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Which of the following identities is always zero for static fields?(a) Grad(Curl V)(b) Curl(Div V)(c) Div(Grad V)(d) Curl(Grad V)I have been asked this question in my homework.Asked question is from Maxwell Law 1 in portion Maxwell Equations of Electromagnetic Theory |
Answer» CORRECT choice is (d) Curl(Grad V) To explain: The curl of GRADIENT of a vector is always ZERO. This is because the gradient of V is E and the curl of E is zero for static fields. |
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