Solved UPSC CDS/OTA Question
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Q · Current ElectricityMedium · 45s
The dielectric breakdown of air occurs at approximately: Option: 22
TopicCurrent Electricity
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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At this field strength, air becomes conductive and allows spark discharge.
22
Final Answer: Option B — 3 × 10⁶ V/m
22