Concentric metallic hollow spheres of radii R and 4R hold charges `Q_1 and Q_2` respectively. Given that surface charge densities of the concentric spheres are equal, the potential difference `V(R)- V(4R)` is :

Two concentric spherical shells fo radill R and 2R are given charges Q_(1) and Q_(2) respectively. The surfaces charge densities of the outer surfaces are equal. Determine the ratio Q_(1) : Q_(2) .

Two concentric conducting shells of radii R and 2R are having charges Q and -2Q respectively.In a region r

Two concentric metallic spherical shell of radii R and 2R are given charges Q_(1) & Q_(2) respectively. The surface charge density on the outer surfaces of the shells are equal. Determine the ratio Q_(1)=Q_(2)

A total charge of Q is distributed over two concentric hollow spheres of radii r and R (R gt r) such that the surface charge densities on the two spheres are equal. The electric potential at the common centre is :

Three concentric metallic spherical shells of radii R, 2R, 3R are given charges Q_(1) Q_(2) Q_(3) , respectively. It is found that the surface charge densities on the outer surface of the shells are equal. Then, the ratio of the charges given to the shells Q_(1) : Q_(2) : Q_(3) is

Three concentric metallic spherical shells of radii R, 2R, 3R are given charges Q_(1) Q_(2) Q_(3) , respectively. It is found that the surface charge densities on the outer surface of the shells are equal. Then, the ratio of the charges given to the shells Q_(1) : Q_(2) : Q_(3) is

Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q_1 , Q_2 , Q_3 , respectively. It is found that the surface charge denisties on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q_1:Q_2:Q_3 , is

Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q_1 , Q_2 , Q_3 , respectively. It is found that the surface charge denisties on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q_1:Q_2:Q_3 , is