Why Is An MRI Scan So Noisy?

MRI scans, you have to lie still for up to an hour, they are small and can be clostrophobic but worst they are SO NOISY. All you want to do is sleep and try and get your mind off what's going on around you but how can you possbly sleep with the constant beeping of the scan.

So today I'm gonna to figure out why MRI scans are so loud.

Here's what I Found:

Inside the MRI scan metal wired coils which are called called gradient coils. When electricity is passed through the coil, a magnetic field is created. ... As stronger magnets result in stronger vibrations, the higher the field strength of the scanner the louder the banging.