A coil of 15 Q resistance and 0.3 H inductance is connected in parallel with a variable capacitor across a 230 V, 50 Hz supply. Calculate the (i) capacitance of the capacitor for resonance, (ii) effective impedance of the circuit, and (iii) current supplied from the mains.

A coil of 15 Q resistance and 0.3 H inductance is connected in parallel with a variable capacitor across a 230 V, 50 Hz supply. Calculate the (i) capacitance of the capacitor for resonance, (ii) effective impedance of the circuit, and (iii) current supplied from the mains.

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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H.W 2
A coil of 15 2 resistance and 0.3 H inductance is connected in parallel with a variable capacitor
across a 230 V, 50 Hz supply. Calculate the (i) capacitance of the capacitor for resonance, (ii)
effective impedance of the circuit, and (iii) current supplied from the mains.

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