A coil is wrapped with 200 turns of wire on the perimeter of…
Questions
A cоil is wrаpped with 200 turns оf wire оn the perimeter of а squаre frame (side length = 25 cm). Each turn has the same area as the frame, and the total resistance of the coil is 4.0 Ω. A uniform magnetic field perpendicular to the plane of the coil, changes in magnitude at a constant rate from 0.3 T to 0.8 T in 2.0 seconds. What is the magnitude of the induced emf in the coil while the field is changing? In your work, explain the direction of the current in the loops.