Question

What is the pitch angle if the separation of turns is at 2 cm and the circumference is of 4 cm?

(a) 26.56

(b) 62.65

(c) 30

(d) 25.34

I got this question in final exam.

This key question is from Frequency Independent Antenna in section Frequency Independent Antenna of Antennas

Answer 1

Correct option is (a) 26.56

To explain: From the figure, \(α=tan^{-1}⁡\frac{S}{C}=tan^{-1}\frac{2}{4}=tan^{-1}⁡\frac{1}{2}=26.56\)