Physics - heatersWatch
An electric heater consists of a large resistor resistance R, connected across the AC mains supply. The resistor is replaced by a coil which has reisistance R and inductance L. Explain with the aid of a phasor diagram whether the new heater will emit the same power.
as a conductor, there will be a phase difference (the phasor of I will be at right angles to the phasor of V)
This means that power (=IV) will be different in the two cases