Question

The velocity factor of a transmission line is $0.62$. Calculate dielectric constant of the insulation used

• A. $2.6$
• B. $3$
• C. $4$
• D. $5$

Answer 1

The correct option is A $2.6$

Here, V.F. = 0.62, k = ?

As $k=\frac{1}{{(V.F.)}^2}\therefore k=\frac{1}{{\left(0.62\right)}^2}=\mathrm{2.6.}$