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361) A Spherical Thermocouple Junction Of Diameter 0.706 Mm Is To Be Used For The Measurement Of Temperature Of A Gas Stream. The Convective Heat Transfer Co-efficient On The Bead Surface Is 400 W/m2K. Thermophysical Properties Of Thermocouple Material Are K = 20 W/mK, C = 400 J/kg K And R = 8500 Kg/m3. If The Thermocouple Initially Tot 30°C Is Placed In A Hot Stream Of 300°C, The Time Taken By The Bead To Reach 298°C, Is
2.35 S
4.9 S
14.7 S
29.4 S
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