Answer to Question #210980 in Electricity and Magnetism for Nabeel khan

Question

State and explain the phenomenon of electromagnetic induction and also explain various methods of changing the magnetic flux through a loop state and explain faraday's law of electromagnetic induction.

Answer 1

Electromagnetic induction is the production of an electromotive force across a conductor when it is exposed to a varying magnetic field.

  There are three ways to change the magnetic flux through a loop state

• Change the magnetic field strength (increase, decrease) over the surface area
• Change the area of the loop,increase by expanding the loop, decrease by shrinking the loop
• Change the angle between the surface defined by the loop and the magnetic field vector.

Faraday's law of electromagnetic induction state that the magnitude of the induced emf in a circuit is equal to the time rate of change of magnetic flux through the circuit.