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For every 100 J of energy supplied to a motor, 80 J of useful

work is done. Calculate the efficiency of the motor. Give your
answer as a percentage.

User Juandesant
by
6.8k points

1 Answer

1 vote

Answer:

80%

Step-by-step explanation:

efficiency = (useful work out / total energy in) x 100

=
(80)/(100) x 100

= 80%

User Suku
by
6.7k points