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Algebra
Question

If the current and voltage of an electrical device...

If the current and voltage of an electrical device (in the passive reference configuration) are 

\( v ( t ) = 6 \sin ( 100 \pi t ) V \) and \( i ( t ) = 10 \sin ( 100 \pi t ) + 9 \cos ( 100 \pi t ) A \) . Then the average power delivered to the device over a \( 20 \) ms interval (i.e. one period of the current and voltage waveform) (computed to one decimal place) is given by 

Answer

\(\frac{2\pi}{100\pi}s= 0.02s= 20ms\)

Solution
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