Thank you for posting your question here. You just provide a situation, I assume below are the questions:
1. What is the current in the heating element?
2.What is the resistance of the dryer's heating element at its operating temperature?
Below are the answers:
1. P = V∙I
I = P/V = 4100 W / 240 V = 17.08 A
2. Ohm's law:
V = R∙I
R = V/I = 240 V / 17.083 A = 14.05 Ω
