A 12.0 khz, 16.0 v source connected to an inductor produces a 4.00 a current. what is the inductance?

Inductive reactance (Z) = ω L = 2Πf L = (2Π) (12,000) (L)

I = V / Z

4 A = 16v / (24,000Π L)

Multiply each side by (24,000 Π L):

96,000 Π L = 16v

Divide each side by (96,000 Π):

L = 16 / 96,000Π = 5.305 x 10⁻⁵ Henry

L = 53.05 microHenry