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Average power from given voltage and current expressions

This type of question, asked 2 times: 29 Jan 2024, 31 Jan 2024. All 2 questions below, oldest first.

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  1. Question 1

    29 Jan 2024

    94
    In an a.c. circuit, voltage and current are given by: V=100sin⁡(100t)VV = 100\sin(100t)V and I=100sin⁡(100t+π3)mAI = 100\sin\left( 100t +\frac{\pi}{3} \right)mA respectively. The average power dissipated in one cycle is:

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  2. Question 2

    31 Jan 2024

    95
    An AC voltage V=20sin⁡200πtV = 20\sin200\pi t is applied to a series LCR circuit which drives a current I=10sin⁡(200πt+π3)I = 10\sin\left( 200\pi t +\frac{\pi}{3} \right). The average power dissipated is:

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