The heat dissipating capability of transformers of ratings higher than 30 kVA in
increased by providing which of the following ?
(a) Corrugations
(b) Fins
(c) Tubes
(d) Radiator tanks
(e) All of the above
increased by providing which of the following ?
(a) Corrugations
(b) Fins
(c) Tubes
(d) Radiator tanks
(e) All of the above