Manipal MET2020PhysicsMagnetic Effects of Current
The force per unit length between two parallel current carrying straight conductors separated by 2 d is given by the formula
Options
- A₀ 4 i₁ i₂ d
- B₀ 4 i₁ i₂ 2 d
- C₀ i₁ i₂ 2 d
- DNone of these
Correct answer
A. ₀ 4 i₁ i₂ d
Step-by-step solution
Force per unit length between the two parallel current carrying wires F L = ₀ 2 r i₁ i₂= ₀ 2 (2 d) i₁ i₂= ₀ i₁ i₂ 4 d [ r=2 d]