What is the formula for temperature rise with tubes?
(a) temperature rise with tubes = total loss / dissipating surface*(12.5 + 8.8x)
(b) temperature rise with tubes = total loss * dissipating surface*(12.5 + 8.8x)
(c) temperature rise with tubes = total loss / dissipating surface / (12.5 + 8.8x)
(d) temperature rise with tubes = total loss + dissipating surface*(12.5 + 8.8x)
I had been asked this question in final exam.
I would like to ask this question from Design of Tank in chapter Design of Transformers of Design of Electrical Machines