Insulation breakdown may occur at ........? - Vidyadip

MCQ

Insulation breakdown may occur at $........$?

✓
High temperature
B
Low temperature
C
At any temperature
D
Depends on pressure

✓

Answer

Correct option: A.

High temperature

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.

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