For open circuit condition what is value of terminal voltage of cell ?

Four identical cells each of emf 2V, are joined in parallel providing supply of current to external circuit consisting of two 15 Omega resistors joined in parallel. The terminal voltage of the cells ae read by an ideal voltmeter is 1.6V. Calculate the internal resistance of each cell.

For following circuit what is the value of total resistance between X and Y?

A bettery of emf 10 V and internal resistacne 3 Omega is connected to a resistor. If the current in the circuit is 0.5A, what is the resistance of the resistor ? What is the terminal voltage of the bettery when the circuit is closed ?

Two cells X and Y are connected to a resistance of 10Omega shown in the figure. The terminal voltage of cell Y is:-

Internal resistance of cell having emf 24 V is 0.12 Omega . If cell is joined with external resistance 3 Omega , so terminal voltage of cell is .......

If E_0 represents the peak value of the voltage in an a.c. circuit, the rms value of the voltage will be ......

For cell with non zero (finite) internal resistance write relation between terminal voltage and emf of cell.

What are ac voltage ?

A storage battery of emf 8.0V and internal resistance 0.5Omega is being charged by a 120 V de supply using a series resistor of 15.5Omega. What is the terminal voltage of the battery during charging? What is the purpose of having a series resistor in the charging circuit ?