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Physics - Magnetism Question with Solution | TestHub

PhysicsMagnetismMiscellaneousMedium2 minPYQ_2003

PhysicsMediumsingle choice

A bar magnet is oscillating in the Earth's magnetic field with a period $T$ . What happens to its period and motion if its mass is quadrupled?NEET 2003

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Answer:

Solution:

Time period of bar magnet $T$ $= 2 π \frac{I}{14 H}$ Where $I =$ M.I. $= \frac{m L ^{2}}{12}$ $m =$ mass of magnet $∴ T = 2 π \frac{m L ^{2}}{12 MH}$ $\Rightarrow T \propto m$ $∴$ If mass is quadruplet then $T$ becomes twice.

Stream:NEETSubject:PhysicsTopic:MagnetismSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2003

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