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a) A- Tungsten target.
B - Electron beam OR Cathode rays
b) When a current flows through the filament in the cathode, the cathode is heated up and electrons are produced by thermionic emission
c) i) Most of the kinetic energy of the electrons is converted to heat the target.
ii) - Anode is made of good conductor of heat to ensure efficient dissipation of heat.
- Presence of cooling fins.
- Circulation of oil through the channel in the copper block.
d) i) So that electrons do not lose some of their energy through collisions with air molecules.
(ii) To focus the electrons beam onto the target.
Kavungya answered the question on October 30, 2019 at 13:14
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