Id=ϵ0dtdϕe=ϵ0dtd(EAcos0∘)Id=ϵ0AdtdE∵E=ϵ0σ;Id=ϵ0Adtd(ϵ0σ)⇒Id=A(dtdσ)= constant Also B due to Id is max m at surface of imaginary cylinder 
NEET UG 2025 — Physics Electromagnetism
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 :
Held on 30 Apr 2025 · Verified 9 Jul 2026.
zero at all places
constant between the plates and zero outside the plates
non-zero everywhere with maximum at the imaginary cylindrical surface connecting peripheries of the plates
zero between the plates and non-zero outside
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