A steel drill making 180 rpm is used to drill a hole in a block of steel. The mass of steel block and the drill is 180 gm each. The entire mechanical work is used up in producing heat such that the rate of rise of temperature of the system is 0.5 °C/sec. If τ is the couple required to drive the drill then, find its value in SI units.
(C steel = 0.10 cal/gm–°C, J = 4.186)
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(4)
P = τ W = 
= (2m) s 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied…
of water at its boiling point absorbs 540 calories of heat to become steam with a volume of .If t…
Two identical containers A and B with frictionless pistons contain the same ideal gas at the same t…
A closed hollow insulated cylinder is filled with gas at and also contains an insulated piston of …
A mono atomic gas is supplied the heat Q very slowly keeping the pressure constant. The work done b…
A gas mixture consists of 2 moles of oxygen and 4 moles argon at temperature T. Neglecting all vibr…