Two positive point charges of 12 and 5 microcoulombs, are placed 10 cm apart in air. The work needed to bring them 4 cm closer is

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 positive point charges of 12 mu C and 8 mu C are 10 cm apart. The work done in bringing then 4 cm closer is

Two positive point charges of 12 mu C and 8 mu C are 10 cm apart. The work done in bringing then 4 cm closer is

Two positive point charges of 12 mu C and 8 mu C are 10 cm apart. The work done in bringing then 4 cm closer is

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 positive charges of 20 mu C and 8 mu C are 20 cm apart, find the work done in bringing them 5 cm closer