Question

A current is induced in a coil by electromagnetic induction.

• A. Only when coil moves in the magnetic field
• B. Only when a magnetic is moved into a coil
• C. Only when the coil and magnet move with respect to each other
• D. None of the above

Answer 1

The correct option is C Only when the coil and magnet move with respect to each other

A current is induced in a coil by electromagnetic induction Only when the coil and magnet move with respect to each other an induced emf as it has been induced into the conductor by a changing magnetic field due to electromagnetic induction with the negative sign in Faraday's law telling us the direction of the induced current (or polarity of the induced emf).