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Reported Question / Answer
Q.) A mercury arc rectifier works on the principle of
1)
directional movement of electrons
2)
ionization by collision
3)
none of the above.
4)
release of electrons by thermal excitation
5)
NULL
Answer :
2
Thank you for reporting wrong Question / Answer / Options
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Message / Correct Answer / Suggestion
Human Verification : Answer 2 + 3 = ?
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