Given two point charges q1 and `q2`, such that q1q2<0. What is the nature of force between them?

Two point charges q_(1) and q_(2) of magnitude +10^(-8)C and -10^(-8)C , respectively, are placed 0.1m apart. Calculate the electric field at points A, B, and C shown in figure. '(##VPU_HSS_PHY_XII_CO1_E01_009_Q01##)'

Two point charges q_1 and q_2 are separated by a distance r in space:-What happens to the force between the charges:-When the magnitude of the point charge Increases.

Two closed surfaces S_1 and S_2 enclose two charges q_1 and q_2 one over the other. If q_1=+6 mu C and q_2 = 4 mu C find the ratio of the flux passing through sur-faces S_1 and S_2 .

Three point charges +2mu C each are placed at the corners of an equilateral triangle of side 1m. Find the magnitude of the force between charge q_1 and q_2 [F_12] and q_1 and q_3 [F_13]