Question

If an iron takes 660 kJ of energy from the mains supply after being left on for 10 minutes, what is the power rating of the iron?

In watts

Answer 1

$\huge\bold\red{GIVEN:-}$

W=600KJ.

T=10min.

P=?

$p = \frac{w}{t} \\ p = \frac{600}{10} \\ p = 60w$

$\large\bold\green{the \:power \:rating \: of \: iron \:=20w. }$

$\large\bold\purple{Thanks!!}$