Question

Two pure inductors each of self inductance L are connected in parallel but are well separated from each other. The total inductance is
(a) 2L
(b) L
(c) $\frac{L}{2}$
(d) $\frac{L}{4}$

Answer 1

answer : option (c) L/2

explanation : it is given that, Two pure indicators each of self inductance L are connected in parallel combination. but are well separated from each other.

   we know, when two inductors of inductance  L₁ and L₂ are connected in parallel then, total inductance, 1/L  = 1/L₁ + 1/L₂

so, here equivalent inductance, 1/L = 1/L + 1/L

so,L = L/2

hence answer is option (c)