The potential $V$ is varying with $x$ and $y$ as $V\, = \,\frac{1}{2}\,\left( {{y^2} - 4x} \right)\,volt.$ The field at ($1\,m, 1\,m$ ) is
The potential $V$ is varying with $x$ and $y$ as $V\, = \,\frac{1}{2}\,\left( {{y^2} - 4x} \right)\,volt.$ The field at ($1\,m, 1\,m$ ) is
- A
$2\hat i\, + \,\hat j\,\,V/m$
- B
$-2\hat i\, + \,\hat j\,\,V/m$
- C
$2\hat i\, - \,\hat j\,\,V/m$
- D
$-2\hat i\, + \,2\hat j\,\,V/m$
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- [NEET 2020]
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