Question

A hemisphere is uniformly charged positively. The electric field at a point on a diameter away from the centre is directed ______.

Options

• perpendicular to the diameter

• parallel to the diameter

• at an angle tilted towards the diameter

• at an angle tilted away from the diameter

Answer 1

A hemisphere is uniformly charged positively. The electric field at a point on a diameter away from the centre is directed perpendicular to the diameter.

Explanation:

In case of a uniformly positive charged hemisphere, if a point is situated at a point on a diameter away from the centre, the electric field should be perpendicular to the diameter. In this case, the component of electric field intensity parallels the diameter cancel out.