The equivalent inductance at seen at terminal AB is_____
  • a)
    164
  • b)
    104
  • c)
    84
  • d)
    124
Correct answer is option 'C'. Can you explain this answer?

Electrical Engineering (EE) Question

Pyata Nagraj
Jun 25, 2019

Kommukuri V Rani
Sep 16, 2020
If it is connected in series combination let we have to imagine it can be divided as 3
so
Lt=L1+L2+L3
I.,e LT= 3*28=84

Gm Ram
Nov 25, 2020
Pagl h kya iska ans 8 aayega kon h qn dene vala

Shiv .
Nov 03, 2020
M1, M2, M3 are the mutual inductances.
Leq= L1+L2+L3
�2M1
�2M2
�2M3
The sign conventions depend upon the dots. If dots of both mutual inductors are at positve/negative potential
like dot of L1 is at +ve terminal while the dot of L2 is at +ve terminal
then addition is done & if the dots of both mutual inductors are at either potential, like dot of L1 is at +ve terminal while the dot of L2 is at -ve terminal then subtraction is done.

Suraj Kumar
Nov 16, 2020
Option c is correct because we can using induction in series and parallel combination

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