What will be the magnitude of electric field at point $O$ as shown in figure ? Each side of the figure is $I$ and perpendicular to each other.
What will be the magnitude of electric field at point $O$ as shown in figure ? Each side of the figure is $I$ and perpendicular to each other.
- [JEE MAIN 2021]
- A
$\frac{q}{4 \pi \varepsilon_{0}(l)^{2}}$
- B
$\frac{1}{4 \pi \varepsilon_{0}} \frac{q}{(2l^{2})}(2 \sqrt{2}-1)$
- C
$\frac{1}{4 \pi \varepsilon_{0}} \frac{q}{l^{2}}$
- D
$\frac{1}{4 \pi \varepsilon_{0}} \frac{2 {q}}{2l^{2}}(\sqrt{2})$
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