what is the nature of current strictly work for biot savart law
Answers
Answer:
In physics, specifically electromagnetism, the Biot–Savart law is an equation describing the magnetic field generated by a constant electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.
Answer:
The Biot–Savart law originally was developed to find the magnetic field of a long wire, in order to explain the torque on a permanent magnet (a compass needle). Ampère's work was more ambitious: to determine the force between two current-carrying circuits. By theoretical reasoning, he found a form for , which we do not present, that enforced action and reaction between every pair of current elements in the two circuits. Although this form correctly gives the net force between any current element and a closed current-carrying circuit, it is not accepted today. Although the Ampère force law and the Biot–Savart law do not enforce action and reaction between every pair of current elements in the two circuits, overall momentum is conserved when the momentum of the electromagnetic field (Section 15.10) is included.