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4.3.3 Action and use of circuit components

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Question 32

In a cathode-ray oscilloscope (CRO), a metal filament is heated to release charged particles. Which row correctly identifies these particles and the name of the process by which they are emitted?

A

electrons, thermionic emission

B

electrons, photoelectric emission

C

protons, thermionic emission

D

protons, photoelectric emission

Markscheme

4.3.3 Action and use of circuit components Questions

  1. IGCSE
  2. /Physics
  3. /4.3.3 Action and use of circuit components

67 exam-style questions on CIE IGCSE Physics 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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