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MHT CET Physics question

PhysicsElectric Charges and FieldsMHT CET

A cylinder of radius 4 mm and surface density of charge 0.25 is surrounded by a medium of dielectric constant 6.28. The magnitude of electric field at a point 2 m away from the axis of the cylinder is

Answer: (A)

Solution

\dfrac{σ R}{kε_0 r}\dfrac{0.25×10^{-6}× 4×10^{-3}}${6.28×

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Question ID VK-075216