An ac generator has emf ε = εmsin⁡(ωdt − π/4), where εm = 42.0 V and ωd = 346 rad/s. The current produced in a connected circuit is i(t) = Isin⁡(ωdt − 3π/4), where I = 532 mA. At what time after t = 0 does (a) the generator emf first reach 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? (a) Number Units (b) Number Units (c) (d) Number Units

An ac generator has emf ε = εmsin⁡(ωdt − π/4), where εm = 42.0 V and ωd = 346 rad/s. The current produced in a connected circuit is i(t) = Isin⁡(ωdt − 3π/4), where I = 532 mA. At what time after t = 0 does (a) the generator emf first reach 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? (a) Number Units (b) Number Units (c) (d) Number Units

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An ac generator has emf ε = ε m sin ( ω d t π / 4 ) , where ε m = 42.0 V and ω d = 346 r a d / s . The current produced in a connected circuit is i ( t ) = 1 sin ( ω d t 3 π / 4 ) , where I = 532 m A . At what time after t = 0 does (a) the generator emf first reach 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? (a) Number i Units (b) Number i Units (c) (d) Number i Units

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