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

question 35

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

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Definitions:

Promissory Estoppel

A legal principle that prevents a promisor from arguing that an underlying promise offered should not be legally upheld if the promisee has relied on that promise to their detriment.

Unilateral Contract

A type of contract in which only one party makes a promise to perform in exchange for an act by the other party.

Promissory Estoppel

A legal principle that prevents a party from retracting a promise when the other party has reasonably relied on that promise to their detriment.

Consideration

Something of value that is promised, given, or received in a contract to make it legally binding.