Question

electric field at a point 0.9 M away from a point charge 1.8 μc is​

Answer 1

Answer:

Explanation:

according to Gauss theorem,

electric flux is the ratio of charge inclosed into the Gaussian surface and permittivity of medium. e.g.,  

here, q is charge inclosed into the Gaussian surface.

given, q = 2 × 10^-6 C and

=8.85 × 10^-12 C²/Nm²

now, electric flux = 2 × 10^-6/8.85 × 10^-12

= 0.23 × 10^6 Nm²/C

hence, electric flux through the surface is 2.3 × 10^5 Nm²/C