Consider the linear antenna oriented along the z direction current given by I(z)=I0 cos(p z/d), with |z| less or equal d/2. The length of the antenna is d.
(a) Find the linear charge density r(z) (assume the time dependence is governed by the frequency w, as usual).
(b) Find dP/dW in terms of the impedance of free space Z0, the current amplitude I0, the wavevector k, and d.
(c) Find the total power radiated.
(d) From the plane waves produced by this oscillating electric dipole, consider those propagating along the positive y-axis. In what direction points the magnetic field H and in what direction the electric field E?
Is there any notification or gst council meeting where compulsory registeration of interstate supply revoked upto 20L with reference of Sec 24 Chapter VI of CGST Act 2017