- #1

- 47

- 0

wire of radius b on axis inside. If the current is assumed distributed uniformly

throughout the cross section of the wire, must we calculate mutual inductance?

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- Thread starter ber70
- Start date

- #1

- 47

- 0

wire of radius b on axis inside. If the current is assumed distributed uniformly

throughout the cross section of the wire, must we calculate mutual inductance?

- #2

- 284

- 25

wire of radius b on axis inside. If the current is assumed distributed uniformly

throughout the cross section of the wire, must we calculate mutual inductance?

Yes! if the current is AC. Any conductor of any shape or form placed in any physical medium will possess self as well as mutual inductances depending on the proximity of the conductors with each other. The magnitude of this inductance will vary in accordance with the variations in the factors contributing to the said inductance like size, material property proximity, etc.

However, the mutual inductance in this case will contribute towards 'Eddy currents' induced in either conductors depending on the factors mentioned above.

- #3

- 4,662

- 5

In general, the relation between the inductance per unit length L, and the capacitance per unit length C for long concentric or parallel conductors is (for air between the two conductors)

u

e

where c = 2.9979 x 10

For two concentric cylinders of radius a and b (b<a), the

Then if the two cylinders are shorted at the end, and the current on the inner cylinder flows back on the outer cylinder, the

Your problem has a solution that looks very similar to this, but because the current is flowing uniformly inside cylinder a (and not on the surface), there is additional inductance, so you need to solve the complete problem.

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