415. Find the electric field intensity of transformer oil (εr = 2 approx) with density 1/4π (in 109 units) a) 2.5 b) 3.5 c) 4.5 d) 5.5
415. Find the electric field intensity of transformer oil (εr = 2 approx) with density 1/4π (in 109 units) a) 2.5 b) 3.5 c) 4.5 d) 5.5
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Answer: c
Explanation: D = εE. E = (1/4π)/(2Xεo) = 4.5 X 109 units.