4. The requirement of gases for insulation purpose is a) High thermal stability b) High dielectric strength and thermal stability c) High dielectric strength only d) High thermal stability and low temperature condensation. 5. Discharges form according to streamer mechanism is: a) Filamentary b) Diffused c) Circular d) None of above mentioned 6. The mechanism of breakdown in vacuum is due to a) Particle exchange b) Field emission c) Clump formation d) None of above e) All of the above.

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A: Concept , References and Examples: Examples-1Examples-2  Thank you

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Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.