A cell of emf 2V produces 0.3A current when connected to a resistor of `5Omega`. Calculate the terminal voltage and internal resistance of the cell.

A battery has an emf of 12 V and connected to a resistor of 3Omega . The current in the circuit is 3.93 A. Calculate (a) terminal voltage and the internal resistance of the battery (b) power delivered by the battery and power delivered to the resistor.

The reading on a high resistance voltmeter. When a cell is connected across it is 2.2 V . When the terminals of the cell are connected to a resistance of 5 Omega the voltmeter reading drop to 1.8 V . Find the internal resistance of the cell.

Three identical cells of emf 4V each and unknown internal resistances are connected in parallel.The combination is connected to 10 ohm resistor. If terminal voltage across the cells is 2V, find internal resistance of each cell.

Three identical cells of emf 4V each and unknown internal resistances are connected in parallel.The combination is connected to 10 ohm resistor. If terminal voltage across the cells is 2V, find internal resistance of each cell.

A cell of emf 4V and internal resistance 1Omega is being charged by DC source of 10V through resistor of 5Omega .Calculate the terminal voltage across the cell -

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.

A cell has an emf 1.5V. When connected across an external resistance of 2Omega , the terminal potential difference falls to 1.0V. The internal resistance of the cell is:

A cell has an emf 1.5V. When connected across an external resistance of 2Omega , the terminal potential difference falls to 1.0V. The internal resistance of the cell is: