Human capital can simply be put as the skill sets, capabilities, and experience that employees invite into a business organization. These skill sets, capabilities, and experience add to the employee's productivity. In short, the human capital of a particular organization is the economic values that are added by the employee to that organization.
On the other hand, physical capital can be defined as all man-made, tangible, and nonhuman resources that are used in the processes of production of goods and services. Examples of physical capital include vehicles, machines, plants, and buildings.
What makes up the human capital are past educational background, employee networks, certificate, and ongoing professional related training. In addition, human capital is not tangible, while physical capitals are tangible. It is also easier to calculate capital, but a bit more complex to measure human capital.