1) Derive an expression relating the velocity of the coil to the maximum induced voltage. To start off with let flux through area A be some function...
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1) Derive an expression relating the velocity of the coil to the maximum induced voltage. To start off with let

flux through area A be some function of the distance of the magnet above the coil, y:

flux through A = f(y)

a) Use faradays law to make an expression for the emf in terms of f(y)

b) the magnet moves through coil with a speed v. make an expression relating v and y

c) use your expression from a) to come up with an expression for emf in terms of v. (hint remember chain rule)

d) we can get a rough estimate of the velocity of the magnet as it passes through the coil by assuming that the only force acting on it vertically is gravity. Is this true?

Top Answer

B = f ( y ) a) EMF in Coil = ( d B ) / d t = ( d F ( y ) ) / d t... View the full answer

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