How do you convert mechanical power to electric power?

Answer 1

Electrical Power equation: P = I x V (Electrical power = Current x Potential Difference) Hence if one has a Current in Amps (A) and a Potential Difference in Volts (V), these two values multiplied together give the size of the electrical power, P in Watts. 1 Watt is also equivalent to 1 Joule per second. Hence the units Watts maybe replaced by J/s or Js-1. Also, Using Ohms Law V = I x R (Potential difference = Current x Resistance) The electrical power equation maybe re-written: P = I x I x R = I2 x R = I2R (using V = I x R) or P = (V/R) x V = V2 / R (using I = V/R)

Answer 2

we can use alternator to convert mechanical energy into electrical energy

Further Comment

As the above answer indicates, you convert mechanical energy (not power) into electrical energy (not power). Power simply describes the rate at which this energy conversion takes place.

Answer 3

machenical enrgy means when any body done a work but as a elecric energy we cant ganerate any machenical energy but when we give electrical eneregy to any moter that time it rotate with the help of electric energy and this rotation can be use as machenical energy with gears ................

Answer 4

First of all, there is no such thing as 'mechanical' or 'electrical' power. Power is simply a 'rate' -the rate of doing work. In the case of motors, we refer to 'input power' and 'output power', the difference being the rate at which losses (heat transfer, windage, friction, etc.) occur within the motor. In North America, it is common to express the output power in horsepower although, in most other countries, it is expressed in watts. In terms of an 'equation', you could express it as follows: efficiency = (output power) / (input power)