Q. In a circuit breaker, ionisation is facilitated by_________________. (Solved)
1. Increase in field strength.
2. Increase in mean free length.
3. High temperature of the surrounding medium.
4. All of the above.
- d. All of the above.
1. Increase in field strength.
2. Increase in mean free length.
3. High temperature of the surrounding medium.
4. All of the above.