Question

A sinusoidal voltage is expressed as v = 20sin(314.16t + pi/3) V. Its frequency and phase angle,
respectively, are
O A. 314.16 Hz, 60 degree
O B. 60 Hz, 60 degree
O C. 50 Hz, 60 degree
O D. 50 Hz, -60 degree​

Answer 1

Answer:

c

Explanation:

compare this equation with standard one

y= asin(wt+pi/3)

w= omega= 2pi n = 314.16

n= 50Hz

as it is,

phase angle is pi/3= 60°