Use the fact that the frequency, in cycles/s (or Hz), is the reciprocal of the period (in
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Use the fact that the frequency, in cycles/s (or Hz), is the reciprocal of the period (in s). The current in a certain alternating-current circuit is given by i = 2.5 sin(120πt). Find the period and the frequency.
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Related Book For 
Basic Technical Mathematics
ISBN: 9780137529896
12th Edition
Authors: Allyn J. Washington, Richard Evans
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