# Force on a charge due to a square plate.

A particle having a charge q is fixed at a height h above the centre of a fixed square plate of uniform surface charge density $$\sigma$$ and side 2h.Find the electrostatic force on the charge due to square plate in N.

Details:

q=50$$\mu$$C

$$\sigma$$=5$$\mu$$C/$$m^{2}$$

h=10cm

Permittivity of free space=$$8.85\times10^{-12}$$ in S.I.

Hint: You do not need much of calculus ( i.e. not much integration involved).

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