The thickness of a flat sheet of metal foil is d, and its area is S.A charge q is located at a distance \[\ell \]from the centre of the sheet such that \[d

\[\frac{{{q}^{2}}Sd}{4{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]

\[\frac{{{q}^{2}}Sd}{8{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]

\[\frac{{{q}^{2}}Sd}{6{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]

\[\frac{2{{q}^{2}}Sd}{3{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]

The thickness of a flat sheet of metal foil is d, and its area is S.A

1.	The thickness of a flat sheet of metal foil is d, and its area is S.A charge q is located at a distance \[\ell \]from the centre of the sheet such that \[d
A.	\[\frac{{{q}^{2}}Sd}{8{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]
B.	\[\frac{{{q}^{2}}Sd}{4{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]
C.	\[\frac{{{q}^{2}}Sd}{6{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]
D.	\[\frac{2{{q}^{2}}Sd}{3{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]
Answer» B. \[\frac{{{q}^{2}}Sd}{4{{\pi }^{2}}{{\varepsilon }_{0}}{{\ell }^{5}}}\]