A rod of 2.5cm diameter and 36 cm long connects two sources of heat maintained at 227°C and 127°C. The surrounding air temperature is 27°C and heat transfer coefficient is 10W/ m² °C. Find the heat transfer from the rod if is made of copper ( k= 335 W/m°C) b) Made of steel (k=40 W/m°C)
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ਝਸ਼ਬੱਕਪਨਗਠਧਲਫੱਹਝਵਲਬਂਫਪ ਲਫਣਗਕ
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