MCQ
Two long thin charged rods with charge density $\lambda$ each are placed parallel to each other at a distance $d$ apart. The force per unit length exerted on one rod by the other will be $\left(\right.$ where $\left.k=\frac{1}{4 \pi \varepsilon_0}\right)$
- A$\frac{k 2 \lambda}{d}$
- ✓$\frac{k 2 \lambda^2}{d}$
- C$\frac{k 2 \lambda}{d^2}$
- D$\frac{k 2 \lambda^2}{d^2}$
