A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to dis

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A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is :NEET 2025

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​ I d ​ = ϵ 0 ​ d t d ϕ e ​ ​ = ϵ 0 ​ d t d ​ ( E A cos 0 ∘ ) I d ​ = ϵ 0 ​ A d t d E ​ ∵ E = ϵ 0 ​ σ ​ ; I d ​ = ϵ 0 ​ A d t d ​ ( ϵ 0 ​ σ ​ ) ⇒ I d ​ = A ( d t d σ ​ ) = constant ​ Also B due to I d ​ is max m at surface of imaginary cylinder

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