Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area A = 10 cm 2 and length = 20 cm . If one of the solenoids has 300 turns and the other 400 turns, their

Question

Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area $A =$ $10 cm^{2}$ and length $= 20 cm$ . If one of the solenoids has 300 turns and the other 400 turns, their mutual inductance is $(μ_{0} = 4 π \times 1 0^{- 7} Tm A^{- 1})$

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Answer:

D

Solution:

$M = \frac{μ _{0} N _{1} N _{2} A}{ℓ} = 2.4 π \times 1 0^{- 4} H$

TestHub · Accepted Answer

M = ℓ μ 0 ​ N 1 ​ N 2 ​ A ​ = 2.4 π × 1 0 − 4 H

Physics - EMI/AC Question with Solution | TestHub

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