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Recent questions tagged telegram-2003

(chatquestion)...69.A thin vessel of inner radius r and length L is used to boil a liquid. There is a heater coil inside the vessel and it maintains uniform temperature T1. Temperature of surrounding is T2(<T¡). To prevent heat loss, the cylinder is wrapped in insulator of thermal conductivity k and thickness h. Rate of heat loss from the curved surface, is- 2TurkL 2tr k (1) (T-T,) (2) (T,-T,) h.L 2nrkL (3) In(1+h/r) 2tkL (L-L)- (T-T,) (4) In(h/r)

asked May 29, 2020 by balaji.thirumalai

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