# The electric field!

From an isosceles right angled triangle of smaller side $$a$$, a similar triangle of smaller side $$b$$ having same mid-point of common hypotenuse , has been removed. Now this arrangement has been given a surface charge density $$\sigma$$. Find the magnitude of electric field(in $$N/C$$) to the nearest integer at the mid-point of hypotenuse.

Details:

$$\sigma = 1.1 \times 10^{-7} C/m^2 , a = 30 cm, b = 20 cm , \epsilon_{0} = 8.85 \times 10^{-12} F/m$$

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