Question

Find the value of ω if the frequency is 5Hz?

(a) 3.14 rad/s

(b) 31.4 rad/s

(c) 34 rad/s

(d) 341 rad/s

I had been asked this question in unit test.

Question is from Representation of an Alternating Quantity by a Phasor topic in division Alternating Voltage and Current of Basic Electrical Engineering

Answer 1

Correct option is (b) 31.4 rad/s

The best explanation: The expression for ω is ω=2*π*f.

Substituting the value of f from the question, we get ω=31.4 rad/s.