CBSE Class 12-science Physics Electromagnetic Induction
Magnetic Flux
Establish relation between electricity and magnetism. Faraday's experiments and definition of magnetic flux in terms of magnetic field and area vector.Faraday's Laws of Induction
State Faraday's Law and apply Lenz's law to find the magnitude and direction of induced Emf which can be expressed as rate of change in magnetic flux.Motional emf
Study Motional emf due to the relative motion of a conducting rod with respect to a uniform magnetic field.Eddy Currents
When a conducting material such as a metal, moves through a changing magnetic field then currents called eddy currents are induced in the volume of the material.
Eddy currents dissipate lots of heat that results in Joule's heating.Inductance
Define self and mutual inductance and their SI units. Working principle of transformer. Relate time varying magnetic flux with self induced or back emf.AC Generator
1. DC: Constant direction with or without time varying magnitude of voltage and current.
2. AC: Keeps changing direction at a regular frequency.
3. An AC generator produces an alternating emf : e = NBA wsin wt, where
