Cells connected in parallel #!#Equivalent EMF #!#Equivalent Internal resistance

If three cell are connected in parallel then equivalent emf……. and equivalent internal resistance is …..

Assertion : Two non-ideal batteries are connected in parallel with same polarities on same: side. The equivalent emf is smaller than either of the two emfs. Reason : Two non-ideal batteries are connected in parallel, the equivalent inter resistance is smaller than either of the two internal resistances.

A galvanometer connected with an unknown resistor and two identical cells in series each of emf 2 V shows a current of 1 A. If the cells are connected in parallel, it shows 0.8 A. Then the internal resistance of the cell is

Two cells of emfs 1.5 V and 2.0v having internal resistance 0.2 Sigma and 0.3 Sigma respectively are connected in parallel . Calculate the emf and internal resistance of the equivalent cell .

Six cell each of emf E and internal resistance r are connected in series. If due to over sight, two cells are connected wrongly, then the equivalent emf and internal resistance of the combination is

Five cells each of emf E and internal resistance r are connecte in series. Due to oversight one cell is connected wrongly . The equivalent emf and internal resistance of the combination is