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Q.

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

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a

at an angle tilted away from the diameter

b

perpendicular to the diameter

c

parallel to the diameter

d

at an angle tilted towards the diameter

answer is A.

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Detailed Solution

Given data:

The hemisphere is uniformly positively charged. The electric field goes from the center to a point on the diameter

Concepts used: Electric field

Explanation:

If the point lies on the diameter and away from the center of a uniform, positively charged hemisphere, the components of the electric field strength parallel to the diameter cancel out. Therefore the electric field is perpendicular to the diameter.

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