Two resistors of 6Ω and 12Ω are connected (a) in series and (b) in parallel across a 18V battery. The circuit is allowed to run for 10min.
(i) For each arrangement, calculate the equivalent resistance.
(ii) For each arrangement, calculate the total current drawn from the battery.
(iii) For each arrangement, calculate the total power converted into heat.
(iv) Hence, compute the heat produced in the given time for each arrangement and state which arrangement converts more electrical energy into heat.