Question $1,(30$ marks$)$

Water is heated closed system, with a supply of electric work for $5$ minutes with a current of $2\mathrm{.}8$ A

and $250$ v $,$ heat is given out of the system at $250$ KJ while heat is also supplied to the system at $140$

kJ $.$ If the total energy generated is $600$ kJ $.$

Calculate the:

$($i$)$ The Electrical work,

$($ii$)$ The work of the shaft.