This physics video tutorial provides a basic introduction into transformers. It explains how to calculate the voltage, current, and power in the primary coil and the secondary coil given the number of primary turns and secondary turns. This video also explains how to determine the efficiency of a transformer and how to determine if a transformer is a step up transformer or a step down transformer. This video contains plenty of examples and practice problems. Magnetism - Review: https://www.youtube.com/watch?v=csMqfwJRjCs Faraday's Law of Electromagnetic Induction: https://www.youtube.com/watch?v=LDOa7UdfcMQ Lenz's Law - Induced Current: https://www.youtube.com/watch?v=HhFZfWLl-P0 Induced EMF In Moving Conductor: https://www.youtube.com/watch?v=ogPT-Py-ss0 Electric Generators & Induced EMF: https://www.youtube.com/watch?v=-QJS6i1bhG4 ______________________________ Counter EMF of DC Motors: https://www.youtube.com/watch?v=a7oj0REQzpE Transformers - Physics Problems: https://www.youtube.com/watch?v=GJm-FOMeG4E Mutual Inductance & Solenoids: https://www.youtube.com/watch?v=_w0vk7lFoqc Self-Inductance of Inductors & Coils: https://www.youtube.com/watch?v=gMn0MDl4vkc How To Make an Electromagnet: https://www.youtube.com/watch?v=4BUsCLPMQtk _________________________________ Faraday's & Lenz's Law of Electromagnetic Induction: https://www.youtube.com/watch?v=jz92oOkJFNA Energy Stored In an Inductor: https://www.youtube.com/watch?v=Yl2VeN1Zeu8 RL Circuits - Inductors & Resistors: https://www.youtube.com/watch?v=RR0sQeDAxgk Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections