If \(V = \frac{{10}}{{{r^2}}}sin\theta .cos\varphi \), the electric flux density at \(\left( {2,\frac{\pi }{2},0} \right)\) is

\(10.2~\overrightarrow {{a_r}} ~pC/{m^2}\)

\(32.1~\overrightarrow {{a_r}} ~pC/{m^2}\)

\(22.1~\overrightarrow {{a_r}}~ pC/{m^2}\)

\(5.8~\overrightarrow {{a_r}} ~pC/{m^2}\)

If \(V = \frac{{10}}{{{r^2}}}sin\theta .cos\varphi \), the electric

1.	If \(V = \frac{{10}}{{{r^2}}}sin\theta .cos\varphi \), the electric flux density at \(\left( {2,\frac{\pi }{2},0} \right)\) is
A.	\(32.1~\overrightarrow {{a_r}} ~pC/{m^2}\)
B.	\(22.1~\overrightarrow {{a_r}}~ pC/{m^2}\)
C.	\(10.2~\overrightarrow {{a_r}} ~pC/{m^2}\)
D.	\(5.8~\overrightarrow {{a_r}} ~pC/{m^2}\)
Answer» C. \(10.2~\overrightarrow {{a_r}} ~pC/{m^2}\)

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If \(V = \frac{{10}}{{{r^2}}}sin\theta .cos\varphi \), the electric flux density at \(\left( {2,\frac{\pi }{2},0} \right)\) is

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