Phasor's method is used for ……..

Options

A. to obtain high A.C. voltage
B. to obtain high frequency of A.C.
C. to obtain addition of two harmonic functions
D. to obtain multiplication of two harmonic functions

Answer

C

Explanation

Using Phasor.s method, we can find out resultant of given harmonic functions. Here phasors, representing given harmonic function are placed tail to head. Then their resultant is a vector, joining tail of first phasor to the head of last phasor.
Here, (i) Length of resultant phasor gives its amplitude.
(ii) Angle made by resultant phasor with reference line (usually + X-axis) gives phase of resultant phasor and
(iii) Component of resultant phasor either on X-axis or on Y-axis, gives instantaneous value of resultant phasor.