Inductors

The inductive reactance of L₂ is _____ in the given circuit.

A 3.5 k

B 4.4 k

C 16.3 k

D 23.3 k

ANS:B - 4.4 k

Here total inductance is l = 1/l1+(1/(l2+l3)).

l = 1/450mh+1/(100mh+370mh).

l = (10^6/450+10^6/470) = (2.22222+2.12766)10^6.

l = 4.34988k.

Nearest value is 4.4 kohms.

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