PYQ NEET- Problems In Electromagnetics Electrostatics

2019:

The electric flux through a closed surface is given by:

Φ = q/ε0

In this case, the charge is at the centre of the cube, so the electric flux through any face of the cube is:

Φ = Q/ε0

2018:

The electric field at a point due to a charge q is given by:

E = kq/r2

In this case, the point C is the centroid of the triangle, so the distance from the charge q to the point C is:

r = a/√3

Therefore, the electric field at the point C is:

E = (q/4πε0a²)√3

2017:

The electric flux through a closed surface is given by:

Φ = q/ε0

In this case, the charge is at the centre of the square, so the electric flux through the square is:

Φ = q/4πε0