SOLUTION: The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period.

Algebra ->  Trigonometry-basics -> SOLUTION: The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period.      Log On


   



Question 1041982: The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The voltage E in an electrical circuit is given by E = 7.6 cos 140πt, where t is time measured in seconds. Find the period.
-----
P = (2pi)/b
-----
Period = (2pi)/(140pi) = 1/70 of a second
--------------
Cheers,
Stan H.
-----------