A resistance of 40 Ω is connected in parallel with a pure inductance of 0.24 H across a 120 V, 25 Hz supply. Find the current taken by each branch. Determine the line current. Determine the power factor of the parallel circuit.  Determine the combined impedance of the parallel circuit

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter22: Resistive-capacitive Parallel Circuits
Section: Chapter Questions
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  1. A resistance of 40 Ω is connected in parallel with a pure inductance of 0.24 H across a 120 V, 25 Hz supply.
    1. Find the current taken by each branch.
    2. Determine the line current.
    3. Determine the power factor of the parallel circuit. 
    4. Determine the combined impedance of the parallel circuit
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How exactly was the combined impedance found my calculation was 27.43 ohms

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