Question

In order to have a current in a long wire, it should be connected to a battery or some such device. Can we obtain the magnetic due to a straight, long wire by using Ampere's law without mentioning this other part of the circuit?

Answer 1

Explanation:

yes we can obtain the magnetic due to a straight long wire by using ampere law without mentioning this other part of the circuit

Answer 2

Explanation:

• We can obtain a magnetic field due to a straight, long wire using Ampere's law by mentioning the current flowing in the wire, without emphasising on the source of the current in the wire.
• We should have a constant current flow in the wire to apply Ampere's circuital law irrespective of its source.
• Around an electric current, the magnetic field in space is proportional to the current that helps as the source, similar to the space’s electric field is proportional to the charge that supports as its source.
• It is stated by the Ampere's Law that for any locked loop method, the length elements sum times the magnetic field in the length element direction is equal to the penetrability times the electric current in the loop.