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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 17 - Electric Charge and Field > There is a uniform electric field of strength 10^3V/m along y-axis; A body of mass 1 g and change 10^6 C is projected into the field from origin along the positive x-axis with a velocity 10 m/s. Its speed in m/s after 10s will be .(neglect gravitation)

There is a uniform electric field of strength 10^3V/m along y-axis; A body of mass 1 g and change 10^6 C is projected into the field from origin along the positive x-axis with a velocity 10 m/s. Its speed in m/s after 10s will be .(neglect gravitation)

Force between two identical charges placed at a distance of r in vacuum is F. Now a slab of dielectric constant K = 4 is inserted between these two charges . If the thickness of the slab is r/2 then the force between the charges will becomes