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Two inductors whose self-inductance is 80 mH and 60 mH are connected in parallel aiding. The equivalent inductance of the combination is 48.75 mH. Calculate their mutual inductance.
  • a)
    45.6 mH
  • b)
    22.5 mH
  • c)
    30 mH
  • d)
    25 mH
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Two inductors whose self-inductance is 80 mH and 60 mH are connected i...
Concept:
For Additive coupling (assists the self-inductance):


Calculation:
Given: L1 = 80 mH L2 = 60 mH
Leq = 48.75 mH
Mutual inductance can be calculated from equation (1):

2M2 - 195M + 4050 = 0
By using the following formula we can find the roots

On solving the above expression we get:
M = 30 and M = 135/2.
From the given options we can say that M = 30 mH is the correct answer.
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Community Answer
Two inductors whose self-inductance is 80 mH and 60 mH are connected i...
Concept:
For Additive coupling (assists the self-inductance):


Calculation:
Given: L1 = 80 mH L2 = 60 mH
Leq = 48.75 mH
Mutual inductance can be calculated from equation (1):

2M2 - 195M + 4050 = 0
By using the following formula we can find the roots

On solving the above expression we get:
M = 30 and M = 135/2.
From the given options we can say that M = 30 mH is the correct answer.
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Two inductors whose self-inductance is 80 mH and 60 mH are connected in parallel aiding. The equivalent inductance of the combination is 48.75 mH. Calculate their mutual inductance.a)45.6 mHb)22.5 mHc)30 mHd)25 mHCorrect answer is option 'C'. Can you explain this answer?
Question Description
Two inductors whose self-inductance is 80 mH and 60 mH are connected in parallel aiding. The equivalent inductance of the combination is 48.75 mH. Calculate their mutual inductance.a)45.6 mHb)22.5 mHc)30 mHd)25 mHCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Two inductors whose self-inductance is 80 mH and 60 mH are connected in parallel aiding. The equivalent inductance of the combination is 48.75 mH. Calculate their mutual inductance.a)45.6 mHb)22.5 mHc)30 mHd)25 mHCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Two inductors whose self-inductance is 80 mH and 60 mH are connected in parallel aiding. The equivalent inductance of the combination is 48.75 mH. Calculate their mutual inductance.a)45.6 mHb)22.5 mHc)30 mHd)25 mHCorrect answer is option 'C'. Can you explain this answer?.
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