Question: For an alternating-current circuit in which the voltage e is given by e = E cos(t + ), sketch two cycles of the voltage as

For an alternating-current circuit in which the voltage e is given by e = E cos(ωt + ∅), sketch two cycles of the voltage as a function of time for the given values.

E = 80 mV, ω = 377 rad s, ∅ = π/2

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