An electric field converges at the origin whose magnitude is given by the expression `E=100r N//C`, where r is the distance measured from the origin.

An electric field converges at the origin whose magnitude is given by the expression E = 100 r N/C, where r is the distance measured from the origin.

The electric field in a region is radially outward and at a point is given by E=250" r V"//"m" (where r is the distance of the point from origin). Calculate the charge contained in a sphere of radius 20 cm centred at the origin

A particle is projected along a horizontal field whose coefficient of friction varies as mu=A//r^2 , where r is the distance from the origin in meters and A is a positive constant. The initial distance of the particle is 1m from the origin and its velocity is radially outwards. The minimum initial velocity at this point so the particle never stops is

A particle is projected along a horizontal field whose coefficient of friction varies as mu=A//r^2 , where r is the distance from the origin in meters and A is a positive constant. The initial distance of the particle is 1m from the origin and its velocity is radially outwards. The minimum initial velocity at this point so the particle never stops is

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

A point-charge q is placed at the origin. How does the electric field due to the charge vary with distance r from the origin?

A point charge q is placed at the origin . How does the electric field due to the charge very with distance r from the origin ?

A point charge q is placed at the origin. How does the electric field due to the charge vary with distance r from the origin?