Question

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 1

Explanation:

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 2

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OPTION:-(c)

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