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Lenz''s Law states that the Nature of induced emf in the coil is such that it opposes the causes of it.It can be explained by a simple understanding of Faraday EM induction experiment. When we push the N-pole of magnet towards the coil, the flux change with coil is such that it develops a North Pole on it. Therefore they form like pairs of magnet, which opposes the relative motion. Therefore An External force is required to push the magnet. When we pull the magnet out, Coil develops a South Pole which attracts it. Hence Again Some Mechanical Force is required.Therefore Lenz modified Faradays Equation as E=-d?/dtwhere E=induced emf, ?=magnetic flux associated with it.Negative Sign shows that the EMF is of opposite polarity than the Magnetic Flux.
Kohlrausch's law (F. Kohlrausch): If a salt is dissolved into water, the conductivity of the solution is the total of two values one based on the positive ions & the other dep
Q. In Newton's ring experiment, the diameter of certain order of dark ring is measured to be double that of the second ring. What is the order of the ring? Data :
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Describe how tunneling takes place in reversed bias When junction is reversed biased, p-region moves up with respect to the n-region as a result, filled energy levels on p- sid
IF a football player kicks a football so that it spends 3.0 seconds in the air and travels 50m, then find the velocity and angle of the kick.
Major steps for analyzing forces in uniform circular motion: Let consider one axis along the radius of circle (i.e. in direction of acceleration) and other axis perpendicular to th
Experiencing a constant horizontal 1.10 m/s wind, a hot-air balloon ascends from the launch site at a constant vertical speed of 2.70 m/s. At a height of 202 m, the balloonist main
The signal which has only two values. I.e. either a constant high value of voltage or zero value is known as digital voltage signal
Quality: It is the characteristics of a sound by which we can distinguish among two sounds of the similar pitch and the loudness is known as quality of sound.
meaning of pull
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