When the neuron is at rest, that is, when it is not generating any action potential. So this is known as the resting membrane of our neuron. Now, the resting membrane contains a certain voltage difference. There is a certain voltage difference between the inside and the outside of the cell, and this is known as the resting membrane potential. So, once again, the resting membrane potential is the voltage difference or the electric potential difference between the inside and the outside of a neuron that is not generating any action potential. So let's begin by looking at the following diagram.