Maxwell's equations describe fundamental laws of …..

Options

A. only electricity
B. only magnetism
C. only mechanics
D. both (A) and (B)

Answer

D

Explanation

Maxwell.s equations are as follow :
(i) `oint vec(E ).vec(d)a = (Q_("enclosed"))/(in_(0))` (Gauss.s law for electricity)
(ii) `oint vec(B).vec(d)a=0` (Gauss.s law for magnetism)
(iii) `oint vec(E ).vec(d)l=-(d phi_(B))/(dt) " "` (Faraday.s law on electromagnetic induction)
(iv) `oint vec(B).vec(d) l = mu_(0)i_(C )+mu_(0)in_(0)(d phi_(E ))/(dt)` (Ampere - Maxwell law)
Out of above law, one is for electricity and other three are for magnetism.