A 220- $\varOmega$ Resistor Is Connected Across an Ac Voltage Source V =

question 78

Multiple Choice

A 220- $\varOmega$ resistor is connected across an ac voltage source V = (150 V) sin [2 $\pi$ (60 Hz) t]. What is the average power delivered to this circuit?

• A)51 W
• B)110 W
• C)280 W
• D)320 W
• E)550 W

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