In summary, positive connections signify higher potential, and negative connections signify lower potential. Current flows from the positive to the negative terminal, creating an electric circuit. This flow is fundamental to the functioning of electrical devices. Why Do Electrons Move from Negative to Positive in a Battery?
During the discharge of a battery, the current in the circuit flows from the positive to the negative electrode. According to Ohm’s law, this means that the current is proportional to the electric field, which says that current flows from a positive to negative electric potential. But what happens inside the battery?
In a battery, the negative terminal has a surplus of electrons, while the positive terminal has a deficiency of electrons. This imbalance creates an electric field that drives the electrons from the negative side to the positive side through an external circuit.
When a battery is being charged, the process is essentially reversed. The current flows from the external power source (such as a wall adapter) into the battery, and then from the positive terminal to the negative terminal inside the battery. This allows the battery to replenish its stored energy and be recharged for future use.
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