A single phase 120 V, 60 Hz supply is connected to the coil of Figure. The coil has 200 turns. The parameters of the core are as follows: Length of core = 100 cm Cross-sectional area of core = 20 cm* cm Relative permeability of core = 2500 (a) Obtain an expression for the flux density in the core. (b) Obtain an expression for the current in the coil. Solution