Determine the magnetic field strength, Physics

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A coil of 300 turns is wound uniformly on a ring of non-magnetic material. The ring has a mean circumference of 40cm and a uniform cross-sectional area of 4cm2. If the current in the coil is 5 A, calculate

(a) The magnetic field strength,

 (b) The flux density and

 (c) The total magnetic flux in the ring.

 


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