Thermionic emission (AQA A-Level Physics): Quizzes

Electrons emitted when metal is heated

It must be heated

Device producing stream of electrons

The cathode

Positive

$\Delta W = eV$

$1.6 \times 10^{-19}$ C

Kinetic energy of electron accelerated across 1 V

$\frac{1}{2}mv^2 = eV$

Electrical potential to kinetic energy