Explain The Biot Savart Law
Answers
Answer:
This law gives elemental field due to a current element.
Answer:
What is Biot-Savart Law?
Biot-Savart’s law is an equation that gives the magnetic field produced due to a current carrying segment. This segment is taken as a vector quantity known as the current element.
What is the Formula of Biot-Savart’s Law?
Consider a current carrying wire ‘i’ in a specific direction as shown in the above figure. Take a small element of the wire of length ds. The direction of this element is along that of the current so that it forms a vector i ds.
To know the magnetic field produced at a point due to this small element, one can apply Biot-Savart’s Law. Let the position vector of the point in question drawn from the current element be r and the angle between the two be θ.
Where, μ0 is the permeability of free space and is equal to 4π × 10-7 TmA-1.
The direction of the magnetic field is always in a plane perpendicular to the line of element and position vector. It is given by the right-hand thumb rule where the thumb points to the direction of conventional current and the other fingers show the magnetic field’s direction.
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