Question

A proton is taken from point P₁ to point P₂, both located in an electric field. The potentials at points P₁ and P₂ are − 5 V and + 5 V respectively. Assuming that kinetic energies of the proton at points P₁ and P₂ are zero, the work done on the proton is :

The figure shows four pairs of parallel identical conducting plates, separated by the same distance 2.0 cm and arranged perpendicular to x-axis. The electric potential of each plate is mentioned. The electric field between a pair of plates is uniform and normal to the plates.