Видео ютуба по тегу Mr Smith’s Physics Online

Semiconductors 1: intrinsic & extrinsic semiconductors (Higher Physics)
Semiconductors 1: intrinsic & extrinsic semiconductors (Higher Physics)
Electricity multiple choice questions (National 5 Physics)
Electricity multiple choice questions (National 5 Physics)
National 5 Physics - Sound waves
National 5 Physics - Sound waves
Semiconductors 2: the p-n junction (Higher Physics)
Semiconductors 2: the p-n junction (Higher Physics)
Help with the relationship sheet (finding the right equation)
Help with the relationship sheet (finding the right equation)