The induced drag is an indication of the amount of energy lost to the tip vortices. The magnitude of induced drag depends on the amount of lift being generated by the wing and on the wing geometry. Additional sources of drag include wave drag and ram drag. As an aircraft approaches the speed of sound, shock waves are generated along the surface. The magnitude of the wave drag depends on the Mach number of the flow.
Ram drag is associated with slowing down the free stream air as air is brought inside the aircraft.
Jet engines and cooling inlets on the aircraft are sources of ram drag.