A constant pitch helical coil is made from a length L=7m of round conductor having a...

A constant pitch helical coil is made from a length L=7m of round conductor having a copper core with diameter d=0.1mm and covered with an insulation of thickness t=0.02m, by winding the conductor on a mandrel having a length Lm=120mm and a diameter dm=3mm and allowing equal leads for connection at the two ends, each with a length l=10mm

Calculate the coil DC resistance if the electrical resistivity of copper is 1.72 µΩcm [marks 2]

Calculate the coil inductance [marks 4]

Calculate the equivalent capacitance of the coil. The relative permittivity of the conductor insulation is εr = 2.3mm [marks 2]

If the coil is attached to a circuit using its leads estimate the supplementary inductance and capacitance introduced by this set-up. [marks 3]

Calculate the resonance frequency for the arrangement considered in d) [marks 1]

Expert Solution

Manojponduru answered 2 years ago

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