The "equal transit time" theory is a common wrong explanation for this force.
It has nothing to do with magnetic fields, but the BiotÂ–Savart  (byoh-sah-VARR)  law can be used to derive this force in a theory derived by Ludwig Prandtl. The "equal transit time" theory is a common wrong explanation for this force. The magnitude of this force equals the bulk density times velocity times the line integral of velocity around a closed circle, or circulation. This force is proportional to the angle of attack for small angles. A flat (*)  plate will not experience this force, since it requires streamlines to be compressed, generating a pressure gradient. This force arises not due to Bernoulli's principle, as is commonly thought, but when Newton's Third Law is applied to an airfoil. For 10 points, name this force that counteracts gravity and acts upward on airplane wings.
It has nothing to do with magnetic fields, but the BiotÂ–Savart  (byoh-sah-VARR)  law can be used to derive this force in a theory derived by Ludwig Prandtl.
aerodynamic  lift 