A 50 cycle alternating current has a maximum instantaneous value of 42.42 amp. It crosses the zero axis in a positive direction when time is zero. Determine a) time when the current first reaches a value 30.0 amp; b) time when current after having gone through its maximum positive value, reaches a value of 36.7 amp; e) value of current when the time is 1/120 sec; d) value of time when current first reaches a negative value of 21.21 amp.

A 50 cycle alternating current has a maximum instantaneous value of 42.42 amp. It crosses the zero axis in a positive direction when time is zero. Determine a) time when the current first reaches a value 30.0 amp; b) time when current after having gone through its maximum positive value, reaches a value of 36.7 amp; e) value of current when the time is 1/120 sec; d) value of time when current first reaches a negative value of 21.21 amp.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter18: Resistive-inductive Parallel Circuits

Section: Chapter Questions

Problem 1PA: Incandescent lighting of 500 W is connected in parallel with an inductive load. A clamp-on ammeter...

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