And so it will increase the velocity of that current inside that wire. So this equation tells us that a wire that is thick and which is short will propagate the current at a higher velocity because the resistance will be lower. Now we can actually treat the axon as if it was that wire, and we can treat the action potential as if it was that moving electric current. In fact, an action potential is a moving electric current. So from this same equation, we can see that an axon with a larger diameter will propagate that action potential much quicker because the larger diameter means we have a larger area and a thicker area. And so that means a lower resistance.