NEET2015PhysicsElectrostaticsActual

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

Options

Aperpendicular to the diameter
Bparallel to the diameter
Cat an angle tilted towards the diameter
Dat an angle tilted away from the diameter

Correct answer

A. perpendicular to the diameter

Step-by-step solution

When the point is on the diameter and away from the centre of hemisphere which is charged uniformly and positively, the component of electric field intensity parallel to the diameter cancel out. So the electric field is perpendicular to the diameter.

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