Question

An electric lamp of 100Ω, a toaster of resistance 50Ω, and a water filter of resistance 500Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as much current as all three appliances, and what is the current through it?

Answer 1

Since the electric iron connected to the same source that takes as much current as all the three appliances. So

Resistance of the electric iron=125/4Ω=31.25Ω

Current through the electric iron​=7.04A