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Bifilar coils have capacity. These waveforms are all hairy because bifilar coils self-oscillate on their resonant frequency.
I have found that in every coil there exists a certain relation between its self-induction and capacity that permits a current of given frequency and potential to pass through it with no other opposition than that of ohmic resistance, or, in other words, as though it possessed no self-induction. This is due to the mutual relations existing between the special character of the current and the self-induction and capacity of the coil, the latter quantity being just capable of neutralizing the self-induction for that frequency. It is well-known that the higher the frequency or potential difference of the current the smaller the capacity required to counteract the self-induction; hence, in any coil, however small the capacity, it may be sufficient for the purpose stated if the proper conditions in other respects be secured. In the ordinary coils the difference of potential between adjacent turns or spires is very small, so that while they are in a sense condensers, they possess but very small capacity and the relations between the two quantities, self-induction and capacity, are not such as under any ordinary conditions satisfy the requirements herein contemplated, because the capacity relatively to the self-induction is very small.
Nowadays with the availability of cheap high voltage capacitors in virtually any capacitance, it is easy to increase the "self capacity" of any coil by adding a series or parallel capacitor.
So you assume that these two are the same thing, i don't make such assumptions.
If you think the two are different, or you wish to find out whether they are or not... please feel free to post your demonstrations for discussion.
v 20130925 2L 48000 49000 48300 48500 3 0 0 0 -1 -1L 48300 48500 48700 47900 3 0 0 0 -1 -1L 48700 47900 49100 47500 3 0 0 0 -1 -1L 49100 47500 49400 47300 3 0 0 0 -1 -1L 49400 47300 50000 47000 3 0 0 0 -1 -1L 50000 44200 50500 45000 3 0 0 0 -1 -1L 50500 45000 50900 45500 3 0 0 0 -1 -1L 50900 45500 51500 45900 3 0 0 0 -1 -1L 51500 45900 52400 46200 3 0 0 0 -1 -1L 52400 46200 53200 46300 3 0 0 0 -1 -1L 53200 46300 54400 46400 3 0 0 0 -1 -1L 54400 46400 55800 46500 3 0 0 0 -1 -1L 55800 46500 56500 46500 3 0 0 0 -1 -1L 48000 42900 49000 43100 3 0 0 0 -1 -1L 49000 43100 50000 43200 3 0 0 0 -1 -1L 50000 43200 50000 40500 3 0 0 0 -1 -1L 47800 46500 56700 46500 3 0 0 0 -1 -1L 47800 40500 56700 40600 3 0 0 0 -1 -1
#Time for gschem unit in nsXU = 5.0#Voltage for unit for ch 1 and 2 in mVYU1 = 0.5YU2 = 5.0
Input power was 9.952 uWOutput power was 12.026 uW
I cannot try this as i use linux and there is no LTspice for linux, so i have to use other spice circuit simulators.
import sys for s in sys.stdin: l = [] i1 = -1 if (s[0] != "L"): continue for j in range(6): i0 = i1 + 1 i1 = i0 + s[i0:].find(" ") if (s[i0:i1].isdigit()): l.append(int(int(s[i0:i1]) * 6.25)) print("L %d %d %d %d 0" % (l[2], 50000 - l[3], l[0], 50000 - l[1]))