Question

Match the physical quantities given in column I with their dimensional formulae given in column II - I stands for the dimension of current.

Column I	Column II
(a) Electromotive force (emf)	(p) ML2T–3A–2
(b) Resistance	(q) ML3T–3A–2
(c) Resistivity	(r) M–1L–3T3A2
(d) Conductivity	(s) ML2T–3A–1

(A) a – s, b – p, c – q, d – r 

(B) a – p, b – s, c – r, d – p 

(C) a – p, b – s, c – r, d – q 

(D) a – r, b – p, c – q, d – s

Answer 1

 The correct option (A) a – s, b – p, c – q, d – r

Explanation:

EMF = voltage = [M¹ L² T^–3 A^–1]

Resistance = [M¹ L² T^–3 A^–2]

 Resistivity = [M¹ L³ T^–3 A^–2]

conductivity = [M^–1 L^–3 T³ A²]