The resistance of the galvanometer G in the circuit is 2502. The meter deflects full scale for a current of 10 mA. The meter behaves as an ammeter of three different ranges: The range is 0-10A, if the terminals O and P are taken; range is 0-1A between O and Q; range is 0-0.1A between O and R. Calculate the resistance Ri, R2, and R.