2-27. a sinusoidal voltage source of v(t) 170 cos (2 60t) v is applied to a nonlinear load, resulting in a nonsinusoidal current that is expressed in fourier series form as i(t) 10 cos (2 60t 30 ) 6 cos (4 60t 45 ) 3 cos (8 60t 20 ) a. determine (a) the power absorbed by the load, (b) the power factor of the load, (c) the distortion factor, and (d) the total harmonic distortion of the load current.