Question

Equation for internal resistance of a cell

Answer 1

Answer:

V = ε – Ir. 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. Usually internal resistance of a cell is not considered because ε >> Ir.

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Answer 2

Answer:

V = ε – Ir. 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