If you want to begin with the basics then I highly recommend Khan Academy, starting with "Electric charge, field, and potential" [0], then "Circuits" [1], followed by "Electrical engineering" [2].

[0]: https://www.khanacademy.org/science/physics/electric-charge-...

[1]: https://www.khanacademy.org/science/physics/circuits-topic

[2]: https://www.khanacademy.org/science/electrical-engineering