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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 o0; *t-j smgbzexists in the metal resistor connected to the battery. Which onmzos-*bt0 jg; e 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 resistors are connected in parallel, the_________each resiaim-o;oh,q,lw- p. fpstor is the sapqo h ,.--ilp ,amwfo;me.

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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 th qe-)yg(a6b .r+wtomviv)ui8p 60l thin filament wire of a lightbulb causes the filamenp.mvwh er+8 l) atuv6(b0go-6 )i ityqt to become 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 househ4pi0wba p d e.a;i3)ywold lights are being replaced with LEDs. LED is the acronym for which onwd0ep ba3.p4)ayw i;i e 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 gra n eyuql)6p6mn s2:qh/8bqc4 hphite resistor 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. W6qh n leyhuqp4)qm8/nb :6 cs2hat 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 ar6 9dhgu0o7lt13knmw;7 4p)dxa vdmq le made of the same material. Wire II has twice the diameter andpm ndt7qk1ml94vw;o7 d)x gl 0 h3a6ud twice 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 material but has twice the diameter and h1 15 -a iiktf2po43kd lyk-zwqalf the length of wire X. If wire X has a resistance of R then wire Y would have a resistance oo 1i3wak i-k2lf4qkzy-d p5t 1f

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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 resi s,lj vn(tp7i/stor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the res/tjs7(iv l,p nistance 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 ma.wxg-blz *bvvm+1 i*nmw)x s7ly p91yke 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 pl 9y*wlxnipb)bm wy+*1- szvvg71x m.roduce 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.x4jo 5jh+1v rabhx(dg+bp+9q f5ybo the same material. The length and radipv5+9jxby (+ bh.f d+xho ra54b1ojgqus 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 R, are connected to a batter):goqo tur (z /p8d,tkq:)tvry 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 rd :/t k qr))poqt8o(g:utzvr, esistance 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 diagra 3dhcf: xtr b:xc3o*t+m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmxdt 3t+* bfx:3hc:ro ceter 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. nb4t62- vcvczThe three bulbs 1, 2, and 3 - represented t2v6c- znv4cb 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 electri1 2i/aey 83zhyye k5nwcal circuit at the right. If the current in all three resistors is equal, which of the fol85ewaz /31ne yhk2yiylowing 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 electriq0k-+v4wub vac circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbq +w04-vauvkbs)
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 concel,qv;c *0zkwdrning the simple circuit shown z*vcq;,l0kdwwhere 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 inw73 -)hwdst6 aq+xuac 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, whi wawt3)a67-dxh uqs +cch 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 identified resistor in dy2jbc 6.si y,5 second.sj y2,yi6dc bs 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 in the following simple circuit have the f)jg2ck0/ov,c usv9jsame resistance, which would dissivjsogfj/,ck)0 c2v9u pate 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 x4- nm:gqq8e 8v/)ubvqbu,tl6.0 Ω resistor is 1.0 A. What is the power 8x-mqblq/q:tbu eg 4n8 , v)vusupply 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,u(lr4mr-,xwr n yb-)y R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has blwm 4r u)xr,y y(--rna 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 os+v6cnp xzr,/gn4lcxx , ( :tresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, andn:c (lo/rx+4,g6 p, cvxxz tsn 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 volts. What is the maxim7 d3t.s5sshaha+hsey - uo93gum value of the current under thes.h5 9dug 33ya-a hsssshe +7toe 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 9+o ur3z 0p1n ynyb*ipff0y h,a 60 watt lightbulb designed to operate at 120 v30 inyb0p n*fh pu yr+fyz19,oolts?

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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 oh)q( z5 : b7d6npymt2 pq-t1odvy ntnq-m resistor that is dissipating 36 watt5 pttn7q (d6: yzdmvbqqoyn -)t-pn2 1s of 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 usede+ h.4um1q2hwr1-3 vtig khd v to press clothes is marked "120 volt, 600 watt.” In normal use, the current inv u.h- 32r vhhe+mkdi4w1tgq1 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 by a cira kk fbfc m2e;)0;i,fscuit containing only three if k2k c m;;bf)s,feia0dentical 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 following equivaleqv5d 3o 87) ce4b9iv/dvnqv vent resistances CANNOT be produced using b dovvvv 4edi8q/e37q95vc n) 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 fx h:h9qjh (l,w z*ehhvu)9y+q( j+z gvalues can be connected together in different confige(wj9z:ghh vf x*+l9qyj (+ h)qhu z,hurations. If all three resistors are used in a circuit, 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 5(wgy3a8w8wqg2 gttb, a total power P is dissipated in the circuit. How much total power is dissipated 2 w8ga(wg t wytgq85b3in 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 fa9nj 2jdn4uir96z)a nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cji 9r)f janad2nzu694orrect?

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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 desndpf1k ti*s1 ;igned 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 ftk;i s1*1pnd0.45 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 dilw95ni6z5yzn xr o+k(ssipating 36 watts of por +n9(xzo5lik z 5wyn6wer?

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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 heatt r(,nhm02k jqer draws 13 amperes of current when connected to 120 volts. If the pr0,2mhqr(k tnj ice 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 vg z1 hzf:r6x4ymr4h 8/ku)johow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rat6xfhr:81kgj o mu zy 4v/rh4)ze 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 cur 0+)q sgk7isnbrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best iks0 ng+s q7)brepresents 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 xn.vpi4* xh;5/ze m mbj*c b1aof 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 amperex b*zam e5m1c*.4i hxjnbvp/; 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 hl6v3 ok.w/no resistors to form a simple circuit as showo/6hk 3lonv .wn 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 rm3:mm m5o bw5resistors to form a simple circuit m5 5bm wm:mr3oas 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 ammetq(zjead+vtc /66u 7 over, a switch and three resistors are connected a v z/(jqo6cvet ud76a+s 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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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 r0 88kc9. s wckik9u b3uht2voaesistors are connected as i8c k2bucot9kav0.3h suw9k 8shown. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal amm m)y+aif854ubd v p2uceter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rby52cduumv4+p8 )fa i eads 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 resistance flx;czf/gq- ;? Assume that all wires are ideal, the battery has no intfqgfz; x ;/lc-ernal 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 with y+e lh6em fj)ju2 *ww* resuj26*hw*mfljew) y +eistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fi f)v oe8kqr97+)lj1e. ya4cerxb j dr0ve identical resistors connected in a combination sera7dkeve )) jro18.j49qf 0 lrcy+rbexies 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 ku/ kj,t + n.nx69tcgcfive identical resistors connected in a combination series and parallel c tk+ncx,jtu9c/ 6kgn. ircuit 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 are identical. Whic ig+/6as5fh+bnu:ya j h bulb will be the bn +yhgas+6ijf 5uba: /rightest?


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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, ubo1lf/w s, r8an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 18/frls bwu,o
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 switn )xwo c1dcq4*ra,g6c si(o,zch and three resistors are connected as shown. With the switch open as shoq *ogsc ,z,4 )i(rxoc1wn c6dawn 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, a switch and three resistors are copma1u3vlx j ): xtn q)t601vomnnected as shown. With the switch tptj)61)u: amnolx vqx v13m 0open 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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