Question

An electric motor provides 900 J of useful output. The efficiency of the motor is 60%. How much electrical energy is supplied to the motor? 540 J 5400 J 15 J 1500 J

Answer 1

Answer:

Hope this helps you!!!

Explanation:

In our example input electrical power of the motor is 0.22 A x 6 V = 1.32 W, output mechanical power is 1000 rpm x 2 x 3.14 x 0.00126 N•m /60 = 0.132 W. Motor torque changes with the speed. At no load you have maximum speed and zero torqueIn our example input electrical power of the motor is 0.22 A x 6 V = 1.32 W, output mechanical power is 1000 rpm x 2 x 3.14 x 0.00126 N•m /60 = 0.132 W. Motor torque changes with the speed. At no load you have maximum speed and zero torque