The Oscillating Current in an Electrical Circuit Is $I = 2 \sin ( 60 \pi t ) + \cos ( 120 \pi t ) \text { where } I$

Multiple Choice

The oscillating current in an electrical circuit is $I = 2 \sin ( 60 \pi t ) + \cos ( 120 \pi t ) \text { where } I$ is measured in amperes and t is measured in seconds. Find the average current for the time interval $0 \leq t \leq \frac { 1 } { 120 }$ . Round your answer to three decimal places.

A) $1.637$ amps
B) $0.637$ amps
C) $1.273$ amps
D) $2.546$ amps
E) $2.273$ amps