zq d v8 son 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 shows five ide;hyj9uh9xw 0ww n: d5untical resistors connected in a combination:nju5w9y ;9 x hdwhuw0 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 o9fp9w 0 77ybmg7a.b pps,ii . e+jzqcnf the bulbs are identical. Which bul7bbgp.+ c9 aqzfjwn,7e.9is07p i pymb 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 battery, anh- q,e.ox9i rdv 5x2qf ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in i.fd9,e-5o hxxqvr q2the 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 bykz99mj y7bi kby91whd *.2eammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperjk92yzyd*mw. h9 ybbbie791kes.
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 resistors are con0 g;6dz/oplet o6x0n rnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere6 d 0zxr/olg0n6poe; ts.
When the switch is closed, what would be the current in the circuit?


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