A coil consists of a resistance of 100 and an inductance of 200 mH. If an alternating voltage, v, given by v = 200 sin 500t volts is applied across the coil, calculate (a) the circuit impedance, (b) the current flowing, (c) the p.d. across the resistance, (d) the p.d. across the inductance and (e) the phase angle between voltage and current.