The kinetic energy of a charged particle decreases by 10 J as it moves from a point at potential 100V to a point at potential 200V. Find the charge on the particle.

Which of the following quantities do not depend on the choice of zero potential or zero potential energy?

Consider the situation of the previous problem. A charge of –2.0 × 10^–4 C is moved from the point A to the point B. Find the change in electrical potential energy U_B – U_A for the cases (a), (b) and (c).

A point charge q is rotated along a circle in the electric field generated by another point charge Q. The work done by the electric field on the rotating charge in one complete revolution is

Two identical particles, each having a charge of 2.0 × 10^–4 C and mass of 10g, are kept at a separation of 10 cm and then released. What would be the speeds of the particles when the separation becomes large?

The kinetic energy of a charged particle decreases by 10 J as it moves from a point at potential 100V to a point at potential 200V. Find the charge on the particle.

How much work has to be done in assembling three charged particles at the vertices of an equilateral triangle as shown in figure?

Two charged particles, having equal charges of 2.0 × 10^–5 C each, are brought from infinity to within a separation of 10 cm. Find the increase in the electric potential energy during the process.

When the separation between two charges is increased, the electric potential energy of the charges

Two particles have equal masses of 5.0g each and opposite charges of +4.0 × 10^–5 C and –4.0 × 10^–5 C. They are released from rest with a separation of 1.0 m between them. Find the speeds of the particles when the separation is reduced to 50 cm.