The process of producing an induced current by a changing magnetic field is called:

Correct option is B

The correct answer is (b) electromagnetic induction

Key points:

• Electromagnetic induction is a current produced because of voltage production (electromotive force) due to a changing magnetic field.
• This process happens when a conductor is placed in a moving magnetic field (when using an AC power source) or when a conductor is constantly moving in a stationary magnetic field.
• The factors which influence voltage production are the number of cells and varying magnetic fields.
  

Information booster:

• Electromagnetic Induction was discovered by Michael Faraday in 1831.
• Some of the applications of electromagnetic induction are as follows: AC generators, Transformers, etc.