A 2 amp current is flowing through two different small circular copper coils having radii ratio 1:2. The ratio of their respective magnetic moments will be
Current loop and bar magnet as magnetic dipole, field along axis and equator
Every question from past board papers on Current loop and bar magnet as magnetic dipole, field along axis and equator, newest paper first. Open any question for its full worked answer.
NEET UG 2025 question paper (official, booklet 45)
Full paper →NEET UG 2024 question paper (official, booklet S6)
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An iron bar of length L has magnetic moment M. It is bent at the middle of its length such that the two arms make an angle \(60^\circ\) with each other. The magnetic moment of this new magnet is:
NEET UG 2023 question paper (official, booklet G6)
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The net magnetic flux through any closed surface is :
NEET UG 2021 question paper (official, booklet M4)
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A uniform conducting wire of length 12a and resistance 'R' is wound up as a current carrying coil in the shape of,
(i) an equilateral triangle of side 'a'.
(ii) a square of side 'a'.
The magnetic dipole moments of the coil in each case respectively are :
NEET UG 2019 question paper (official, booklet P1)
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At a point A on the earth's surface the angle of dip, \(\delta = +25^\circ\). At a point B on the earth's surface the angle of dip, \(\delta = -25^\circ\). We can interpret that :