. A coil is to be wound with Q-factor of 8. A lamp rated 120 V, 480 W is connected in series with the coil and connected across 230 V, 60 Hz source. What is the impedance of the coil if the voltage across the lamp is maintained at 120 V. A. 35.2482.9° n B. 27.5472.4° Č.) 45.5482.9° n D. 40.5472.4° LAo inductive coil houing

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter32: Three-phase Motors
Section: Chapter Questions
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D. 6
80. A coil is to be wound with Q-factor of 8. A lamp rated 120 V, 480 W is connected in series with the coil
and connected across 230 V, 60 Hz source. What is the impedance of the coil if the voltage across the
lamp is maintained at 120 V.
A. 35.2/82.9° 0
B. 27.5472.4° a
Č.) 45.5282
2.9°
D. 40.5472.4° Q
81. An inductive coil having a resistance of 25 ohms and inductance of 0 2 H je connected in parallel with a
Transcribed Image Text:B. D. 6 80. A coil is to be wound with Q-factor of 8. A lamp rated 120 V, 480 W is connected in series with the coil and connected across 230 V, 60 Hz source. What is the impedance of the coil if the voltage across the lamp is maintained at 120 V. A. 35.2/82.9° 0 B. 27.5472.4° a Č.) 45.5282 2.9° D. 40.5472.4° Q 81. An inductive coil having a resistance of 25 ohms and inductance of 0 2 H je connected in parallel with a
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