The relative motion between the magnet and a coil is responsible for generation (induction) of electric current in the coil. This is in accordance with
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → Faraday's Law
When the magnet and the coil move relative to each other, the magnetic flux through the coil changes. A changing flux induces an emf, and hence a current in the closed coil; this is Faraday's law of electromagnetic induction, \( \varepsilon = -d\Phi_B/dt \).
NCERT (2026-27):
The Experiments of Faraday and Henry – “… It shows that it is the relative motion between the magnet and the coil that is responsible for generation (induction) of electric current in the coil.”
Faraday’s Law of Induction – “From the experimental observations, Faraday arrived at a conclusion that an emf is induced in a coil when magnetic flux through the coil changes with time.”