Recent content by Amir H.Saba

yes, your sentences is true ,but my query is that π is a number that related to sphere.but µo is a constant that related to environment.and why is a special number that has π ? µo is exactly 4π 10^-7 but if it is a constant about environment , why it is exactly a special number ? I think it...

Hi as you know according to ampere's law ∫B.dl=μ0I but why μ0 that appears in Maxwell's equations is exactly 4π *10-7 ? for example in electric field ε0 is 8.85 *10-12 and μ0 like ε0 is a constant that is related to material properties and why this constant is a special number as π that B...