Which is the wrong statement in following sentences? A device in … - Vidyadip

MCQ

Which is the wrong statement in following sentences? A device in which P and N-type semiconductors are used is more useful then a vacuum type because

A
Power is not necessary to heat the filament
B
It is more stable
C
Very less heat is produced in it
✓
Its efficiency is high due to a high voltage across the junction

✓

Answer

Correct option: D.

Its efficiency is high due to a high voltage across the junction

Its efficiency is high due to a high voltage across the junction

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