Physics

Problem

An ideal coil (a resistance in series with an inductance) is connected to a

120\,\text{V}

(rms),

60\,\text{Hz}

AC source. The rms current is

4.0\,\text{A}

and the current lags the voltage by

30^{\circ}

. Calculate: a. (i) the resistance of the coil b. (ii) the inductance of the coil