A) \[-6\overset{\hat{\ }}{\mathop{i}}\,\,N/C\]
B) \[3\overset{\hat{\ }}{\mathop{j}}\,\,N/C\]
C) \[-3\overset{\hat{\ }}{\mathop{j}}\,\,N/C\]
D) zero
Correct Answer: B
Solution :
\[{{E}_{x}}=-\frac{\partial v}{\partial x}=-\,4x\] \[{{E}_{y}}=-\frac{\partial v}{\partial x}=+\,3\] \[\overrightarrow{E}={{E}_{x}}\,\hat{i}+{{E}_{y}}\,\hat{j}=-\,4x\,\,\hat{i}+3\hat{j}=3\hat{j}\,N/C\]You need to login to perform this action.
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