The most common types of electricians are domestic electricians, Installation electricians and maintenance electricians.
You can gain electrician experience by working with or assisting a professional electrician. Or you can simply start fixing small issues at home and then your experience and increase over time.
Electricians are usually those who are technically trained to work with wiring and electrical systems. They are professionally trained to install new electrical systems and maintain the old ones.
Math is a crucial part of electricians’ work. Without math, they cannot calculate the wirings, are unable to fit new systems and maintain & repair old infrastructure.