Answer:
- 100 Nm²/C
Explanation:
E = magnitude of electric field along x-direction = 10 N/C
θ = angle made by the direction of electric field with rectangular surface = 30
φ = angle made by the direction of electric field with normal to the rectangular surface = 90 + 30 = 120
A = area of the rectangular surface = 2 x 10 = 20 m²
Φ = Electric flux crossing the surface
Electric flux is given as
Φ = E A Cosφ
Φ = (10) (20) Cos120
Φ = - 100 Nm²/C
