find the internal resistance of a cell having EMF of two world and the potential difference across the terminals of the cell drop 1 volt when the resistance of 10 ohm is connected across it
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Internal resistance is measured in Ohms. The relationship between internal resistance (r) and emf (e) of cell s given by. Where, e = EMF i.e. electromotive force (Volts), I = current (A), R = Load resistance, and r is the internal resistance of cell measured in ohms.
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