Electric Cell

When the chemicals in the electric cell are used up, the electric cell stops producing electricity. The electric cell is then replaced with a new one. In case of rechargeable batteries (such as the type used in mobile phones, camera and inverters), they are used again and again. How?

When a resistor of 11 Omega is connected in series with an electric cell, the current following in it is 0.5 A . Instead, when a resistor of 5 Omega is connected to the same electric cell in series, the current increases by 0.4 A The internal resistance of the cell is

An ammeter and a voltmeter of resistance R connected in seires to an electric cell of negligible internal resistance. Their readings are A and V respecitvely. If another resistance R is connected in parallel with the voltmeter

An ammeter and a voltmeter of resistance R are connected in series to an electric cell of negligible internal resistance . Their readings are A and V respectively. If another resistance R is connected in parallel with the voltmeter , then

Material : Connecting wires , electric cells, electrical resistance, voltmeter , ammeter , plug key. Procedure : Connect the circuit as shown in the accompanying figure after taking the components with proper values. Measure the current (I). Also measure the potential difference (V)_(AB) between the two ends (A and B) of the resistance . The potential at A is higher than the potential at B as the point A is connected to the positive electrode of the cell and the point B to the negative electrode of the cell. What happens to this energy?