Find the selfinductance of a solenoid 62 cm long and 56 cm i

Find the self-inductance of a solenoid 62 cm long and 5.6 cm in diameter that contains 1900 turns of wire.

Solution

Self inductance of a solenoid L = (mu₀ * N² * A ) / l

= ( 4 pi * 10^-7 * 1900² * (pi * 0.028²) / 0.62

= 0.018 H = 1.8 * 10^-2 H