Two 2.60 V- batteries with their positive terminals in the same direction are inserted in series into the barrel of a flashlight. one battery has an internal resitance of 0.228 ohm, the other an internal resistance of 0.162 ohm. When the switch is closedm a current of 0.700 A passes through the lamp.

a.) What is the lamp’s resistance?

b.)What fraction of the powerdissipated is dissipated in the bateries?