Q. 244.4( 7 Votes )

A Rowland ring of

Answer :

Radius of ring (r) = 15cm = 0.15m

Number of turns in the ring (n) = 3500

Relative permeability of the ferromagnetic core (μr) = 800

Current in the Rowland ring (I) = 1.2A

Magnetic Field due to circular coil (B) =

Where, μ0 = Permeability of free space = 4π × 10-7TmA-1

B = = 4.48T

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