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The field winding of a 200 V d.c. machine has a resistance of 20? and an inductance of 500mH.
Calculate:
(a) The time constant of the field winding
(b) The value of current flow one time constant after being linked to the supply
(c) The current flowing 50 ms after the supply has been switched on.
explain the alphanumeric codes
The critical temperature above which the ferromagnetic materials lose their magnetic property is known as (A) Hysteresis. (B) Curie point.
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