A battery of enf 2 V internal resistance 1 `Omega` is used to send a current through a potentiomet

A battery of enf 2 V internal resistance 1 `Omega` is used to send a current through a potentiometer wire of length 200 cm and resistance 4 `Omega` What length of the potentiometer wire will be required to balace a Daniell cell of enf 1.08 V?