Induced Potential Difference in Wires

What is the primary condition required for electromagnetic induction to occur in a wire?

• The wire must be stationary within a magnetic field.

• The wire must be made of a non-conductive material.

• The wire must experience a change in the magnetic field.

• The wire must be heated to a high temperature.

An induced potential difference in a wire will generate an electric current only if what condition is met?

• The wire is made of a ferromagnetic material.

• The wire is part of a complete circuit.

• The magnetic field is constant.

• The wire is moving parallel to the magnetic field lines.

Under which circumstance would a wire moving within a magnetic field NOT induce a potential difference or current?

• The wire is moved perpendicular to the magnetic field lines.

• The wire is moved through a stronger magnetic field.

• The wire is moved back and forth parallel to the magnetic field lines.

• The wire is part of a closed circuit.

Which of the following actions would increase the size of the induced potential difference in a wire?

• Using weaker magnets.

• Moving the wire more slowly through the magnetic field.

• Shaping the wire into a coil with more turns.

• Moving the wire parallel to the magnetic field lines.