A battery of emf 10 V internal resistance `3 Omega` is connected to a resistor R.
(i) If the current in the circuit is 0.5 A. calculate the value of R.
(ii) What is the terminal voltage of the battery when the cirucit is closed.

A storage battery of emf 0.8 V and internal resistance 0.5 Omega is being charged by a 120 V do 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?

A_(3) volt battery with negligible internal resistance is connected in a circuit as shown in the figure. The current (1) in circuit will be

A coil of inductance 8.4 mH and resistance 6 Omega are connected to a 12 V battery. At what time the current in the coil will be 1.0 A ?