ifos • paper_1 • electrodynamicsifos-2023-subject-03-001
Electrostatic potential — UPSC IFoS 2023 Physics PYQ
Buy PYQ Solution Manual →If the electrostatic potential in spherical polar coordinate is \phi(r) = \phi_0 e^{-r/r_0} where \phi_0 and r_0 are constants, what will be the charge density at a distance r = r_0?
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