When there is a changing magnetic field, electric fields are produced. If this changing magnetic field, and hence resulting electric field, occurs in a metal, currents will result. These currents are called eddy currents. Eddy currents generated in a pendulum are shown to abruptly stop a pendulum, an example of magnetic braking. When there are grooves in the pendulum, thus reducing the amount of eddy currents that can flow, little braking is observed.
Негізгі бет Eddy Currents and Magnetic Braking of a Pendulum Caused by Electromagnetic Induction
Пікірлер: 213