A battery of emf 10V and internal resistance `3Omega` 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 battery when the circuit is closed?

A battery of e.m.f. 10V and internal resistance 3W 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 battery when the circuit is closed?

A battery of emf 10V and internal 2Omega is connected to a reststor.If the current in the is 0.5 A, what is the resistance of the resistor?

When a 12V battery is connected to resistor , 2.5 Ma current flows through the circuit . If so what is the resistance of the resistor ?

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