trixie8370 trixie8370

23-01-2024
Physics

contestada

What are free electrons?
Why do they not leave the metal surface on their own?
How can they be made to leave the metal surface? (State any two ways)

a) Electric field application, Photoelectric effect
b) Positive charge, Magnetic field
c) Coulomb's law, Fusion reaction
d) Electron capture, Gravitational pull

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