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 positively charged sphere of radius r_(0) carries a volume charge density rho_(E) (Figure). A spherical cavity of radius r_(0)//2 is then scooped out and left empty, as shown. What is the direction and magnitude of the electric field at point B?

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 non-conducting solid sphere has radius R and uniform charge density. A spherical cavity of radius R/4 is hollowed out of the sphere. The distance between center of cavity is R/2 . If the charge of the sphere is Q after the creation of the cavity and the magnitude of electric field at the center of the cavity is E=K((Q)/(4 pi in_(0)R^(2))) , determined the approximate value of K.

The electric potential due to uniformly charged sphere of radius R ,having volume charge density rho having a spherical cavity of radius R/2 as shown as in figure at point p is

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 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 sphere of charge of radius R has uniform volume charge density. The electric field due to the sphere of charge at a point

A sphere of radius R has a uniform volume density rho . A spherical cavity of radius b, whose center lies at veca , is removed from the sphere. i. Find the electric field at any point inside the spherical cavity. ii. Find the electric field outside the cavity (a) at points inside the large sphere but outside the cavity and (b) at points outside the large sphere.