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Physics - Magnetism Question with Solution | TestHub

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

PhysicsEasysingle choice

A solenoid $1.5 m$ long and $0.4 cm$ in diameter possesses $10 turns / cm$ . A current of $5 A$ flows through it. The magnetic field at the axis inside the solenoid is

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Answer:

Solution:

Magnetic field at the axis inside the solenoid

$B = μ_{0} ni$

Here, $n = 10 turns {cm}^{- 1} = 1000 turns m^{- 1}, i = 5 A$

$∴ B = 4 π \times 10^{- 7} \times 1000 \times 5$

$= 2 π \times 10^{- 3} T$

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

⏱ 2mℹ️ Source: PYQ_2020

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