which is a better carrier option electrical or automobile field

It depends on your own flair and the kind of career you would want for yourself. It also depdneds upo nwhether you want to make a career as an Engineer or switch to other field later ( such as opting for MBA or go in the Marketing field). Automobile field is more focused than electrical field.

as both are very different ..it depends on your interest...as per as scope is concerned than automobile is fast growing sector.