A non-conducting disc of radius 1m has charge distributed over its surface. The surface density of charge at a point is given by σ=A–Br;0≤r≤1 where r is the distance of point from the centre of the disc. The disc is rotated with an angular velocity ω about an axis passing through its centre and perpendicular to disc. Then

A non-conducting disc of radius 1m has charge distributed over its sur

1.	A non-conducting disc of radius 1m has charge distributed over its surface. The surface density of charge at a point is given by σ=A–Br;0≤r≤1 where r is the distance of point from the centre of the disc. The disc is rotated with an angular velocity ω about an axis passing through its centre and perpendicular to disc. Then
Answer» A non-conducting disc of radius 1m has charge distributed over its surface. The surface density of charge at a point is given by $σ = A - B r; 0 \leq r \leq 1$ where r is the distance of point from the centre of the disc. The disc is rotated with an angular velocity $ω$ about an axis passing through its centre and perpendicular to disc. Then

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