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Choose the wrong statement: |
Potential difference across the terminals of the cell in a closed circuit is less than its emf. Internal resistance of the cell decrease with decrease in temperature of electrolyte. Terminal potential difference versus current graph for a cell is a straight line with a negative slope. Terminal potential difference when cell is being charged V = E + Ir. |
Terminal potential difference when cell is being charged V = E + Ir. |
Potential difference across the terminals of the cell in a closed circuit is $ V = E - Ir $ when cell is being discharged Terminal potential difference versus current graph for a cell is a straight line with a negative slope. $ V = E + Ir $ when cell is being charged In the presence of electrolyte, internal resistance, Ri is inversely proportional to temperature T. It is because, as we increase the temperature, more electrolyte dissociates and resistance decreases.
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