Work, Power and EnergyHard
Question
For which combination of working temperatures the efficiency of Carnot′s engine is highest :-
Options
A.80 K, 60 K
B.100 K, 80 K
C.60 K, 40 K
D.40 K, 20 K
Solution
η = 1 - 
for η to be max. ratio 
should be min.
for η to be max. ratio should be min.Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
Two elastic bodies P and Q having equal masses are moving along the same line with velocities of 16 m/s and 10 m/s respe...A ball ′A′ moving with a speed of 90 ms−1 collides directly with another identical ball ′B′...A spring of spring constant 5 × 103 N/m is stretched initially by 5 cm from the unstretched position. Then the work...The magnetic potential energy stored in a certain inductor is 25 mJ, when the current in the inductor is 60 mA. This ind...An electric motor produces a tension of 4500N in a load lifting cable and rolls it at the rate of 2m/s. The power of the...