An ac generator has emf m sin(dt 4), where m 30 0 V and d 350 rad s The current produced in a connected circuit is i(t) I sin(t 3 4), where I 620 mA At what time after t 0 does (a) The generator emf first reaches a maximum (b) The current first reach a maximum (c) The circuit contains a single elem...

THINK Our circuit consists of an ac generator that produces an alternating current as well as a load ...

An ac generator has emf & = &m sin(dt - /4), where &m = 30.0 V and

Question:

An ac generator has emf & = &m sin(ωdt - π/4), where &m = 30.0 V and ωd = 350 rad/s. The current produced in a connected circuit is i(t) = I sin(ωt 3π/4), where I = 620 mA. At what time after t = 0 does
(a) The generator emf first reaches a maximum
(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? Justify your answer.
(d) What is the value of the capacitance, inductance, or resistance, as the case may be?