Hello,
In my opinion you dont have to be very good in physics and maths but all you needed is interest in the stream.

Its not about whether you are good or bad, some will crack the logics very fast and some require little more time.

But if you have the interest and curiosity in the electrical field surely you could be a good electrical engineer.

You just have to be good in understanding things. Thats it. For me Engineering is the easiest things for those who believe in studying practical things. And Electrical Engineering is one of them.

BUT to crack test and take admission in some good college and universities you need to be OUTSTANDING in Physics and Maths.

I hope this would help you. For further queries please feel free to write me down in the comment box.