GATE2013-5

Question

For a vector $E$, which one of the following statements is $\text{NOT TRUE}$?

• A. If $\Delta.E=0,\;E$ is called solenoidal
• B. If $\Delta \times E=0,\;E$ is called conservative
• C. If $\Delta\times E=0,\;E$ is called irrotational
• D. If $\Delta.E=0,\;E$ is called irrotational