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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismProperties of magnetEasy2 minPYQ_2020

PhysicsEasysingle choice

The magnetic induction field strength due to a short bar magnet at a distance $0.20 m$ on the equatorial line is $20 \times 10^{- 6} T$ . The magnetic moment of the bar magnet is

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Answer:

Solution:

$B = \frac{μ_{0}}{4 π} \frac{M}{d^{3}}$

$20 \times 10^{- 6} = \frac{10^{- 7} \times M}{8 \times 10^{- 3}}$

$M = \frac{1.6 \times 10^{- 7}}{10^{- 7}} = 1. 6 A m^{2}$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:MagnetismSubtopic:Properties of magnet

⏱ 2mℹ️ Source: PYQ_2020

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