A water particle of mass 10 mg and having a charge of `1.5 xx 10^-6C` stays suspended in a room. What is the magnitude and direction of the electric field in the room?

Find the time taken by a particle of mass 10^-18 kg and carrying a charge 3.2 xx 10^-19 C to fall through a distance of 8 m in a uniform electric field of intensity 8 xx 10^2 N C^-1

A spherical conductor of radius 12 cm has a charge of 1.6 xx 10^-7C distributed uniformly on its surface. What is the electric field inside the sphere?

Find the time taken by a particle of mass 4xx10^-18 kg and carrying a charge 6.4xx10^-19 C to fall through a distance of 2m in a uniform electric field of intensity 4xx10^2 NC^-1 .

Find the time taken by a particle of mass 10^-18 kg and carrying a charge 3.2xx10^-19C to fall through a distance of 8.0 m a uniform electric field of intensity 8xx10^2NC^-1 .

Two uniformly large parallel thin plates having charge densities +sigma and -sigma are kept in the X-Z plane at a distance 'd' apart. Sketch an equipotential surface due to electric field between the plates. IF a particle of mass m and charge -q remains stationary between the plates, what is the magnitude and direction of this field?

A spherical conductor of radius 12 cm has a charge of 1.6 xx 10^-7C distributed uniformly on its surface. What is the electric field just outside the sphere?