A point charge of 3.0 µC is at the center of a cubical Gaussian surface 90cm on edge. What is the net electric flux through the surface?​

Sagot :

Calculating the electric flux

Given

  • Point Charge (Q) = 3.0 µC
  • Length of edge = 90cm
  • Permittivity of Free Space (∈₀) = 8.85 x 10⁻¹² F/m
  • Electric Flux (Φₑ) = ?

According to Gauss Law, the electric flux is always depends to the amount of point charges. The length of a Gaussian surface is always discarded, as also the point chage is enclosed inside the figure.

Φₑ = Q / ∈₀

Φₑ = 3 x 10⁻⁶ C / 8.85 x 10⁻¹² F/m

Φₑ = 3.38 x 10⁵ N • m² / C

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