The effect is called the Lenz Effect. The moving magnet causes small magnetic fields, called eddy currents, to form in the metal (brass, aluminum foil/tube ...). These eddy currents have their own magnetic field (all electrical currents do). This is what is interacting with the moving magnet.
1 Limited use: The Angel Card can only be used in Victoriaâs Secret and PINK stores. 2  While you may also use the card at Bath & Body Works stores, you will not earn Angel Reward points on those purchases.
You can use your Visa Debit Card with payWave for any amount in Australia. Purchases under $100 can be paid for by âwave and goâ, and you can 'wave and PIN' all other transactions by entering your PIN on the merchantâs terminal.