The gas that used in bulb is............?
a) Oxygen b)nitrogen c)hydrogen d)co2
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Answer is b) Nitrogen.
The gas usually argon and/or nitrogen is used in bulbs.
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Why the height of the mercury column is affected by the change in temperature ?
The principle of action of points is used in A. capacitors B. inductors C. resistors D. lightning arrestors
7 Answers GSSO, TNPSC Tamil Nadu Public Service Commission, UPSC,
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