Physics · Electrical Switchgear
The compressed air pressure maintained in air-blast circuit breakers is typically of the order of:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 120 to 30 kg/cm2✓
- 22 to 3 kg/cm2
- 3less than 1 kg/cm2
- 4200 to 300 kg/cm2
Correct answer
20 to 30 kg/cm2
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