During their electricians training they will need to become familiar with electrical circuity theory. Luckily, electrical circuity theory is a part of most high school Physics courses. This makes taking at least one physics course during high school an excellent idea for potential electricians.he electrical industry is an exciting and rapidly expanding career that offers steady employment, excellent pay, and rewarding work. Qualified and experienced electricians are highly sought after and the need will continue to increase over the next 5-10 years as more and more tradespeople retire.