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Calculate the value of the frequency if the time period of the signal is 99 sec.

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in Electric Drives by (99.8k points)
Calculate the value of the frequency if the time period of the signal is 99 sec.

(a) 0.08 Hz

(b) 0.02 Hz

(c) 0.01 Hz

(d) 0.04 Hz

I had been asked this question during a job interview.

I'm obligated to ask this question of Modified Speed Torque Characteristics of DC Series Motors topic in portion Characteristics of DC & AC Motors of Electric Drives

1 Answer

+1 vote
by (1.2m points)
Right option is (c) 0.01 Hz

To explain I would say: The frequency is defined as the number of oscillations per second. It is reciprocal of the time period. It is expressed in Hz. F = 1÷T=1÷99=.01 Hz.

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