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The value of unit step function at t=5 sec is ________

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The value of unit step function at t=5 sec is ________

(a) 0

(b) 1

(c) -1

(d) 2

I had been asked this question in a national level competition.

The above asked question is from Electric Motors topic in portion Braking of Electric Motors of Electric Drives

1 Answer

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Right answer is (b) 1

Explanation: Unit step function is discontinuous at t=0. The value of the unit step function is 1 for t>0 and zero for t<0. It is right handed and bounded signal.

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