Dear Physics students, For those who have registered their Cambridge O Level Exam at the British Council. Your Physics exam is just in three weeks time. If you have not gotten a copy of the Exam timetable, please find your time table here As I was doing revision on Electromagnetic induction with my class. My pupil, Joshua showed this torch to the class. I am excited to share with everyone who is learning this topic for the exam. In the diagram, it shows the application of Faraday's Law. That is when you shake the torch so that the magnet moves in and out of the solenoid. By Faraday's Law, an induced current is produced in the solenoid which is the coil of copper wires. The current induced could therefore power the torch in the absence of a battery or conventional power source. I hope this application of electromagnetic induction helps you picture the principle better. Students who face difficulties in understanding the concept of electromagnetic induction, normally fail to unde...