A unit step function is used to represent the closing a switch in a constant voltage system.

0.0314 sin 314 t + 0.0157 sin 1570 t

0.0314 cos 314 t + 0.0157 cos 1570 t

0.0314 cos 314 t + 0.0314 cos 1570 t

0.0157 cos 314 t + 0.0157 cos 1570 t

A unit step function is used to represent the closing a switch in a co

1.	A unit step function is used to represent the closing a switch in a constant voltage system.
A.	0.0314 cos 314 t + 0.0157 cos 1570 t
B.	0.0314 sin 314 t + 0.0157 sin 1570 t
C.	0.0314 cos 314 t + 0.0314 cos 1570 t
D.	0.0157 cos 314 t + 0.0157 cos 1570 t
Answer» B. 0.0314 sin 314 t + 0.0157 sin 1570 t