Coulomb.s Law is a quantitative statement about the force between two point charges.Two ions carrying equal charges repel with a force of `1.48 x 10^(-8) N` when they are separated by a distance of `5 x 10^(-10)m`. How many electrons have been removed from each iron?

Coulomb.s Law is a quantitative statement about the force between two point charges.Write the mathematical expression of the above law.

Calculate the coulomb's force between two alpha particles separated by a distance of 3.2 xx 10^(-15)m .

What is the force between two small charged spheres having charges of 2x10^-7C and 3x10^-7C placed 30cm apart in air?

Potential energy of a system of charges is directly proportional to the product of charges and inversely to the distance between them.Two point charges 3 x 10^(-8) C and - 2 x 10^(-8) C are separated by a distance of 15cm. At what point on the line joining the charges the potential is zero?

Two long and parallel straight wires A and B carrying currents of 8.0A and 5.0A in the same direction are separated by a distance of 4.0cm. Estimate the force on a 10cm section of wire A.

Two equal charges placed in air separated by a distance 3m repel each other with a force of 0.1 gf. Calculate the magnitude of either of the charges?

Two point charges of +5 xx 10^(-19)C and +20 xx 10^(-19)C are separated by a distance of 2m. Find the point on the line joining them at which electric field is zero. (Find the position of null point)