In a circuit breaker, ionisation is facilitated by_________________.
A. Increase in field strength.
B. Increase in mean free length.
C. High temperature of the surrounding medium.
D. All of the above.
Answer:A
In a circuit breaker, ionisation is facilitated by_________________.
A. Increase in field strength. B. Increase in mean free length. C. High temperature of the surrounding medium. D. All of the above.