Your user password is not the same as the root password, at least, not by default. The install will give your user account administrative rights (like doing sudo commands, and installing software), but it doesn't make your user account the "root" account. The root account is issued a randomly generated password, that is to ensure that a hacker cannot easily login remotely to the root account by cracking an easy password.
In order to do a su command, you need to first issue a sudo, in other words, write this in the terminal:
i am a student of diploma in electronics and telecomm
can anyone suggest me projects related to the below domains:-
electrical and electronics