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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2019

PhysicsEasysingle choice

The magnetic field $(B)$ inside a long solenoid having $n$ turns per unit length and carrying current $I$ when iron core is kept in it is ( $μ_{0} =$ permeability of vacuum, $χ =$ magnetic susceptibility)

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Solution:

Magnetic field inside a long solenoid with an iron core inside it is $B = μ n I$ But $μ = μ_{0} (1 + χ) ∴ B = μ_{0} (1 + χ) n I$

Stream:AIIMSSubject:PhysicsTopic:MagnetismSubtopic:Biot-savart's & Ampere's Circuital law

⏱ 2mℹ️ Source: PYQ_2019

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