8.40 An iron-cored choke coil has an equivalent resistance of 5 2. It draws 10 A when the applied voltage is 240 V, 50 Hz. Its inductance and power factor respectively are (a) 7.5 mH and 0.1 (lag) (b) 747 mH and 0.1 (lag) (c) 74.7 mH and 0.208 (lag) (d) 7.5 mH and 0.208 (lag)

8.40 An iron-cored choke coil has an equivalent resistance of 5 2. It draws 10 A when the applied voltage is 240 V, 50 Hz. Its inductance and power factor respectively are (a) 7.5 mH and 0.1 (lag) (b) 747 mH and 0.1 (lag) (c) 74.7 mH and 0.208 (lag) (d) 7.5 mH and 0.208 (lag)

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 7RQ: An RC series circuit is connected to a 120-V, 60-Hz power source. The resistor is 25 and has a...

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apers
8.40 An iron-cored choke coil has an equivalent
resistance of 5 2. It draws 10 A when the applied
voltage is 240 V, 50 Hz. Its inductance and power
factor respectively are
(a) 7.5 mH and 0.1 (lag)
(b) 747 mH and 0.1 (lag)
(c) 74.7 mH and 0.208 (lag)
(d) 7.5 mH and 0.208 (lag)

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