Q. jCorona usually occurs when the electrostatic stress in air around the conductor exceeds (Solved)
1. 6.6 kV (r.m.s. value)/cm
2. 11 kV (r.m.s. value)/cm
3. 22 kV (maximum value)/cm
4. 30 kV (maximum value)/cm
- d. 30 kV (maximum value)/cm
1. 6.6 kV (r.m.s. value)/cm
2. 11 kV (r.m.s. value)/cm
3. 22 kV (maximum value)/cm
4. 30 kV (maximum value)/cm