Express The Relation Between Number Of Lines Of Force And The Net Positive Charge ?
A signification relation between the net numbers of lines of force passing through any closed surface in the outward direction and the net positive charge enclosed within that surface was discord charged enclosed within that surface was discovered by Karl Friedrich Gauss (1777-1855). In the preceding sections it was shown (for the case of an isolated point charge) that the total number of lines of electric flux emerging from a charge is exactly equal to that charge (in the mks system of units). It is evident that the same net number of lines of force will pass out of any closed surface of any shape if the surface completely encloses the charge the generalization of this conclusion is known as Gauss’ law.The net number of lines of force in an electric field that cross any closed surface in an outward direction is equal (in the msk system) to the net positive charge enclosed within that surface. In symbols Gauss’ law may be stated by the equation previously given as ψ = ∑Q.