A small charged ball B hangs from a silk thread S, which makes an angle with uniformly charged sheet P, The surface charge density of the sheet is proportional to:(1) cot (2) cos (3) tan (4) sin
A small charged ball B hangs from a silk thread S, which makes an angle with uniformly charged sheet P, The surface charge density of the sheet is proportional to:
(1) cot
(2) cos
(3) tan
(4) sin











