Electromagnetic Field Theory
In microwave communication links, when fading due to rain attenuation occurs then technique adopted for solving the problem would include

Antenna replacement and feed correction
Path diversity and frequency diversity
Amplitude timing and phase correction
Polarization shifting and code diversity

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Electromagnetic Field Theory
Which of the following statement is correct for divergence of electric and magnetic flux densities?

 It is zero for the magnetic flux density.
 Both are zero.
 It is zero for the electric flux density.
 These are zero for static densities but non zero for time varying densities.

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Electromagnetic Field Theory
Which of following is true for a purely inductive circuit ?

 Any capacitance even if present in the circuit will not be charged.
 Reactive power of the circuit is zero.
 Actual power of the circuit is zero.
 Apparent power of the circuit is zero.

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