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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 exis x;):wdt ygx1t7 z+ ehzdawrb ;.)jm;mts 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 ofb+j; x.wm1;zatr:xhz wmd) gt ed;7 )y 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 connected in parallel, the_______ yfdyj3 xcs9a+l x,41z__each resistor is the z ylxfsyx+d,41ca9j3same.

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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 causes the filamet /4ks5(-xri0+mw yhe rv,k hqnt to become whit ,ek4i5ksqm(0/rhhtrv+ -wy xe 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 replaced with LEDs. L m67jiu+4mr bbwpb1e 7vml3n+ED is the acronymbn+bve 7 6mm l314ujmbip+wr7 for which one 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 cross-se 3e 2gsows(imb0 v3 *cx/lhcr-ctional area A. It is to be placed into a circuit, but it first must be cut in haloe/ vwm (r2cx-b 3 30isls*hcgf 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 of the same material. Wire II hasuj w7kn(i8b f4zp/ a*h twice the diameter and twice the length of I. If I has resist(bk/ni4 ufpj* 7hzw8 aance 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 diameter ax/u hf 1ejy(0und half the leyjf0u/x 1u e(hngth of wire X. If wire X has a resistance 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 resistor has length L and radius r. This pief:7o05s xzlj lce of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this malszl :fjx75 o0terial 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 brighters)3nzw ,7r ytt qjo-e1 light bulb. He decides to modify the filament. How should the filament of a lightbulr7yo1t3jq ,nz w-s)t eb 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. Thewr7,aiq/e62x,ve f ww length and radius of each resis6/ vwxa7,2e,wqw rfeitor 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 connected to a battery in the x3 f erzg2:sw3) xg;z)tjy foes 0n-*ifollowing jeoyr*2ef w 3tx)0n;z:)gif-sz3s gxway: “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 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 igm agq*+9-vme *cj :pmn the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readinqp mm*:+ *-gmejgc9avg 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 compo: w vyqwlytj v.78hk:p94 zsq7und circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dia jzq p::yq8y9kwts74l w7vv.h gram
- 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 aeybcczg)234mz np i4 *t the right. If the current in all three resistors is equal,be4*ni3gc) zyc2 pmz4 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 composedmpdx99alz :uy+xqsb+ /15xp v of 5 identical light bulbs and 2 flashlight cells. Which bulb (orx:9s 1xp+mqpbu d y+l5z x/v9a 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 is NOT true concerning t y*1(ymxtd le w2)ar8ghe simple circuit shown where resistors R1r* aem d82(1wl)x ytgy, 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 zm+q5m)b,sw7 lk5x pjseries to a battery. Bulb X is brighter than bulb Y5)m k7jxpwm sq5+ lzb,. 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?


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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 identifi7v2.uw/mc.wthfc 97fwf0.uqjn m uq1ed resistor in 5 sc m.q n jfmf/7 qtuh 1.w92w7uuv0fcw.econds 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 g/;k ps7k8jlsvijb7ac k +*5cx g;c d7resistors in the following simple circuit have the same resistance, whisgkjx;k k7c;a*5c/jg7+v8p ics7l d bch 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 w-,snq*a)yogt w*hx/y ;qg(k e current through the 6.0 Ω resistor is 1.0 A. What is the power supply hgoty* k)(w ys* x,n-;w/qgqavoltage 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 connetedp(g.p.aii4xs- : dcted in series to a battery. Suppoia epd4t-:ds.xg. i( pse 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 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, 3m, ;yn xv)eath4(skh R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acro3k;htva (syh ,m4exn)ss 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 120 volznzm/,y/d /9 vn(wmn rts. What is the maximum value of the current//,nrzm/myzw nn(v9d 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 60 watt lightbulb designed to operats1pk v ml a,tg,2/ nka2b2b,upe at 120 volts?nvb2ka2ap,/l ,m1s2b pk t g,u

