I currently own a "WD My Passport Ultra 2 TB", It needs 500 mA to run.
I only have a usb adapter that supplies my pi (2 b) with 1A.
Would getting a better adapter allow me to power the 2TB drive?
If that won't work,
Should I just get a powered USB hub?
Get the 1TB version instead of 2tb drive for less power consumption?