Determine the inductance and resistance of the coil

Posted on 2014-01-28 18:07:00 in Engineering by ABIGAIL

The time constant of a certain inductive coil was found to be 0.0025 second. With a resistance of 80 ? added in series, a new time constant of 0.005 second was obtained. Determine the inductance and resistance of the coil. Determine the steady value of the current and the time taken by the current to attain 63.2% of the steady value of the current when the coil alone is connected across a constant voltage of 200 volts.

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