How much current will a heating device draw from a 180 V source, if the resistance of the geyser is 100 Ω?
Given, V = 180 V (voltage of the source) and R = 100 Ω (Resistance of the geyser)
From Ohm's law, we know that V = IR
In the question, V=180 V and R=100 Ω
Hence the heating device draws a current of 1.8A.