Magnetic flux: if a loop, of area A, sits in a uniform magnetic field B, a magnetic flux exists through the loop. If the loop plane is perpendicular to B, the flux is equal to BA. If the
normal to the plane of the loop makes an angle theta with B, then the flux is given by BAcos(theta).
Faradays law: If the magnetic flux through a loop changes with time, an emf is induced in the loop. The value of the emf is minus the rate of change of the magnetic flux.
Lenzs law: this law determines the direction of the current induced in a loop due to the changing magnetic flux. It states that the induced current has a direction so as to oppose the
change of flux that induces the current. For example, if B is in the positive z direction and is increasing with time, and the loop is in the x-y plane, then the induced current will be
clockwise, so as to produce a magnetic field in the negative z direction.
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.
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 full length practice exams modeled on the real test and all the terms and concepts you need to know.
This book includes a review of all the topics tested including vectors, kinematics, fluid mechanics, optics and nuclear physics. Additionally, the book includes two full length tests made complete with descriptive solutions, and quick study tables for Physics B formulas and equations.