Question

two primary cells of emf E1 and E2 (E2E1) are connected to the potentiometer wire AB .the balancing lengths for the two combinations of the cells are 250cm and 400cm, find the ratioof E1 and E2

Answer 1

The circuit in fig shows two cells connevtef in opposition to each other ..cell ... The circuit in fig shows two cells connevtef in opposition to each other ..cell E1 is of emf 6 V and internal resistamce 2ohm the cell E2 i og emf 4V amd internal rwsiarance 8ohm Find potentisl difference between the points A and B.