In: Physics
Explain with your own words the following concept (minimum 8
lines-maximum 15 lines):
• Electromagnetic Induction
Electromagnetic induction is the phenomenon in which current is produced by electromotive force due to change in magnetic field. It happens when a conductor is moving in a stationary magnetic field. The phenomenon was discovered by Michael Faraday and Maxwell gave mathematical description of it. Faraday's setup included a conducting wire coiled around a magnetic bar, the wire was attached to a device to measure the voltage across the circuit. It was observed that when the bar is translated along the axis of coil, there is some voltage generation in the device. The induced voltage is directly proportional to the number of coils and rate of change of magnetic field. Application of this phenomenon includes the machines in which electrical energy is produced by changing magnetic field e.g. motors, generators, transformers etc. The farady law is generalized as maxwell-faraday equation. The direction of induced field is given by Lenz's law.