Question

A uniform electric field exists in x-y plane. The potential of points A(2m, 2m), B(–2m, 2m) and C(2m, 4m) are 4V, 16 V and 12 V respectively. The electric field is :-
(1) (4î + 5ĵ) V/m
(2) (3î + 4ĵ) V/m
(3) – (3î + 4ĵ) V/m
(4) (3î – 4ĵ) V/m