What happens to a copper wire when it is moved across a magnetic field?
Electric current is induced, but not voltage.
It is attracted to the negative pole of the magnetic field.
Voltage and electric current are induced.
It is attracted to the positive pole of the magnetic field
Well, when a copper wire is moved across a magnetic field, something quite shocking happens. It's like a party for electrons! Electric current is induced, my friend. But remember, no voltage is induced because wires don't have magical powers. So, while the copper wire may be attracted to magnetic poles, it's the current that takes center stage here. Dance, electrons, dance!
When a copper wire is moved across a magnetic field, voltage and electric current are induced. This is due to a phenomenon called electromagnetic induction. When the wire cuts through the magnetic field lines, it experiences a change in magnetic flux. According to Faraday's law, the change in magnetic flux induces an electromotive force (EMF) in the wire, which in turn leads to the flow of electric current. Therefore, the correct answer is: Voltage and electric current are induced.
When a copper wire is moved across a magnetic field, an electric current is induced in the wire. This phenomenon is known as electromagnetic induction. To understand why this happens, you need to know a few concepts related to electromagnetism.
1. Magnetic Field: A magnetic field is a region around a magnet or a current-carrying wire where magnetic forces are exerted. It is represented by magnetic field lines.
2. Magnetic Flux: Magnetic flux is a measure of the strength of the magnetic field passing through a given area. It depends on the strength of the magnetic field and the angle at which the magnetic field lines intersect the area.
3. Faraday's Law of Electromagnetic Induction: Faraday's law states that a change in the magnetic field passing through a wire loop induces an electromotive force (emf), also known as voltage, in the wire.
Now, returning to the question, when a copper wire is moved across a magnetic field, the magnetic flux through the wire loop changes. According to Faraday's law of electromagnetic induction, this change in magnetic flux induces an emf in the wire. This emf causes mobile electrons in the wire to move, resulting in an electric current.
Therefore, the correct answer is "Voltage and electric current are induced."
Current is produced in a conductor when it is moved through a magnetic field because the magnetic lines of force are applying a force on the free electrons in the conductor and causing them to move.
. a voltage will be induced in the wire.