On 19/03/2018 19:55, Harry Bloomfield wrote:
on 19/03/2018, John Bryan supposed :
This is due to induction heating not resistive heating by the load
supplied.

Rubbish, there will be no inductive heating effect. The current in live
will match that in neutral and thus negate any induction. The only
heating effect in a coiled lead on ac is that of resistive heating,
which becomes a problem on a coiled up lead, because the heat produced
is unable to escape.

Could not have put it better!