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

A cell supplies a current of 0.9 A through a 1 Omega resistor and a current of 0.3 A through a 2Omega resistor. Calculate the internal resistance of the cell.

A battery supplies a current of 0.9 A through a 2 Omega resistor and a current of 0.3 A through a 7 Omega resistor. Calculate the emf and internal resistance of the battery.

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

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

A cell supplies a current 1.2A through a resistor 2 Omega . The same cell supplies a current 0.4A through a 7 Omega resistor. The internal resistance of the cell is

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