What is the force between two small charged spheres having charges of `2 xx 10^(–7)C and 3 xx 10^(–7)C` placed 30 cm apart in air?

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

The ratio of force between two small charged sphere(i)in air(ii)in a medium of dielectric constant'K' is

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?

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

What is the different between the following. (i) 2.5 xx 10^3 g and 2.50 xx 10^3g (ii) 160 cm and 160.0cm

Two insulated charged copper spheres A and B have their center separated by a distance of 50 cm .What is the mutual force of electrostatic repulsion if the charge on each is 6.5xx10^(-7)C ?The radii of A and B are negligible compared to the distance of separation.

Two point charge q_(A) = 3 muC and q_(B) = -3 muC are located 20 cm apart in vacuum. (a) What is the electric field at the mid point O of the line AB, joining the two charges. (b) If a negative test charge of magnitude 1.5 xx 10^(-9)C is placed at this point. What is the force experienced by the test charge?

Two tiny spheres carrying charges of 1 mu C and 3 mu C are placed 8 cm apart in air. The electrostatic potential at the midpoint of the line joining the two charges. .....(a)9 × 10 2 V (b)9 × 10 3 V (c)9 × 10 4 V (d)9 × 10 5 V

In parallel plate capacitor with air between the plates, each plate has an area of 6 xx 10^3m^2 and the distance between the plates is 3mm. Calculate the capacitance of the capacitor if it is connected to 100V supply.What is the charge on each plate of the capacitor?