Consider a coin. It is electrically neutral and contains equal amounts of positive and negative charge of magnitude `34.8 kC`. Suppose that these equal charages were concentrated two point charges separated by
`10^6 ,`(radius of the earth). find the force on each such point charge. What do you conclude from these results?

Consider a coin, It is electrically neutral and contains equal amounts of positive and negative charge of magnitude 34.8 kC . Suppose that these equal charages were concentrated two point charges separated by 100 m(-length of a long building),find the force on each such point charge in this case. What do you conclude from these results?

A paisa coin is made up of Al-Mg alloy and weights 0.75g. It has a square shape and its diagonal measures 17 mm. it is electrically neutral and contains equal amounts of positive and negative charges. Treating the paisa coins made up of only Al, find the magnitude of equal number of positively and negatively charages. what conclusion do you draw from this magnitude?

Two equal charges placed in air and separated by a distance of 2 m repel each other with a force of 10^-4 N. Calculate the magnitude of either of the charges.

A charge of 20muC produces an electric field. Two points are 10 cm and 5 cm from this charge. Find the vlaue of potentials at these points and also find the amount of work doe to take an electron from one point to the other.

Two point charges equal to +10muC and +20muC are 1 m apart. What is the amount of work done to bring them clsoer to each other by 50 cm.

Two equal positive charges, each of 5 muC interact with a third positive charge of 10 muC situated as shown in the figure. Find the magnitude and direction of the force experinced by the charge of 10 muC

Consider an over all neutral sphere of radius R. This sphere has a point charge +Q at its centre and this positive charge is surrounded by a uniform density rho of negative charge upto a radius R. Use Gauss' law to obtain expressions for the electric field of this at a point distant r form its centre. where r < R. show that these two expressions give identical results for the elctric field at r = R.

Consider an over all neutral sphere of radius R. This sphere has a point charge +Q at its centre and this positive charge is surrounded by a uniform density rho of negative charge upto a radius R. Use Gauss' law to obtain expressions for the electric field of this at a point distant r form tis centre. where r > R. show that these two expressions give identical results for the elctric field at r = R

Two point charges q_A = 3 muC and q_B = -3 muC are located 20 cm apart in vacuum. 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?