Efficiency

[L Plate]

bit stuck again , what formula am I am going to use on this .. ANY help please ..

the efficiency of a motor that uses 1500 W to produce 1350w of work would be

80/85/90/95/

thanks again

 

[NozSpark]

Efficiency = Output/input

= 1350/1500

= 0.9

HTH

 

[L Plate]

Efficiency = Output/input= 1350/1500

= 0.9

HTH

I cant work it out , efficiency is output/input X 100 ...

the answer according to the practice paper is 90%

 

[NozSpark]

Sorry, forgot to make it a %age

0.9 is 90%