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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Potential differences across the terminals of a cell were measured (in volt) against different currents (in ampere) flowing through the cell. A graph was drawn which was a straight line ABC as shown in figure Determine from graph (i) emf of the cell (ii) maximum current obtained from the cell and (iii) internal resistance of the cell.

Potential differences across the terminals of a cell were measured (in volt) against different currents (in ampere) flowing through the cell. A graph was drawn which was a straight line ABC as shown in figure Determine from graph (i) emf of the cell (ii) maximum current obtained from the cell and (iii) internal resistance of the cell.

6Ω A 20 V battery of internal resistance 1Ω is connected to three coils of 12Ω a resistor of 5Ω and a reversed battery (emf 8 V and internal resistance 2 Omega) as shown in fig Calculate a. the current in the circuit and 4Ω in parallel and c. potential difference across each battery. b. current in resistor of 12Ω coil