Two more important laws in this course are Faradays and Lenzs laws, which contribute greatly to real-world appliances like a generator. These laws are the basis of which mechanical energy can be converted into electrical energy. Here, you will learn how to calculate these two laws. The things to take away from this are that: Faradays law gives the induced EMF in a changing magnetic field and Lenzs law gives the direction of the magnetic field induced by the current from a magnetic flux shift. Meaning, these laws will always apply to problems that involve changing magnetic fields. Always remember that half of physics is knowing the math, while the other half is knowing when to apply certain equations.
The induced emf (potential difference) due to a changing magnetic field is equal in magnitude to the rate of change of the magnetic flux through a surface bounded by the circuit. This is known as Faraday’s Law.
The current induced by a changing magnetic flux creates a magnetic field opposing the change in flux. This is known as Lenz’s Law.
Faraday's Law & Lenz's Law
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.
This book includes a comprehensive review of the key AP Physics C concepts and targeted strategies for acing every section of the exam. Additionally, the book includes two full length practice tests with full answer explanations.
The book offers a complete review of your AP course, strategies to give you the edge on test day, and plenty of practice with AP-style test questions. It includes 2 full length practice exams modeled on the real test, 3 separate plans to fit your study stle, review material updated to the most recent tests, and all the terms and concepts you need to know.