Question

Two coaxial solenoids are made by winding thin insulated
wire over a pipe of cross-sectional area A = 10 cm² and
length = 20 cm. If one of the solenoid has 300 turns and the
other 400 turns, their mutual inductance is
(μ₀ = 4π × 10 ⁻⁷ Tm A⁻¹)
(a) 2.4π × 10⁻⁵ H (b) 4.8π × 10⁻⁴ H
(c) 4.8π × 10⁻⁵ H (d) 2.4π × 10⁻⁴ H

Answer 1

Answer:

I think option B or C is the answer to the question

Answer 2

Answer:

I think option d is right ans