If the speed of a moving magnet inside a coil increases, the electric current in the coil
increases
decreases
reverses
remains the same
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC CDS-2 – 2019
– Faraday’s Law states that the magnitude of the induced electromotive force (EMF) in a circuit is proportional to the rate of change of magnetic flux through the circuit.
– When a magnet moves near a coil, it causes a change in the magnetic flux passing through the coil.
– Increasing the speed of the moving magnet increases the rate at which the magnetic flux changes.
– A greater rate of change of magnetic flux induces a larger EMF in the coil.
– According to Ohm’s Law, a larger induced EMF results in a larger induced current, assuming the resistance of the coil remains constant.