A straight wire carrying an electric current is positioned perpendicular to a magnetic field, resulting in an electromagnetic force acting on the wire.
Which statement is correct?
The force acts in a direction parallel to the magnetic field lines.
Reversing only the direction of the magnetic field reverses the direction of the force.
Reversing both the current and the magnetic field reverses the direction of the force.
The wire must be made of a magnetic material, such as iron, for a force to exist.
19 exam-style questions on CIE IGCSE Physics 4.5.4a Force on a current-carrying conductor. Each one has a worked solution and a mark scheme showing where the marks go.