Question

Each component in the FFT series can then be represented as A cos (wt) + iB sin (f) where ______________

(a) A = The phase angle of the component

(b) f =  An FFT coefficient

(c) t = temperature

(d) w = Angular frequency of the component

I had been asked this question in unit test.

The origin of the question is The Main Amplifier and Driver Stage topic in section Recording System of Biomedical Instrumentation

Answer 1

The correct answer is (d) w = Angular frequency of the component

Easy explanation: w = Angular frequency of the component is the correct answer. Other all are the incorrect explanation of the variables. A = An FFT coefficient

 f = The phase angle of the component and t = time.