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4.3 Electric circuits

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Question 58

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 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 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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