Question

Derive the expression for emf and internal resistors of equivalent cells connected in series combination

Answer 1

$\huge\underline\purple{Answer}$

Consider the circuit given below. 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.❤