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Alternating Current

Q- A simple AC Circuit contains R=70.0 Ohm and V = Vmax sin ωt

a) If Vt = 0.250 Vmax for the first time at t = 0.0100 s, what is the angular frequency ω of the source?

b) What is the next value of t for which Vt = 0.250 Vmax?

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