Answered: with a coil of inductance 50 mH and…

with a coil of inductance 50 mH and unknown resistance R across a 120 V, 50 Hz supply. If the circuit has an overall power factor of unity, find (a) the value

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 6RQ: A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating...

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Question

A 30 μF capacitor is connected in parallel with a coil of inductance 50 mH and
unknown resistance R across a 120 V, 50 Hz supply. If the circuit has an overall
power factor of unity, find (a) the value of R, (b) the current in the coil, and (c)
the supply current.

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