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Inductors

Q1: When current flow tries to decrease in an inductor, the magnetic field _______________ and the voltage polarity across the inductor _______________.

A collapses, remains the same

B expands, reverses

C collapses, reverses

D expands, remains the same

ANS:C - collapses, reverses

The flux across the inductor depends on the rate of change of current and it is induced so polarity will be reversed.



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