Question

An isosceles right angle triangle of side d is placed in a horizontal plane. A point charge q is placed at a distance d vertically above from one of the corner as shown in the figure. Flux of electric field passing through the triangle is

• A. $\frac{q}{36{\epsilon }_0}$
• B. $\frac{q}{18{\epsilon }_0}$
• C. $\frac{q}{24{\epsilon }_0}$
• D. $\frac{q}{48{\epsilon }_0}$

Answer 1

The correct option is A $\frac{q}{36{\epsilon }_0}$

Let there is a cube of edge d with $ABCD$ as on face and charge a one corner

$\therefore \varphi =\left(\frac{q}{6{\in }_0}\right).\frac{1}{3}.\frac{1}{2}$

$\varphi =\frac{q}{36{\in }_0}$

Hence,

option $\left(A\right)$ is correct answer.