A motor of a corn mill machine operates on electrical energy of 1.44×105J. If one-quarter of the energy is wasted on sound and heat, determine the efficiency of the machine. By: Sunday|Published on: Jan 24|Categories: Physics WAEC| 0 comments A. 25% B. 36% C. 64% D. 75% Correct Answer: Option D D. 75% Users Also Read These:A machine is used to lift a load of 20 N through a…A machine of velocity ratio 5 is used in lifting a…Write short notes on the following: (i) Stapling…An electric motor is a machine that converts?Write short notes on each of the following office…SEE ALSO A body moving with uniform acceleration has two points(5, 15) and (20, 60) on the velocity-times graph of its motion. Calculate