three charges are placed at the vertices of an equilateral triangle, the length of side is 20mm. the magnitude of charge is qa=2e, qb=2/3e, qc=1/2e. find the total force at each vertex and at centroid and also at circum centre, also find the electricfield at each charge
three charges are placed at the vertices of an equilateral triangle, the length of side is 20mm. the magnitude of charge is qa=2e, qb=2/3e, qc=1/2e. find the total force at each vertex and at centroid and also at circum centre, also find the electricfield at each charge