I am assuming by profit you mean the salary / income – that is by doing the work in the given field.

the number of factors will contribute towards that…

– Where do you live (what part of world)?

– What are you passionate about?

– What other soft skill do you have in addition to technical skill (the college will mostly provide you the technical knowledge in the selected field)?

– The market conditions?

– The economic and political conditions?

The software jobs are moving out of US to India and china. Manufacturing is mainly moved to China, lot of shift is happening with globalization.

Mostly, technical skills will get you an entry into the job market and may pave a path for the average income. If you really want to do something big and make big money… you need to be good in soft skills too.

1. electronic engineering!

– that’s always going to be there… and will provide a stable income

2. Computer Engineering!

– this i believe will continue to grow… and you have an opportunity to start you business with relatively small investment

3. Nuclear Medicine Technology!

– I am least familiar with this area… but, I believe there is going to lot of opportunity and it’s not a main stream subject.

People can make lot of money in doing what they love… go with the subject that you enjoy most, and are passionate about it… where you believe you are above average with less effort (an indicator that you have natural inclination for those topics).

Hope this helps.

The other two areas don’t differ by a whole lot, it depends upon the area of specialization you choose in electronic or computer engineering.