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In: Electrical Engineering

A sinusoidal voltage is given by v(t)=7 cos(172t+28o) V. What is the first time in ms...

A sinusoidal voltage is given by v(t)=7 cos(172t+28o) V. What is the first time in ms for t>0 for which v(t) has a zero crossing?

Solutions

Expert Solution

sin(172t+90)=cos(172t)

sin(172t+90+280)=cos(172t+280)

Manojponduru answered 1 week ago
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