Question: A resistance R carries a current I = (5.0 A) sin 120t + (7.0 A) sin 240t. (a) What is the rms current? (b) If

A resistance R carries a current I = (5.0 A) sin 120πt + (7.0 A) sin 240πt.

(a) What is the rms current?

(b) If the resistance R is 12Ω, what is the power dissipated in the resistor?

(c) What is the rms voltage across the resistor?


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