Question

The two possible equivalentinductance (legs of two series.connected coils with self-inductances 0.07H and o.o9H andmutual inductance is 0.01 H are​

Answer 1

0.18H   and   0.14H are two possible equivalent inductance  if 0.07H and 0.09H  connected in series with mutual inductance  0.01 H

Explanation:

Mutually Connected Inductors in Series

L₁  & L₂

Leq   = L₁  +   L₂   ± 2M

L₁  =  0.07H

 L₂   =  0.09 H

 M  = 0.01 H

Two possible  equivalent inductance

L₁  +   L₂   +  2M   or  L₁  +   L₂  - 2M

= 0.07 + 0.09 + 2(0.01 )  or   0.07 + 0.09 - 2(0.01 )

= 0.18H   or 0.14H

0.18H   and   0.14H

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