a) Using a suitable diagram, explain the construction of a semiconductor diode and how it works. Also explain its input-output characteristics.
b) Explain the difference between a diode and a transistor.
c) Explain two applications of:
i. Diode
ii. Transistor
d) Explain the following phenomena:
i. Thermionic Emission
ii. Paramagnetism
iii. Photoelectric effect
iv. Piezoelectric effect
e) Explain the function of the following in electric circuits:
i. Transformer
ii. Fuse
iii. Relay