Correct option is A
A dielectric gas, also known as an insulating gas, is a gas that does not conduct electricity and is used to prevent electrical discharges in high-voltage applications.
These gases have high dielectric strength and are used to insulate electrical equipment, such as in gas-insulated switchgear and transformers.
Explanation of the Options:
(a) insulating gas: This is correct. Dielectric gases are used for their insulating properties in various electrical applications.
(b) charge gas: This is incorrect. The term "charge gas" does not relate to dielectric properties and is not commonly used in this context.
(c) ionized gas: This is incorrect. Ionized gas conducts electricity and is not used as an insulator. Ionized gases are typically found in plasmas.
(d) low resistivity gas: This is incorrect. A low resistivity gas would conduct electricity, which is the opposite of what a dielectric gas does.
Therefore, the correct answer is (a) insulating gas.
