Question
Download Solution PDFIn electromagnetism, the magnetic field set up by a steady current density is described by _______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFLaplace's law in electromagnetics, is also known as the Biot–Savart law which describes the magnetic field created by a steady current density. It also describes the interaction between a magnetic field and an electric current when they are applied at right angles to each other and to a conductor of electricity.
Concept:
Biot-Savart Law: The law that gives the magnetic field generated by a steady/constant electric current is known as Biot-savart law.
Let us take a current-carrying wire of current I and we need to find the magnetic field at a distance r from the wire then it is given by:
Where,
μ0 = 4π × 10-7 T m/A is the permeability of free space/vacuum,
'dl' is the length of the element
'r' is the distance between the element and point.
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