COMEDK2012PhysicsElectromagnetic Induction
According to Faraday's law of electromagnetic induction an emf is induced in a coil, if
Options
- Aelectric flux links with the coil
- Bmagnetic flux links with the coil
- Cmagnetic flux linked with the coil changes
- Delectric flux linked with the coil changes
Correct answer
C. magnetic flux linked with the coil changes
Step-by-step solution
According to the Faraday's law of electromagnetic induction, whenever the magnetic flux linked with a coil changes continuously with time, an emf is induced in the coil. Its magnitude is equal to the rate of change of magnetic flux i.e., e=N d d t where, N is the number of turns in the coil.