A coil wound around a core of ferrite material has N = 4.5 windings, length 1 = 10 mm and diameter D = 5 mm. The relative permeability ur = 600. Find the self-inductance L of the coil.
A coil wound around a core of ferrite material has N = 4.5 windings, length 1 = 10 mm and diameter D = 5 mm. The relative permeability ur = 600. Find the self-inductance L of the coil.
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Transcribed Image Text:A coil wound around a core of ferrite material has N
= 4.5 windings, length | = 10 mm and diameter D = 5
mm. The relative permeability pr = 600.
Find the self-inductance L of the coil.
The coil is part of a circuit, and at a certain point the
coil voltage changes from 0 to 10 volts due to an
external pressure.
What will be the rate of change for the coil current
immediately afterwards?
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