MGVCL Exam Paper (30-07-2021 Shift 3)
દ્રશ્ય' શબ્દનો વિરુદ્ધાર્થ શબ્દ આપેલો વિકલ્પોમાંથી કયો છે?

દ્રશ્યમાન
દ્રષ્ટિ
દ્રષ્ટિવંત
અદ્રશ્ય

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MGVCL Exam Paper (30-07-2021 Shift 3)
A conductor having surface density is embedded in a dielectric medium of permittivity. The electric field in the medium is E. If it is known that the pressure p on the conductor surface is equal to the electric energy density in the medium, then p (in SI unit)is given by

σ²/(2πε)
σ²/(4π)
σ/(4πε)
σ²/(2ε)

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