I agree with Sammy, that is a capacitor. Resistors are typically black (or blue on some iPhones) and capacitors are brown. Problem is, you would need to know a) the specifications of the capacitor and b) why it blew in the first place. I do not know about iPads, but I imagine just like other Apple products there will be a part number somewhere on the board. That is the number you would use to search for schematics.