A solid sphere having radius `R` and uniform charge density `rho` has a cavity of radius `R/2` as shown in figure then the value of `|(E_(A)/(E_(B)))|`=`(m)/(17)` .Find the value of m

A solid sphere having radius R and uniform charge density rho has a cavity of radius R/2 as shown in figure.Find the value of |E_A /E_B|

A thick shell with inner radius R and outer radius 3R has a uniform charge density rho.It has a spherical cavity of radius R as shown in figure.The electric field at the centre of the cavity is (n rho R)/(12 varepsilon_(0)) . Find n.

A solid non-conducting sphere of radius R is charged with a uniform volume charge density rho . Inside the sphere a cavity of radius r is made as shown in the figure. The distance between the centres of the sphere and the cavity is a. An electron of charge 'e' and mass 'm' is kept at point P inside the cavity at angle theta = 45^(@) as shown. If at t = 0 this electron is released from point P, calculate the time it will take to touch the sphere on inner wall of cavity again.

A fixed sphere of radius R and uniform density rho has a spherical cavity of radius R//2 such that the surface of the cavity passes through the centre of the sphere. A particle of mass m is located at the centre (A) of the velocity. Calculated (a) The gravitational field at A . (b) The velocity with which the particle strikes the centre O of the sphere. (Neglect earth's gravity)

A solid sphere having uniform charge density rho and radius R is shown in figure. A spherical cavity ofradius (R)/(2) is made in it. What is the potential at point O?

An infinitely long solid cylinder of radius R has a uniform volume charge density rho . It has a spherical cavity of radius R//2 with its centre on the axis of cylinder, as shown in the figure. The magnitude of the electic field at the point P , which is at a distance 2 R form the axis of the cylinder, is given by the expression ( 23 r R)/( 16 k e_0) . The value of k is . .

Consider a sphere of radius R which carries a uniform charge density rho . If a sphere of radius R/2 is carved out of it,as shown, the ratio (vecE_(A))/(vecE_(B)) of magnetic of electric field vecE_(a) and vecE_(B) , respectively, at points A and B due to the remaining portion is:

A circular metallic disc of radius R has a small circular cavity of radius r as shown in figure. On heating the system :

A circular metallic disc of radius R has a small circular cavity of radius r as shown in figure. On heating the system

Inside a uniform sphere of mass M and radius R, a cavity of radius R//3 , is made in the sphere as shown :