A-Level
EDEXCEL
Physics
January 2026
1 Marks
QP-202601-Physics-U4 · Question 6
Question (excerpt):
DO NOT WRITE IN THIS 6 A vacuum tube is a type of diode. A metal plate in the vacuum tube is heated to release electrons, as shown. heater metal plate vacuum electrode +V 0 V A potential difference (p…
DO NOT WRITE IN THIS 6 A vacuum tube is a type of diode. A metal plate in the vacuum tube is heated to release electrons, as shown. heater metal plate vacuum electrode +V 0 V A potential difference (p…
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