Two positive point charges of `0.2 muC and 0.01 muC` are placed 10 cm apart. Calculate the work done in reducing the distance to 5 cm.

Two point charges + 0.2muC and 0.01muC are placed 10cm apart. Calculate the work done in reducing the distance 5cm between them.

Two charges of 5muC and 20muC are placed 20 cm apart. Calculate the work done in bringing the charges closer to 15 cm apart.

Two positive point charges 15 muC and 10 muC are 30 cm apart. Calculate the work done in bringing them closer to each other by 15 cm.

Two positve charges of 12 muC and 8 muC respectively are 10 cm apart. Find the work done in bringing them 4 cm closer, so that, they are 6 cm apart.

Two point charges 0.01muC and -0.01muC are place 10 cm apart in vacuum. Calculated the magnitude of electric field intensity at the middle point of the line joining the charges and mention its direction.

Two charges of 2muC and 5 muc are placed 2.5 cm apart. The ratio of the Coulombs force experienced by them is :

Two point charges of + 20 muC and - 80 muC are placed 18 cm apart. Find the position of the point where electric field is zero

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.