A cell of emf `2.2V` sends a current of `0.2A` through a resistance of `10 Omega`. The internal resistance of the cell is ______

Choose correct alternative. A battery of emf 2V sends a current of 0.1A when connected to a resistance 18 Omega , The internal resistance of cell is

A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega . Calculate (a) internal resistance of the cell and (b) emf of the cell.

Find the minimum number of cell required to produce an electron current of 1.5A through a resistance of 30 Omega .Given that the emf internal resistance of each cell are 1.5 V and 1.0 Omega respectively

A cell of emf epsilon and internal resistance r gives a current of 0.5 A with an external resistance of 12 Omega and a current of 0.25 A with an external resistance of 25 Omega. Calculate (a) internal resistance of the cell

Three resistances 8 Omega,20 Omega and 40 Omega are connected in parallel and the combination is joined to a cell of emf 2.1 V. IF current through the lowest resistances is 0.25A, determine the terminal resistance of the cell.

A cell supplies a current of 0.9 A through a 2 Omega resistor and a current of 0.3 A through a 7 Omega resistor. The internal resistance of the cell is