From a point if we move in a direction making an angle \( \theta \)...

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From a point if we move in a direction making an angle \( \theta \) measured from +ve \( \mathrm{x} \)-axis, the potential
P gradient is given as \( \frac{d v}{d r}=2 \cos \theta \). Find the direction and magnitude of electric field at that point.

W
(A) \( 2 \hat{i} \)
(B) \( -2 \hat{i} \)
(C) \( \hat{i}+\hat{j} \)
(D) \( -\hat{i}+\hat{j} \)
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