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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismBiot-savart's & Ampere's Circuital lawEasy2 minPYQ_2020

PhysicsEasysingle choice

A wire is wound on a long rod of the material of relative permeability $μ_{r} = 4000$ to make a solenoid. If the current through the wire is $5 A$ and the number of turns per unit length is $1000 m^{- 1}$ , then the magnetic field inside the solenoid is :

Options:

Answer:

Solution:

$B = μ_{0} μ_{r} ni$

$= 1 0^{- 7} \times 4 π \times 4000 \times 1000 \times 5$

$= 8 π T$

$= 25.12 T$

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

⏱ 2mℹ️ Source: PYQ_2020

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