Two tiny spheres carrying charges `1 muC` and `3 mu C` are located 40cm apart. Find the potential at the mid point of the line joining the charges.

Two tiny spheres carrying charges of 1 mu C and 3 mu C are placed 8 cm apart in air. The electrostatic potential at the midpoint of the line joining the two charges. .....(a)9 × 10 2 V (b)9 × 10 3 V (c)9 × 10 4 V (d)9 × 10 5 V

Two point charge q_A=3muC and q_b=-3muC are located 20 cm apart in vacuum.What is the electric field at the midpoint 0 of the line AB joining the two charge ?

Two point charge q_(A) = 3 muC and q_(B) = -3 muC are located 20 cm apart in vacuum. (a) What is the electric field at the mid point O of the line AB, joining the two charges. (b) 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?

Two fixed point charges +16 mu C and -9 mu C are placed 8 cm apart in air. Where should a third point charge be placed so that, the third charge is in equilibrium

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

Find the mid point of the line segment joining the points (3,0), (-1,4).

Find the equation of the line joining the points (2,3) and (4,1)

Find the distance of the point (4,2) from the line joining (4,1) and (2,3).

Find the equation of the line joining the points (3,-1) and (4,-2)