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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.
A ray of light itinerant in air passes through a flat plate of glass. Refraction takes place. Where the refraction does occurs? Ans: Refraction takes places when light tra
sketch the setup abd show the angulare distace between successive dark bands is----------
Ergosphere The region about a rotating black hole, among the event horizon & the static limit, where rotational energy can be extracted through black hole.
Coordinate System for Circular Motion In physics and circular motion is a movement of an object that was along the circumference of a circle or rotation along a circular path.
In solids, heat is move from conduction. We will study conduction of heat energy by a solid bar in the following section. Given a solid bar of thickness and area of cross-sectio
mass of body= 4 kg is dropped form height= 45 m Calculate the kinetic energy just before hitting the ground
Longitudinal Wave A wave is a disturbance of a medium that transports energy by the medium without enduringly transporting matter. Within a wave, particles of the medium are te
is it possible for the couple forces to be more than two?
Explain the applications of polarization of light? Write any four applications of interference of light. Illustrate how plane polarized light obtained by reflection.
The process of apparent change in frequency (or wavelength) of the light because of relative motion among the source of light and the observer is known as Doppler's effect.
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