E = 110 cos (Pi t) ?
So if E is volts, and t is time, in seconds, how many seconds does it take for the circuit, who's equation is represented by E = 110 cos (Pi t) , to make one cycle?
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So if E is volts, and t is time, in seconds, how many seconds does it take for the circuit, who's equation is represented by E = 110 cos (Pi t) , to make one cycle?
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Verified answer
E = 110 cos (Pi t)
This is in a form of
E = A cos (B t)
Amplitutde = 110
B = π
Period = 2π/B where B = π
Period = 2π/π = 2
It completes a cycle in 2 seconds.
This is a simple cos equation.
b = pi
period = 2pi/b = 2pi/pi = 2
=> 2 seconds