# An electricity and magnetism problem by Dhruv Patel

It has been experimentally observed that the electric field in a larger region of the earth's atmosphere is directed vertically down.; at an altitude of $$300\text{ m}$$ , the electric field is $$60\text{ V/m}$$ . At an altitude of $$200 \text{ m}$$ ,the field is $$100\text{ V/m}$$. Calculate the net amount of charge contained in a cube $$100 \text{ m}$$ on edge located between 200 mtrs and 300 mtrs altitude.

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