(Solved): (a) An electrical appliance is a pure resistor and is rated as: \( 120 \mathr ...

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(a) An electrical appliance is a pure resistor and is rated as: \( 120 \mathrm{~V}, 8 \mathrm{~A}, 60 \mathrm{~Hz} \). Determine: a) Peak voltage and current, b) Time between voltage zeros, c) Radian frequency, d) Resistance, e) Power dissipated.? Strategy: We will use the definitions resulting from figure \( 4.1 \) to determine items a), b), and c), and then apply the methods of chapter 1 to determine items d) and e). (b) An inductance of \( 35 \mathrm{mH} \) has a winding resistance of \( 7.2 \Omega \) that appears in series with the inductance. It is connected across a \( 240 \mathrm{~V}, 60 \mathrm{~Hz} \) supply. Determine: (c) a) Impedance, b) Current drawn. Strategy: Impedance is made up of resistance (real part) and inductive reactance (imaginary part). To get inductive reactance we need to know the frequency in rad/s and we note that we are given the frequency in \( \mathrm{Hz} \). Once impedance has been determined the current is obtained from Ohm's Law