2007-11-15 05:05:07 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Engineering
if i had a car with a generator that is powerd by it being turned and they where on the axles of a car would it work
2007-11-15 05:07:05 · update #1
if i had a car with a generator that is powerd by it being turned and they where on the axles of a car would it work
i am doing a science project on this and need more ideas also
2007-11-15 05:08:16 · update #2
Let's see if I understand the picture: the generator drives the motor, and the motor drives the generator.
In more detail, the generator pushes power into wires with losses due to ohmic heating. The wires drive a motor where the coils are subject to ohmic heating, there's friction, and there are other losses. The motor drives a gear train with friction and other losses. Most of the energy goes into pushing the car forward, but some of the energy goes back into the generator which also has friction and other losses.
Only a fraction of the power that left the generator would ever get back to it - once it got started somehow, the system would grind to a halt within seconds.
2007-11-15 06:28:31 · answer #1 · answered by Tom V 6 · 0⤊ 0⤋
The generator could never produce enough power to maintain the speed of the motor turning. Perpetual motion, although very appealing, is very strongly believed to be impossible. The US patent office has a policy of not even considering issuing a patent if the inventor claims that the device produces perpetual motion.
2007-11-15 05:24:01 · answer #2 · answered by Tim C 7 · 0⤊ 0⤋
If you just hook a generator to an electric motor shaft, and use the generator to power the motor, that does not work either. Moving a car in addition to spinning the motor requires even more energy. It would work but only as long as it was headed down hill. Sorry.
2007-11-15 05:29:13 · answer #3 · answered by semdot 4 · 0⤊ 0⤋
no it will not work. the laws of thermodynamics state that there is no perfect energy transfer. losses will occur, therefore, you must put energy into driving the generator to be able to support the load created by the wheels. it might be more efficient ...i.e. hybrid vehicles......but it won't be perpetual motion.
2007-11-15 05:56:16 · answer #4 · answered by ELEcTrIc_HeD 3 · 0⤊ 0⤋
for a while - but friction and energy loss in transference make any perpertual machine unworkable- even using supercoolants to hover engines couldnt drive anything without losing power
2007-11-15 05:09:30 · answer #5 · answered by Anonymous · 1⤊ 0⤋