The final potential energy of the electron is zero Volt, (0 V)
Given;
- total resistance of the circuit, R = 2 ohms
- voltage of the battery, emf = 6 V
- initial voltage of the electron, V₁ = 5.8 V
- time taken for the electron to reach the end of the circuit, t = 5 ns = 5 x 10⁻⁹ s
The driving force of an electron in the circuit is the electromotive force of the cell (emf).
The initial energy acquired by the electron decreases gradually as the electron moves across the circuit and eventually it will be used up. This is the sole reason battery discharges when the circuit is closed or delivering current.
Thus, the final potential energy of the electron at the end of the circuit is zero (0), because all the initial energy will be used up to drive the across the circuit.
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