Question

Give an specific example and describe the operation of a perpetual motion machine. Will the machine work? Why or why not? Reply to the posts of at least two other students as well as comments on your own post. 13 Use the Everyday Phenomenon Box 11.2 on page 230 of the textbook as an example. Do not post this as your example, however.

Answer 1

Imotor faenerang V The above setup is motor-generator set. We can call this setup as seit running motor- In this setup, a motor is coupled with generator. and output of generator is provided to motor and no external power is supplied to setup after initial motion of motor. we: nin this setup as follow- (1) 1st we run motor by external source. After initial rinot motor to tull load we connect output of generator to motor. . (2) Now we cut off external power supply, and our setup suns torever , ie motor rotater generator Shaft. and power generated in generator runs motor in tinitely. ISVUSWWWWWXXXXXXUNYyxXWGNYU

Will this machine works?? No. This machine will not work. This will violate third law of thermodynamics. For this setup to work, we will need motor and generator of 100% conversion efficienicy, le frictionless devices, no losses anywhere in system. But by the third law of thermodynamics, There will losses always. we cannot convert mechanical energy completely into electrical work. DATEYAT YYYYYYYYYYYYYYYYYYYYYY