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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 t) fotqad5 gvq*831 :uoniis0 a 4 ohm resistor that is dissipating 36 watts ofa)q 3 v0u*q 5s:tfgt8o1n odii 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 "12opk m-1ldu(c 00p0 oti0 volt, 600 watt.” In normal o im1( c0uod0tl0 pk-puse, 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 resistances5h.ht) m.d* 8 hdrhm 3hnkyl o-zsbg8p6yh*m( could NOT be produced by a circuit containing only three identilmm).tpz-*h 8ydmhy h 3*o86ghhkr.n hd( b 5scal 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 ofqrik c788jhb6wqk ( m; the following equivalent resistances CANNOT be produced using all three resistw 7c;qjk( h88b6rikmqors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistorsd;ak x,go60:ymz+th yh+ o8nr of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can b 0yhomxrk6zg, y ;h:+dt a8on+e 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 power P is :mefih y1 *fd5ug 5b1pdissipated in the circuit. How much total power is dissipg*pb fuf15 em:idyh 51ated 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 resistokh6q,u :y7xzmrs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following stat 6hmxk:u7q,y zements 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 resistance of 12Ω when ope( 5sdef+(/nau+3f 2lj yiq ,nn0pr kpprating at 120 volts. What is the rfpp,if 5le3u(a 0d2pqj/nn snyk+ +( minimum 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 current flows through a 4 ohm res ,pvzmbeyy6cz;j-.e; istor that is dissipating 36 watts of z,;y 6m-.jz pybveec; 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 u mz1yqb8s2it2 rifw0bp1q *6connected to 120 volts. If the pricw m28iqf q2iby 6* p1rutsb0z1e 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 muchd*jv opi51jzp.n w7x, would it cost to keep a 100W lightbulb lit continuously for 1 dxjo .i1jp v,7pz5*nw 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 c burk+diy t+,g(qo5-a lightbulb results in a power of 24.0 W qduci tr5+(gbo ,-k+ yassociated with the bulb. 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 family of six own;vw9:dcwh a.nhh h*t59( icvms 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 f w:hc( .9 mdicthh95;*vnhavwuse, 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 ci/ uyh ihn3exb:t(3u;c rcuit as shown to the( xu/3 ;:tbhuehnic3 y 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 con wy/8o 9jn(1ye3 tiupxnected to four resistors to form a simple circuit asy pj 91wi83uyx eo/tn( shown 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,h.j*7jl c *;taiiti;k c;r qb7 a switch and three resistors are connected as shown. With the switch open as shown in*qkjii; htt 77jcirc;*;.ab l 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 ammeter4w- -a;d 3crujst5 im0w(fy xp, a switch and three resistors are connected as shown. With the switch o4ryfu t3 ;dpji 0cmwsw 5ax-(-pen 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 ammeter, a switch and three resistors are co- x;wbw(m +mp.7l-xkr :t lnmlnnected as shown. With the switxbm-lm(7kww;+lr p: tmxn .l -ch 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, we 7tzc7gq4 p tg7jt/f+hat is the equivalent resistance? Assume that all wires are ideal, the baz7 e/74cjqtg+t g 7fptttery 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 resistance of the circuit shown to the )kgx3rw*c9mm tfl9 7w06pflrright with resistance*xwl7trg 9p)6cmw 390r mlffks $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idp2xddck57 d *pentical resistors connected in a combination series and parallel circuit to a voltage source. px2dc* kdpd57
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 f 4yzx 8nt+ lzg:3,a bvauoxy93ive identical resistors connected in a combination series and parallel circuit x, byg vy8a9z3 :3noat+u x4zlto 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, allhjsn+ gy 6 84s8jw pbuz+bos):y8u,4cuvrl c6 of the bulbs are identical. Which bulb will be the bright8jbu rh ,g6nc:4) oszc 6psy4uvyj l++88wusbest?


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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 amemiz;sf kt:g,.:qxl *meter, a switch and three resistors are connel,:sg :;zqetfx.* kmicted as shown. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal a;,f)hwiarq(z 4dy;g.**whtlbip b - emmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram g y.;*i4 w fh ip)aeqd(bwz,b-;r*tlhthe 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, a switch and three resistuw0sjx(k5wl c3qdw1b 0va h)ob+w4 b5ors are connected as shown. With the switch open as shownw j0k1 0baxv (l+u4)q5w w3wob5hbscd 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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