Which of the following inert gas is used with DC power supply only?

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Q. Which of the following inert gas is used with DC power supply only?

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✅ Correct Answer: (C) co2

Explanation: co2 is used only in dc power supply. it cannot be used in ac power supply. argon and helium can be used with ac supply.

co2 is used only in dc power supply. it cannot be used in ac power supply. argon and helium can be used with ac supply.

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