Two concentric coils have a mutual inductance of 150mH. The current in the primary varies with time as Ip(t)=10sin(100πt)A, where t is in seconds.
(a) Write the expression for the instantaneous emf induced in the secondary.
(b) Determine the magnitude of the induced emf at t=2.0ms.
(c) Calculate the rms value of the emf in the secondary.