Let L1 & L2 are inductance of two Inductors. Ls is series inductance and Lp is parallel inductance for the two Inductors. M is "Mutual inductance".
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SERIES COMBINATION |
PARALLEL COMBINATION |
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Ls
= L1 +L2
If
both coils are placed close to each other, Ls
= L1 +L2 ± 2M |
Lp
= L1L2/L1 +L2
If
both coils are placed close to each other, Ls
= L1L2 – M2 |
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If
‘n’ coils of equal inductance ‘L’ are put in series, then Ls = nL |
If
‘n’ coils of equal inductance ‘L’ are put in series, then Lp = L/n |
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Ls/Lp
= n2 |
Lp/Ls
=1/ n2 |
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Voltage
‘V’ is divided |
Voltage
‘V’ is not divided |
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