Question

A Hertzian dipole consists of two _____ and ______ charges separated by a very short distance.

(a) unequal, opposite

(b) equal, same

(c) equal, opposite

(d) unequal, same

I had been asked this question in an international level competition.

I need to ask this question from Radiation in section Radiation, Baluns & Polarization of Antennas

Answer 1

Correct option is (c) equal, opposite

The explanation is: A Hertzian dipole consists of two equal and opposite charges separated by a very short distance. It is infinitesimal current element. It is a short linear antenna which carries a constant current throughout its length while radiating.