Question
Download Solution PDFThe unit of Poynting vector is :
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe unit of the Poynting vector is Power density.
Explanation:
- The Poynting vector (S) is defined as the rate of energy per unit area.
- The rate of energy is also known as power.
- Therefore, S =
- where, S = Poynting vector , P = Power and A = Area
- Unit of Power is the watt (W) and the area is m2.
- So, the SI unit of S =
Important Points
The Poynting vector {S} is also defined as:
S = E × H
where, S = Poynting vector
E = Electric field vector
H = Magnetic field vector
× = Cross product
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