Question

A point charge q is placed at the apex of a cone as shown in figure. find the flux linked through the base of the cone.

• A. 0
• B. $\frac{q}{8{ϵ}_0}$
• C. $\frac{q}{{ϵ}_0}$
• D. $\frac{q}{4{ϵ}_0}$

Answer 1

The correct option is D

$\frac{q}{4{ϵ}_0}$

$\varphi =\frac{q}{{ϵ}_0}\frac{2\pi (1-cos{60}^o)}{4\pi }=\frac{q}{4{ϵ}_0}$