Neco 2024 Physics Question 41

A rectangular coil of 50 turns has dimensions \(0.20\,\text{m}\) by \(0.10\,\text{m}\). It is placed in a uniform magnetic field of \(0.5\,\text{T}\) perpendicular to the plane of the coil. The coil is pulled out of the field so that the side of length \(0.20\,\text{m}\) remains parallel to the field lines and the coil moves at constant speed, leaving the field completely after \(0.40\,\text{s}\). \( (a) \) Determine the speed of the coil as it exits the field. \( (b) \) Calculate the average magnitude of the induced emf in the coil during this motion. \( (c) \) State the direction of the induced current as seen from the side where the magnetic field points towards you.