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4.2.1a Positive and negative charge

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Question 33

In a cathode-ray tube, electrons are released from a heated filament and accelerated towards a metal plate called the anode.

Which row in the table correctly describes the process of releasing the electrons from the filament and the relative charge on the anode?

Process of electron releaseCharge of the anode
APhotoelectric effectNegative
BThermionic emissionPositive
CThermionic emissionNegative
DPhotoelectric effectPositive
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

4.2.1a Positive and negative charge Questions

  1. IGCSE
  2. /Physics
  3. /4.2.1a Positive and negative charge

145 exam-style questions on CIE IGCSE Physics 4.2.1a Positive and negative charge. Each one has a worked solution and a mark scheme showing where the marks go.

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