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Calculate the value of the time period if the frequency of the signal is .48 sec.

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Calculate the value of the time period if the frequency of the signal is .48 sec.

(a) 2 Hz

(b) 3 Hz

(c) 7 Hz

(d) 9 Hz

I have been asked this question in an internship interview.

This interesting question is from Induction Motors in section Speed Control of Direct Current Motors & Induction Motors of Electric Drives

1 Answer

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The correct answer is (a) 2 Hz

The explanation: The time period is defined as the time after the signal repeats itself. It is expressed in second. T = 1÷F=1÷.48=2 Hz.

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