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Q. At a point in space, the electric field points towards north. In the region surrounding this point, the rate of change of potential will be zero along

NTA AbhyasNTA Abhyas 2020Electrostatic Potential and Capacitance

Solution:

$E_{e a s t - w e s t}=\text{0}\Rightarrow \left(\frac{d v}{d r}\right)_{e a s t - w e s t}=0$