5 A solenoid has a core of a material with relative
permeability 400 The windings of the solenoid are insulated from the
core and carry a current of 2A If the number of turns is 1000 per
metre, calculate (a) H, (b) M, (c) B and (d) the magnetising current Im Rationalised 2023-24
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Magnetism and
Matter
 EXAMPLE 5