derive the expression for equivalent emf&equivalent internal resistance when 2cells are completed in series
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derive the expression for equivalent emf&equivalent internal resistance when 2cells are completed in series
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Answer:
The cell can be modified with an emf ε and the internal resistor with resistance r which is connected in series. ... So, V = ε – Ir, where V is the potential difference across the circuit, ε is the emf, I is the current flowing through the circuit, r is internal resistance.
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