Two resistors of 10Ω and 20Ω are connected in parallel across a 220V mains supply for 10min.
(i) Show that the heat produced in each resistor is inversely proportional to its resistance when both are connected in parallel to the same supply.
(ii) Calculate the heat produced in each resistor during the given time.
(iii) Determine the ratio of the heat produced in the 10Ω resistor to that in the 20Ω resistor and comment on your result.