Figure shows two charges of equal magnitude separated by a distance $2 \mathrm{a}$. As we move away from the…
Figure shows two charges of equal magnitude separated by a distance $2 \mathrm{a}$. As we move away from the charge situated at $\mathrm{x}=0$ to the charge situated at $\mathrm{x}=2 \mathrm{a}$, which of the following graphs shows the correct behaviour of electric field ?
Solution
For the distances close to the charge at $x=0$ the field is very high and is in positive direction of $x$ -axis. As we move towards the other charge the net electric field becomes zero at $\mathrm{x}=$ a thereafter the influence of charge at $\mathrm{x}=2$ a dominates and net field increases in negative direction of x-axis and grows unboundedly as we come closer and closer to the charge at $\mathrm{x}=2 \mathrm{a}$.
