Question

Three identical constant pitch thin helical coils (having a pitch 1mm, axial length L=100mm and inner diameter 12mm) are positioned along a common axis. The axial distance between the first and the second is Z1=8mm, the distance between the second and the third is Z2=100mm and the distance between the first and the third is Z3=Z1+Z2+L. Number of turns is 1

Calculate the self inductance of each of the three coils [marks 3]

Calculate the mutual inductance between all pairs of coils i.e., M1,2, M1,3 and M2,3. [marks 8]

Calculate the total effective inductance of a system made from the three coils connected in series, if all coils are generating magnetic fields in the same direction. [marks 4]

Three identical constant pitch thin helical coils (having a pitch 1mm, axial length L=100mm and inner diameter 12mm) are positioned along a common axis. The axial distance between the first and the second is Z1=8mm, the distance between the second and the third is Z2=100mm and the distance between the first and the third is Z3=Z1+Z2+L

Calculate the self inductance of each of the three coils [marks 3]

Calculate the mutual inductance between all pairs of coils i.e., M1,2, M1,3 and M2,3. [marks 8]

Calculate the total effective inductance of a system made from the three coils connected in series, if all coils are generating magnetic fields in the same direction. [marks 4]

Answer #1

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