[Solved] Insulation breakdown may occur at _______ (MCQ)

Insulation breakdown may occur at _______

a) High temperature
b) Low temperature
c) At any temperature
d) Depends on pressure

Answer: a
Explanation: At high temperatures, electrons of insulators get excited and then the electrons can overcome the large energy band gaps between valence and conduction bands. So a large number of electrons travel to the conduction band and they act as conductor i.e. insulation breakdown occurs.