Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 663
fied when the currents are alternating.When the current is steady it is uniformly distributedthroughout the cross-section of the conductor. But whenthe current is simple harmonic it is more concentrated atthe surface than at deeper or more internal parts of thecross-section. This causes the… … 272 2 1 _474 4 pl/* + . . .)(13), -f 180 R*13 pH V4 or, L = L — lfi\ 48 E1 8640 S4 1 pHy 13 pny 48 E2 ~8640 B* (14). In these equations E and L are the ordinary values ofthe resistance and inductance for steady currents, Bf andl! their special values when the currents are simpleharmonic of period…
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