All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
Knowledge is of two kinds:
The first is what is compulsory on the Muslim to know as an individual. This includes rulings concerning his Salah (prayer), Saum (fasting), Hajj (pilgrimage), Zakah and the transactions which he needs in his dealings. If the person cannot learn this except with a Riba (interest and/or usury) loan, then it is lawful for him/her to take this loan as remaining ignorant of such rulings causes destruction for the Muslim in this mundane life and the Hereafter.
The second type of knowledge is what is not obligatory on the individual Muslim to know. This includes any lawful matter or communal obligation regardless of whether this knowledge is from the Sharee’ah or other subjects. However, it is unlawful to learn this knowledge using unlawful earnings because getting this knowledge is not a necessity that makes Riba lawful. So, it is unlawful for you to take a Riba loan for your study if what you will study is from the second category. On the other hand, low interest rates do not change the ruling as Riba is forbidden regardless of its being small or large. Also, the ruling is the same if the debt is removed because of bankruptcy or inability to pay as the contract is forbidden from the beginning.
Allaah Knows best.