1a) find the equation of an electromagnetic wave, which has a period of 10^-4 sec, amplitude of 15 units and a positive maximum of 2.5*10^-5 secs
1b) if a uniform electric field, E = 20 a(subscript)y V/m is made to work along a circular path. Find the line integral of E around a positive quadrant of a circle of 10m radius.