10.12 A 10 kW drilling machine is used to drill a bore in a small aluminium block of…
PHYSICS · Subjective · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
10.12 A 10 kW drilling machine is used to drill a bore in a small aluminium block of mass 8.0 kg . How much is the rise in temperature of the block in 2.5 minutes, assuming 50% of power is used up in heating the machine itself or lost to the surroundings. Specific heat of aluminium =0.91Jg−1K−1.