Which is the wrong statement in following sentence? A device in which P and N type semiconductors are used is more useful then a cacuum tube because-A. power is not necessary to heat the filamentB. it is more stableC. very less heat is producted in itD. its efficiency is high due to a high voltage drop across the junction.

Which is the wrong statement in following sentence? A device in which

1.	Which is the wrong statement in following sentence? A device in which P and N type semiconductors are used is more useful then a cacuum tube because-A. power is not necessary to heat the filamentB. it is more stableC. very less heat is producted in itD. its efficiency is high due to a high voltage drop across the junction.
Answer» Correct Answer - D

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