AP Physics 2 - 2018 FRQ #1 - Magnetism Paragraph

Practice Magnetism Paragraph FRQ Problem for AP Physics 2 In this YouTube video, we discuss the concept of induced current and its relationship with the change in flux. We analyze the behavior of the current at different time points, namely T1, T2, and T3, as a loop enters a field. By examining the change in flux, we observe that at T1 and T2, the flux remains constant due to the consistent velocity of the coil. However, at T3, the flux becomes constant once the coil is fully enclosed. We delve into the direction of the induced current using Lenz's law, which states that the current induces a magnetic field opposing the change in flux. Using the right-hand rule, we determine that the current should flow counterclockwise. Furthermore, we explore an alternative explanation of the problem using the motion of positive charges and their interaction with the magnetic field. Moving on to a new question, we consider a proton moving through the field and calculate the force using F = B * Q * V. We sketch the possible circular paths the proton takes at two different speeds. Additionally, we investigate how to make the proton move in a straight line by applying an electric field in the opposite direction of the magnetic force. The force due to the electric field should equal the force due to the magnetic field to maintain a straight path.