A student places a compass near a straight copper wire. When there is an electric current in the wire, the compass needle deflects. Which statement explains this deflection?
The copper wire exerts a strong gravitational attraction on the compass needle.
The copper wire is a naturally magnetic material.
The electric current in the wire creates a magnetic field.
The electric current induces a static electric charge on the compass needle.
30 exam-style questions on CIE IGCSE Physics 4.5.3a Magnetic effect of a current and its applications. Each one has a worked solution and a mark scheme showing where the marks go.