faradays laws of electromagnetic induction
Answers
1 induced emf and induced current is produced in a coil by changing the magnetic field
2 induced emf is equal to the rate of change of magnetic flux
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magnetic flux is the product of magnetic field and area of the coil
electric generator is based on electromagnetic induction
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Answer:Faraday's Law of Electromagnetic Induction :
A change in the magnetic environment of the coil or conductor will cause a voltage(emf) induce in the coil. Faraday law is the fundamental relationship which comes from the Maxwell’s equation.
◇ Faraday's First Law : A conductor is induced with an electromotive force when the surrounding magnetic field changes.
◇ Faraday's 2nd Law : The rate of change of field is directly proportional to the magnitude of the electromotive force.
◇ Faraday's 3rd Law : The sense of the induced electromotive force depends on the direction of the rate of the change of the field.
E= – ndǿ/ dt.
In this the induced emf (e) and the change in magnetic flux (d) have opposite signs.
Explanation: