Suppose the second charge in t^ie previous problem is - 10 x 10^-6 C. Locate the position where a third charge will not experience a net force.

Question

Suppose the second charge in the previous problem is - 10 x 10^-6 C. Locate the position where a third charge will not experience a net force.

(Two charges 2.0 x10^-6 C and 10 x 10^-6 C)

Answer 1

q₁ = 2 ×10^–6 c       q₂ = – 1 × 10^–6 c       r = 10 cm = 10 × 10^–2 m
Let the third charge be a so, F-_AC = – F-_BC  

So, distance = 24.14 + 10 = 34.14 cm from larger charge