How is the initiation of electric arc at the instant of contact separation caused?

Name: How is the initiation of electric arc at the instant of contact separation caused?
Brand: Quizplus
Rating: 4.9 (54 reviews)

Question

Quizplus · Accepted Answer

The initiation of an electric arc at the instant of contact separation is caused by both thermionic emission of electrons, where electrons are emitted due to high temperatures, and field emission of electrons, where electrons are emitted under the influence of a strong electric field.

How Is the Initiation of Electric Arc at the Instant