Question

What is the r.m.s. value of the current for A.C. current I = 100cos(200t + 45°) A. choose the correct option from the given options.
(A) 50√5 A
(B) 100 A
(C) 100√2 A
(D) Zero

Answer 1

(B) 100 A is the correct answer.

v(t) = VM sin (ωt + Φ) or v(t) = VM cos (ωt + Φ) Instantaneous value of the voltage in which VM is Maximum or peak value of the voltage, in volts (V), T is Period and the time taken for one cycle, in seconds and F is Frequency – the number of periods in 1 second, in Hz (Hertz) or 1/s. f = 1/T.

Answer 2

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☸ Required Answer is ⬇ ⬇⬇


⭕ B). 100 A


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