By, definition, for a constant electric field, the flux will be:
Φ=EScosα where E=170N/C is the strengh of the electric field, S=πr2 is the area of the oval, and α=90°−θ=30° is an angle between the electric field lines and the normal to S. Hence, obtain:
Φ=EScosα=170⋅π⋅102cos30°≈46252 NC−1m2 Answer. 46252 NC−1m2.
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