Jump to content


Sign in to follow this  
  • entries
  • comments
  • views

Physics of Credit Cards

Sign in to follow this  


While at work the other day, I was extremely bored so I decided to think of blogpost ideas. During this time, I was starring at the credit card machine and I thought it would be interesting to learn the physics behind credit cards. Credit cards are an interesting system that uses a magnetic strip to store information. Credit cards use Faraday's Law which allows current to go through the coil in it. This current goes through simple amplification and this creates binary code. The signal is then read by the computer. This is a simplified idea of how credit cards work, but in the end Faraday's Law, Biot-Savart Law and Ohm's Law are all used in the creation of a credit card.

Sign in to follow this  


Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now