The variation of induced emf (E) with time (t) in a coil if a short bar magnet is moved along its axis with a constant velocity is best represented as North pole is situated at left end of the bar magnet and South pole is situated at right end of the bar magnet

Step-by-step solution

As the short bar magnet approaches the solenoid, the magnetic flux linked with the coil increases. According to Faraday's law of electromagnetic induction, an emf is induced. By Lenz's law, this induced emf opposes the increase in flux, resulting in an emf of a particular sign (e.g., negative). When the short magnet is completely inside the long solenoid and moving with constant velocity, the total magnetic flux linked with the solenoid remains constant. Since the rate of change of flux is zero ( d dt = 0 ), the in