Question

An electron iron is rated at $230V,750W$ . Calculate
(i) the maximum current, and
(ii) the number of electricity it would use in $30$ minutes.

Answer 1

a) The maximum current is given as

$P=V\times i$

$i=\frac{750}{230}$

So the maximum current is 3.26A

b) Electric current consumed is given as

$E=P\times t$

The time given is$0.5hr$. So the electric power consumed is $0.375kWh$