Question

An electric iron a rating of 750 W, 220 V. 

(i) Calculate current passing through it and 

(ii) Its resistance when in use.

Answer 1

P = VI 

I = \(\frac{P}{V}\) 

Ohm’s law V = IR

(i) The amount of current passing

I = 3.4A 

(ii) Resistance 

R = 64.7Ω