Yes, according to Faraday's law of electromagnetic induction, a changing magnetic field can induce an electric current in a nearby conductor, such as a copper wire. When the magnetic field through a conductor changes, the magnetic field lines cut across the conductor, which creates an induced electromotive force (EMF) that drives the flow of electric current.
This phenomenon can be explained by the principle of electromagnetic induction. When a conductor, like a copper wire, cuts across magnetic field lines or experiences a change in the magnetic field passing through it, it generates an induced EMF. This induced EMF then causes an electric current to flow through the conductor if it forms a closed circuit.
The magnitude of the induced current depends on factors such as the rate at which the magnetic field changes, the strength of the magnetic field, the orientation of the wire with respect to the field, and the properties of the conductor.
This principle is fundamental to the operation of devices like electric generators and transformers, where the motion of a magnet or a changing current generates an alternating current (AC) in a coil of wire.
In summary, a changing magnetic field can indeed induce a current in a copper wire or any other conductor, as described by Faraday's law of electromagnetic induction.