In an experiment three microscopic latex spheres are sprayed into a chamber and became charged with charges +3e, +5e and $$-$$3e respectively. All the three spheres came in contact simultaneously for a moment and got separated. Which one of the following are possible values for the final charge on the spheres?

An object has charge of 1 C and gains 5.0 $$\times$$ 10¹⁸ electrons. The net charge on the object becomes -

The electric potential V at any point (x, y, z) is given by V = 3x² where x is in metres and V in volts. The electric field at the point (1 m, 0, 2m) is -

Which of the diagrams correctly represents the electric field between two charged plates if a neutral conductor is placed in between the plates?