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An electric motor uses 670 kJ of electrical energy to generate 595 kJ of mechanical kinetic energy. What is the efficiency of the motor?

Full example, please...
Thank you!

Respuesta :

  • Used energy=595KJ
  • Total energy=670KJ

Efficiency:-

[tex]\\ \tt\longmapsto \dfrac{595}{\cancel{670}}\times \cancel{100}[/tex]

[tex]\\ \tt\longmapsto \dfrac{595}{67}\times 10[/tex]

[tex]\\ \tt\longmapsto 8.88(10)[/tex]

[tex]\\ \tt\longmapsto 88.8\%[/tex]

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