Define Power. Prove that
`P= vecF.vecupsilon`
where the symbols have their usual meanings.

Show that n=sqrt(mu_r*epsilon_r) where the symbols have their usual meanings.

Show that I = (mu_r-1) H , where the symbols have their usual meanings.

Show that B =mu_0 (H+I) , where the symbols have their usual meanings.

Dimensions of 1/(mu_0epsilon_0) , where symbols have their usual meanings are:

State Coulomb's law in vector form and prove that vecF_21 = - vecF_12 where letters have their usual meanings.

Check the correctness of the relation : v=sqrt((E )/(rho)) where the symbols have their usual meanings.