An ac generator has emf E = Emsin(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?
(c) The circuit contains a single element other than the generator. Is it a capacitor, an inductor, or a resistor?
(d) What is the value of the capacitance, inductance, or resistance, as the case may be?