It's time to show the interviewer where your passion comes from, for your career as an electrician. You can answer this question from a more personal perspective to allow the interviewer to get to know you a bit better. However, be sure to tie it all in professionally, at the end of your response.
"I always knew that I wanted to be in the trades. My uncle, who I looked up to a lot as a kid, was an electrician. I would spend time with him a lot and loved the pride he took in his work. My critical thinking skills have always been strong, and thus, I had a natural attraction to the career path."
"Being an electrician is my dream job because it stimulates me mentally while offering the physical component I seek in a trades-related position."