What the difference between power frequency inductance and high frequency inductance?

Answer 1

As the frequency becomes higher then its wavelength would decrease.

In case of mechanical waves such as sound waves higher frequency means higher the pitch. In Sanskrit it is known as 'shruthi'. Singers would sing at different shruthi.

In case of electromagnetic wave such as light, as frequency increases the colour changes. So highest frequency in the visible region will be the violet and the lowest is the red. Also the energy of the wave photon is given by the expression E = h nu, where nu is the frequency of the wave. So higher the frequency higher the content of energy in the photon compared to the lower frequency radiation.

Answer 2

At high frequency less inductance is needed for an specific impedance and even the ferrromagnetic core could be eliminated BUT parasitic capacitance between turns becomes a problem as they adds susceptance with wrong sign so they are made of few turns threaded in a ferrite ring or an entangled coil to avoid long contact between loops (then stray capacitance). When a low frequency filter is needed they might be PI type with both types of inductors in serie and also different type of capacitors on parallel to ground as audio/power capacitors might have a parasitic inductance in series (coiled plates) that avoid RF to be eliminated.

Answer 3

High and low are comparatives.

Frequency is most often measured in hertz (cycles per second).

While 10,000 hertz is high compared to 5,000 hertz both are high compared to 100 hertz.