Problem

Calculate the inductance, L, for the following long coils: (Note: 1 m = 100 cm and 1 m2 =...

Calculate the inductance, L, for the following long coils: (Note: 1 m = 100 cm and 1 m2 = 10,000 cm2.)

a. air core, 20 turns, area 3.14 cm2, length 25 cm.


b. same coil as step a with ferrite core having a µr, of 5000.


c. air core, 200 turns, area 3.14 cm2, length 25 cm.


d. air core, 20 turns, area 3.14 cm2, length 50 cm.


e. iron core with µr, of 2000, 100 turns, area 5 cm2, length 10 cm.

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