Two wires A and B of same metal are connected in parallel. Wire A has length and radius V and wire B has a length ‘2l’ and radius ‘2r’. Then the ratio of total resistance of parallel combination and the resistance of wire A is(a) 1: 2(b) 1: 3(c) 1: 4(d) 1: 5

Two wires A and B of same metal are connected in parallel. Wire A has

1.	Two wires A and B of same metal are connected in parallel. Wire A has length and radius V and wire B has a length ‘2l’ and radius ‘2r’. Then the ratio of total resistance of parallel combination and the resistance of wire A is(a) 1: 2(b) 1: 3(c) 1: 4(d) 1: 5
Answer» Correct answer is (b) 1: 3