Hi Saif - Thanks for reaching out! You can search for all symbols on the top left panel. Alternatively if you look on the bottom left corner you can click on "More Shapes" and search for more precise shapes and symbols. Thanks for using Lucidchart!

There are very few electrical shapes in the library. Am I missing something?

Or do we have to make our own shapes for electrical circuit diagrams?

Hello Darren

I just answered your question here. Please let me know if you have any other questions!