An ac generator has emf e emsinomegadt - pi4 where em 369, Ask an Expert

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An ac generator has emf E = E_msin(ωdt - Π/4), where Em = 36.9 V and wd = 313 rad/s. The current produced in a connected circuit is i(t) = I sin(ωdt - 3Π/4), where I = 468 mA.

At what time after t = 0 does

(a) the generator emf first reach a maximum and

(b) the current first reach a maximum?

(d) What is the value of the capacitance, inductance, or resistance, as the case may be?

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