Question

Air becomes conducting when the electric field strength in a region exceeds 3 x V/m. If a spark jumps between a charged object and a grounded object when the two objects are 10 cm apart, what is the potential difference between the two objects? If a lightning strike is 4 x m long, what is the potential difference which causes this lighting strike.

Answer 1

In this gurtian we are talking about dielutric breakdoun of air, electrane get diassociated & the gas secomen a plasma efield gets to be a wrtain strength we know delta V = 4 times m her, the voltage that they ful is gnstant Across then. Closet paint or disagree delta times so E = deltaV/dletaX thes yous than dar thres hold, a spark.happens of E is contact above now E leftarrow delta C/deltaX delta times liftarrow delta/E WELL DeltaV/E = (4m)/(3vm) = 1033m deltaV/E = 1033m .0133mm now V = delta X.d .0133X.01m 1.33X10^ber4kn potential difpieres b/w chasyed l grounded objut