Math homework help

Question

Write an equation of an alternating voltage that has a peak value of 155 V, a frequency of 60Hz and a phase angle of 22°

Answer 1

This time-varying voltage from the source is described by

 

V(t) = V_max  Sin(angular frequency*time + phase angle)

       = V_max  Sin(2*pi*freuency*time + phase angle)

       = 155V Sin(2*pi*60Hz * time + 22 *pi/180)

 

where V_max is the maximum output voltage of the source