The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is `0.4 Omega` what is the maximum current that can be drawn from the battery ?

Terminal voltage of battery of 1.25 V and emf of battery" 1.5V , so internal resistance of battery is ...... Omega .

(a) Six lead-acid type of secondary cells each of emf 2.0 V and internal resistacne 0.015Omega are joined in series to provide a supply to a resistance of 8.5 Omega. What are the current drawn from the suply and its terminal voltage ? (b) A secondary cell after long use has an emf of 1.9 V and a large internal resistance of 380 Omega. What maximum current can be drawn from the cell? Could the cell drive tghe starting motor of a car ?

Calculate the current drawn from the battery in the given network

(a) Three resistors 2 Omega 4 Omega and 5 Omega are combined in parallel. What is the total resistance of the combination ? (b) If the combination is connected to a bettery of emf 20 V and neglibible internal resistance, determine the current through each resistor, and the total current drawn from the battery.

A battery of emf 2.0 V and internal resistance 0.10 Omega is being charged with a current of 5.0 A . Find the potential difference between the terminals of the battery?

A battery of emf 2.0 V and internal resistance 0.10 Omega is being charged with a current of 5.0 A . Find the potential difference between the terminals of the battery?

The emf of a battery is 2V and its internal resistance is 0.5Omega the maximum power which it can deliver to any external circuit will be

A battery or emf 10 V and internal resistance 3 Omega is connected to a resistot. If the current in the circuit is 0.5 A, what is the resistance of the resistor ?

A battery has e.m.f. 4 V and internal resistance r . When this battery is connected to an external resistance of 2 ohms , a current of 1 amp . flows in the circuit. How much current will flow if the terminals of the battery are connected directly