i want to know is it possible to generate usefull power by
coupling generator with motor & supply gives to motor by
battery source then generator generates power. remove the
battery source given to the motor & feed the supply from
some of the generated power supply to the motor & motor
runs continously. generator generate power contnously.is it
possible ?

Answer Posted / suresh5254

It is not possible.........to do so either motor or
alternator efficiency should be more than 100% which is not
possible.....
Ex.. let motor i/p power= P1
o/p power= p2
generator i/p power= q1
o/p power= q2
here p2 cannot be more than p1 ,lly q2 cannot be more than
q1 because of copper,friction and windage losses......so
obviously q2 lesser than p1....so motor cannot run

Note: Energy neither be created nor destroyed...only it can
be transferred from one form 2 other....

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