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A silicon iron ring is wound with 800 turns, the ring having a mean diameter of 120mm and a cross-sectional area of 400mm2.
If when carrying a current of 0.5 A the relative permeability is found to be 3000, calculate
(a) the self inductance of the coil,
(b) the induced e.m.f. if the current is reduced to zero in 80ms.
STATOR: It is made up of a number of stampings which are slotted to be given windings. The stator carries 3φ windings and is fed from 3φ supply. It will be for a exact number of
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what is electrostatic shielding
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