O-LevelPhysicsElectricity5054/11 · Oct/Nov 2014 · Q331 Mark

An electric current flows through a thin metal filament in a vacuum. The filament emits particles. Which particle is emitted and what is its charge?

Aparticle: electron, charge: negative

Bparticle: proton, charge: negative

Cparticle: electron, charge: positive

Dparticle: proton, charge: positive

✓ Correct answer

A: particle: electron, charge: negative

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Topic: Electricity, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2014 Paper 1 Variant 1, question 33.

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