In equipments filled with liquid dielectric, heat is transferred mainly by

Which theory explains the mechanism for breakdown under different conditions?

A. Townsend theory

B. Streamer theory

C. Clump theory

D. Only (a) and (b)

Inelastic collisions are those in which internal changes in energy take place within an atom or a molecule at the expenses of total kinetic energy of the colliding particle. Suitable example for inelastic collisions is/are

A. Ionization

B. Attachment

C. Excitation

D. All of these

Druyesteynian distribution applies when the ion energy is much

A. Greater than the thermal energy

B. Lesser than the thermal energy

C. Equal to the thermal energy

D. None of these

A gas in normal state is almost a perfect

A. Conductor

B. Insulator

C. Semi-conductor

D. Dielectric

The Townsend mechanism explains the phenomenon of breakdown

A. Only at low pressure

B. Only at high pressure

C. Only at very high pressure

D. Only bat very low pressure