Electronics quizzes

How semiconductors, diodes and transistors control electric current to amplify signals and make electronic circuits work.

1 quiz

Electronics: How Sand Learned to Amplify

From the pn junction to transistors, feedback and oscillators: how doped silicon rectifies, regulates, amplifies and keeps time.
50 questions

The whole quiz comes before your apps

BrainTok asks a few questions like these before the apps you choose open, so your screen time turns into learning. For iPhone.