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Assume that a lamp radiate power P uniformly in all directions. What is the magnitude of electric field strength at a distance r from the lamp?? This is a question from electromagnetic waves physics class 12 Select the correct answer from above options

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I = 1 2 ϵ0ϵ 2 0 I = P AC P C×4πR2 = 1 2 ϵ0ϵ 2 0 ϵ 2 0 = P 2πϵ0R2C ϵ0 = √ P 2πϵ0R2C

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