Two cells having an internal resistance of `0.2 Omega` and `0.4 Omega` are connected in parallel, the voltage across the battery is 1.5 V. If the emf of one cell is 1.2 V, then the emf of second cell is

Two cells having an internal resistance of 0.2 Omega and 0.4 Omega are connected in parallel (same polarity) the voltage across the battery is 1.5 V. If the emf of one cell is 1.2 V, then the emf of second cell is

Two cells of emf 1.25V,0.75V and each of internal resistance 1Omega are connected in parallel. The effective emf will be

A cell of emf 2V and internal resistance 0.1 Omega is connected with a resistance of 3.9Omega . The voltage across the cell terminals will be