Nate Core Practice Test

What occurs when a conductor is moved through a magnetic field?

1. A current will be induced in that conductor

2. The magnetic field is weakened

3. The conductor will heat up

4. No change will occur

The correct answer is: A current will be induced in that conductor

When a conductor is moved through a magnetic field, a current will indeed be induced in that conductor due to a phenomenon known as electromagnetic induction. This principle is rooted in Faraday's Law of Electromagnetic Induction, which states that a change in magnetic flux through a circuit induces an electromotive force (EMF) in the conductor. As the conductor moves within the magnetic field, the interaction between the magnetic field and the electrons in the conductor creates a force that pushes those electrons, leading to the flow of electric current. This is a fundamental principle that underpins many electrical technologies, such as electric generators and transformers. The other options do not accurately describe the effects of moving a conductor through a magnetic field. For instance, while induced current might generate heat due to resistance in the conductor, the primary and immediate effect of the movement through the magnetic field is the generation of current.