In today’s physics lesson, we focused on two questions from the May 2017 Paper 1, specifically discussing the step-down transformer. A step-down transformer has more turns in its primary coil (2,500) than in its secondary coil (150), which reduces the voltage from 230 volts in the primary to a lower level in the secondary. We also explored the concept of magnetic flux, explaining how it changes when the current in the coil fluctuates, leading to the generation of alternating current. Understanding these principles is crucial, as they are foundational concepts in electromagnetism.