the current in the potentiometer is 100cm in length is adjusted to give a null point at 50cm with a standard cell of emf 1.018 volt. the maximum emf which can be measured with this potentiometer is
the current in the potentiometer is 100cm in length is adjusted to give a null point at 50cm with a standard cell of emf 1.018 volt. the maximum emf which can be measured with this potentiometer is