we can use alternator to convert mechanical energy into electrical energy
As the above answer indicates, you convert mechanical energy (not power) into electrical energy (not power). Power simply...
In the most general sense, power (measured in watts) is a quantification of the ability of an electric current to do work, such as light a bulb, turn a motor or blare sound from a speaker. For the...
Electric power isn't necessarily "better" than gas, it is simply considered to be cleaner. Electric power has many pros and cons. Here are some examples:
Pros:
Electric "engines" react immediatly,...