Question

• Define poyniting vector, what is it's significance?​

Answer 1

Answer:

the Poynting vector represents the directional energy flux (the energy transfer per unit area per unit time) of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre (W/m2).SIGNIFICANCE: In an electromagnetic field the flow of energy is given by the Poynting vector.

Answer 2

Answer:

Definition: Poynting vector represents the directional energy flux of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre. It is named after its discoverer John Henry Poynting who first derived it in 1884.

Significance: A Poynting vector represents the directional energy flux density of an electromagnetic field, which meeans that it represent the rate of energy transfer per unit area. SI unit of the Poynting vector is the watt per square metre.

Explanation:

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