Pure inductors each of inductance 3 H are connected as shown in figure. The equivalent inductance of the circuit is

Options

A. 1H
B. 2H
C. 3H
D. 9H

Answer

A

Explanation

In figure, three inductors are connected in parallel.
thus, `(1)/(L_(P))=(1)/(L_(1))+(1)/(L_(2))+(1)/(L_(3))=(1)/(3)+(1)/(3)+(1)/(3)`
`therefore L_(P)=1H`