The current through the current coil of wattmeter is 2+3cos2(t-30) and voltage across it's pressure coil is 1+4sin(2t-30). what is the reading of the wattmeter?
The current through the current coil of wattmeter is 2+3cos2(t-30) and voltage across it's pressure coil is 1+4sin(2t-30). what is the reading of the wattmeter?
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter9: Measuring Instruments
Section: Chapter Questions
Problem 14RQ: 14. What is the major difference between a wattmeter and a d’Arsonval meter?
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The current through the current coil of wattmeter is 2+3cos2(t-30) and voltage across it's pressure coil is 1+4sin(2t-30). what is the reading of the wattmeter?
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