Two coaxial solenoids are made by winding thin insulated wire over a pipe

Two Coaxial Solenoids Are Made By Winding Thin Insulated Wire Physics QuestionTwo Coaxial Solenoids Are Made By Winding Thin Insulated Wire Physics 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 solenoids has 300 turns and the other 400 turns, their mutual inductance is (μ₀=4πx10⁻⁷ T mA⁻¹)

Options

(a) 2.4πx10⁻⁴ H
(b) 2.4πx10⁻⁵ H
(c) 4.8πx10⁻⁴ H
(d) 4.8πx10⁻⁵ H

Correct Answer:

2.4πx10⁻⁴ H

Explanation:

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