An electric iron is designed to operate on 220V mains and contains a heating element of resistance 44Ω.
(i) Calculate the steady current drawn by the iron when it is switched on.
(ii) If the iron is left connected for 15min, determine the electrical energy consumed in kilowatt-hours.
(iii) The same element is accidentally connected to a 110V supply. Compute the current in this case and comment on whether the iron will heat effectively.