A coil has 400 turns and self-inductance 3.5 mH. The current in the coil varies with time according to i=(680mA)cos[(πt)/(0.025s)]
A.) Estimate the maximum emf induced in the coil?
B.) Find the maximum average flux through each turn of the coil?
C.) Evaluate the magnitude of the induced emf, at t=0.018s?