Question

definition of poynting vector​

Answer 1

Explanation:

In physics, 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). It is named after its discoverer John Henry Poynting who first derived it in 1884

Answer 2

Google copied answer :

In physics, 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

actual answer

It refers to E X B / here E and B

are Electric and magnetic field vectors and X refers to cross product of them bro