A) \[\varepsilon \]
B) \[\varepsilon \]
C) \[\hat{i}+2\hat{j}+\hat{k}\]
D) \[-3\hat{i}-2\hat{j}+\hat{k},\]
Correct Answer: A
Solution :
Key Idea Electric field at a point is equal to the negative gradient of the electrostatic potential at that point. Potential gradient relates with electric field according to the following relation \[{{s}_{1}}\] \[{{s}_{2}}\] \[{{s}_{2}}=2{{s}_{1}}\]
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