A spherical cavity of radius r is made in a conducting sphere of radius 2r. A charge 9 is kept at the centre of cavity as shown in the figure. Find the magnitude of the total electric field at(4r 0). у r (0 0) х 9 2r

A spherical cavity of radius r is made in a conducting sphere of radius 2 r.A charge q is kept at the centre of cavity as shown in the figure.Find the magnitude of the total electric field at (4r 0) .

A hemispherical cavity of radius R is created in a solid sphere of radius 2R as shown in the figure . Then y -coordinate of the centre of mass of the remaining sphere is

A hemi-spherical cavity is created in solid sphere (of radius 2R ) as shown in the figure. Then

A positively charge sphere of radius r_0 carries a volume charge density rho . A spherical cavity of radius r_0//2 is then scooped out and left empty. C_1 is the center of the sphere and C_2 that of the cavity. What is the direction and magnitude of the electric field at point B?

A solid spherical conductor of radius R has a spherical cavity of radius at its centre. A charge is kept at the centre of the cavity. The charge at the inner surface, outer surface are respectively.

A conducting sphere of radius 2R carrying charge Q is joined to an uncharged conducting sphere of radius R . Find the charge flow through cinnecting wire.

A sphere of radius 2R and mas M has a spherical cavity of radius R as shown in the figure. Find the value of gravitational field at a point P at a distance of 6R from centre of the sphere.

Cavity of radius r is in metal sphere of radius R .Charge Q is placed at centre of cavity.Metal is uncharged Find potential at point P (reference at oo ) (A) (kQ)/(r) (B) (kQ)/(R) (C) (kQ)/(R) - (kQ)/(r) (D) 0