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A lamp having a resistance of 25 ohm is...

A lamp having a resistance of 25 ohm is not allowed to pass current more than 5 A. Find the value of the inductance, which must be used in series with the lamp, which is supplid by an a.c. of maximum r.m.s. 325 V at 50 Hz.

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MODERN PUBLICATION-ALTERNATING CURRENTS-EXERCISE
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