Q6: A voltage source of amplitude Vg = 50+j 40 volts and a source impedance Zg = 50 Ohm is connected to an antenna having a radiation resistance Read 70 Ohm, loss resistance = 1 Ohm, and a reactance jXj25 Ohm. Calculate the radiation efficiency of the antenna, the real power delivered by the source, the real power input to the antenna, power radiated by the antenna and the power dissipated in the antenna. Q7: Define the following using suitable equations and figures: (i) Linear, elliptical and circular polarizations including the sense of rotation, (ii) Isotropic, omni-directional and directional radiation patterns, (iii) Radiated power density and radiation intensity.