Potential in the \( x-y \) plane is given as \( V=5\left(x^{2}+x y\right) \) volts. The electric...

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Potential in the \( x-y \) plane is given as \( V=5\left(x^{2}+x y\right) \) volts. The electric field
\( \mathrm{P} \) at the point \( (1,-2) \) will be

W
(A) \( 3 \mathrm{~J} \mathrm{~V} / \mathrm{m} \)
(A) \( -5 \mathrm{~J} / \mathrm{V} / \mathrm{m} \)
(C) \( 5 \mathrm{~J} \mathrm{~V} / \mathrm{m} \)
(D) \( -3 \mathrm{~J} V / m \)
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