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Q.
In a region of constant potential
NTA AbhyasNTA Abhyas 2022Electrostatic Potential and Capacitance
Solution:
Potential is constant.
Hence, $E=-\frac{d V}{d r}$
$E=0$ [$\therefore $ as $ V \rightarrow $ constant]
If there is a charge, there will be an electric field associated with it.