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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 c*l4:e8gozo m kurrent exists in the metal resistor connected to the battery. Which one of the following choices best deogmloze:4 *8kscribes 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 conne2trxr32zr gdi)(ha 4ected in parallel, the_________each resistor is thtar3 242e i z(rxd)grhe 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 ligalwahi (:u 8j/htbulb causes the filament to becomawu li (/haj8:e 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 replacedeyq3 nz *oh-5d with LEDs. LED is the acronym for which one of the fod e *qzh35-noyllowing 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 cros:n2ze4p;fv j fs-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that thf jn:efz ;pv42e 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 of the b:5.;hrvju csgp) r3lbl :4jo same material. Wire II has twice the diameter and twice the length of I. If I harg3p4: l)lcb.ujovjbr s:h5 ;s 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 cprjy u 3u fi+,)9ht9mdiameter and half the length of wire X. If wire X has a resistance o9iy9upm+ t c,u 3fhjr)f 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 rn4amk .fkz/oav.bg-lb/if1, .llr 9b adius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becausl., kn fzkl./ abgmabiv-9 or1.4l/b fe 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 bulbc lvg ykr-0o(-. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a giov0yk( - -crlgven 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 material8 zjk4j fe+-kt. The length and radius of each resistor is: ef-kjtj8+k4z
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 connecte :ho8ati kf:9(zx1wu mgjl , e1mw;:eed 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 serium:gkwfwlx ,;o1m(z8hj ee9 ei:a t: 1es 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 dib/-kooz063rj51 upx ; cxecubagram has internal resistance 10.0 kW anx oc0exb1 3kbu6 ocz-pu 5j/;rd 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 shown to the right. The thr h7upqbt(k t58ee bulbs 1, 2, and 3 - represented as b587u tth kq(presistors 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 circui) xw5 tz2p1phkt at the right. If the current in all three resik2z h15ptp)wx stors 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 composed of 5 *sq f9-xa8vs tidentical light bulbs and 2 flashlight cells. Which bu fq8as-xvts *9lb (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 follo y beu.d5w:8xiwing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and5ywx ei u8b:.d 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 o5mocw0c-y mlyn8 : m(andY are connected in series 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 observymo(mn 8o cy -:l5m0cwed?


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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 idimae7pzit-js (72.xx -shrv- entified resistor in 5 seconds once the circuiti rs2-(tze.hj x-i- vspm77x a 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 in the following simple circuit have the s2kp 1 6kprjx2iame resistance, j2 pkrkxp21i6 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 circ0v z(ud0go3t4ptw*ip iv : h(cuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What i* 0u(c(ip4vg :30whiottv dz ps 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, and R3 are connected in series to a battery. Sup xh* njcndx 1voim: c:9lcn/:(pose R1 xic9o/n:ch:nl(x:c vn *1mjd 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 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 andR3m(r *hri77v7xf))m v+lffh xo are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 fi *vvmh7 r oxmff)r+( h7l7x)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 120 volts. b14j6t2gu aje sqdd8pah : q0+ What is the maximum value of the current under th d:4 2j6u+0djsaqt8hpbeqa1 g ese 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 designee 1*exik (x:*vhhgz2ld to operate at 120 voltse l(z1*kgx2:e hhxv*i ?

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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 dissipatrs)difzr8p c s 88c9k5ing 36 watts of kzd8s sir5 c )cf8r98ppower?

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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 i ,b qztykqofe )t i,ly/ji0sphgb2l*,lz;;4 ;s marked "120 volt, 600 watt.” In normal use, the curr ;hf ;,lz g4bpit k0 yo2qe/zq;il)*sy jbl,t,ent 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 folli:wh 8(ky.t 3otm lh99:wui csowing resistances could NOT be produced by a circuit containing only three : 8i3y:ti w mtu(s.hhwcko99l 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 follfs49 k xjksp21owing equivalent resistances CANNOT be produced using all three 1xps9kkf 2js4 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 cob, 0dvq-/yv sznnected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prod y 0svv-bq/dz,uced?

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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 cwuz qa-gng 9n60tq-4lonnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipaguangl9qn0 -z 4tq- w6ted 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 connected in p *ip pczda n4)a8o nvpm,+av-7arallel, the equivalent resistance of the combination is 5Ω . Which of the followinc-an8 m*viz4,dvo 7appn+pa) g 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 reroka*sx5kqecixf/(n - m; t 6,sistance of 12Ω when operating at 120 volts. What is the minn;fkxa ,qectm6 xr ( -*k5s/oiimum amount of time that it 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 curr..p urwtme .rp :s)0xpent flows through a 4 ohm resistor that is dissipating 36 watts of poweexr rmt0p.p s)wu.p:. r?

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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 currexmr,nj0v6 ( copf ojiu; ,;ty2nt when connected to 120 volts. If the price of ejjpfrc o( y 6minv; ,0to2;x,ulectricity 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 muc, aol c *5ldi:dhzs451:f:lrmw rmz+nh would it cost to keep a 100W lightbulb lit continuously for 1 year at::sci1r:+5 l almo zddw5r4 h*n ,mzlf 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 results in a power o04xs-:seq d hyf*zo9xf 24.0 W associated with the bulb. Which one oxhq xo94zy*s:d0e-s ff 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 ec:0zxkt8c l cz79(jcof 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 xjzck( 0l8c c: ect79zfuse, 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 simple circup+dazb.vmg )catc1df 4,8y ,sit as shown to th+pbdtza, ,amcdv81g .c)fy s4e 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 fo1 (cje))whtz.ubtak 2ur resistors to form a simple circuit as shown to the right.w)at h1u.tkz)bjc(e2
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 collrg;xp 7c)fm md+*i/+7conp nnected as shown. With the switch open as shown in the diagram thecp+/+ x l r*o77;l)gmfcdpinm 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 ar3pe mhr0fz7 8fma) ul8m4c*uoey .9c ye connected as shown. With the switch open as shown in the diagram the ammeter .3c849* y7mou eerm fyh8p0)fmauzlc 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 ( :m7z/wxcauj switch and three resistors are connected as showa:m zcwu7 j(/xn. With 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 s54niui30 e/ fei;oo tghown to the right, what is the equivalent resistance? Assume that all wirg t0ie e3iu4fo; i5/ones are ideal, the 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 equivalenolrudq1 /m8s sppjezf95 e-3n0i( h d;t resistance of the circuit shown to the right with respqs;dp se zuom j0eh(1 -flin95rd3/ 8istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idg6mv1ssyw iro1ow g0niv(4 : 4entical resistors connected in a combination series and parallel circuit ts 0 ynrvvomwgg6soi4(w:11 i 4o 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 identical evrt3/a 99nfqox h (:iresistors connected in a combination series and parallel circuit to a voltage source. toa/e9v39h(qri fxn:
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, 19 kdpmbcx c, aq,6s9wall of the bulbs are identical. Which bulb will be the bwq9,bm xcdks,16 pca9rightest?


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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 thre,. rquw4k9q4wgd j n)5hleng-e resistors are connected as shown. W -ldkwn).ernujg449w q hg, 5qith 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 idea j mgez/fhugt(srw ;yt(6 b/q +va6cw(;wza92l ammeter, a switch and three resistors are connec qft9y6mwgz/uzb 6 (2haw+ge(tcra; sw; /j(vted as shown. 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 ammeter, (27 hq o yei u/4/r11enoj4l0gblfccpa switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme1qh 4bc j2ny7eeci 10p(r/fll/o ogu4ter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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