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Physics · PYQ NEET UG 2025
हिन्दीA 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 :
Correct answer · Option C
non-zero everywhere with maximum at the imaginary cylindrical surface connecting peripheries of the plates
Explanation
By Ampere-Maxwell law, magnetic field \( B \) inside and outside the plates due to uniform displacement current is non-zero everywhere, increasing linearly inside up to the edge and decreasing inversely as \( 1/r \) outside, with maximum at the periphery.
