engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Electrician and Wireman Power Systems Circuit Breakers
As comparison with air, the dielectric strength of SF6 gas is :
1
10 to 20 times more than the air
2
1 to 2 times more than the air
3
5 to 10 times more than the air
4
2 to 3 times more than the air