Which statement correctly describes the function of a step-up transformer?
It increases the frequency of an alternating voltage.
It increases the magnitude of an alternating voltage.
It converts direct current into alternating current.
It increases the power output compared to the power input.
136 exam-style questions on CIE IGCSE Physics 4.5.6a Construction and operation of a transformer. Each one has a worked solution and a mark scheme showing where the marks go.