Which of the following units denotes the dimensions [ML2 / Q2], where Q denotes the electric charge?
(a) Wb / m2
(b) Henry (H)
(c) H / m2
(c) weber (Wb)
Correct option (b) Henry (H) Explanation :
Magnetic energy = 1 /2 LI2 = Lq2 / 2t2 [ as I = q / t]
where L = inductance, I = Current Energy has the dimensions = [ML2 T-2] Equate the dimensions, we have
