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QJEEM22Ph16a9: JEE Main 2022 Physics - Class 12 JEEM22Ph16a9 Solution: Two coils of self inductance L 1 and L 2 are connected in…

Two coils of self inductance L1 and L2 are connected in series combination having mutual inductance of the coils as M. The equivalent self inductance of the combination will be :

JEE Main 2022 (Online) 26th June Evening Shift Physics - Electromagnetic Induction Question 60 English

Multiple Choice Options

  • A 1L1+1L2+1M{1 \over {{L_1}}} + {1 \over {{L_2}}} + {1 \over M}
  • B L1+L2+M{L_1} + {L_2} + M
  • C L1+L2+2M{L_1} + {L_2} + 2M
  • D L1+L2−2M{L_1} + {L_2} - 2M

Step-by-Step Verified Solution

Self inductances are in series but their mutual inductances are linked oppositely so equivalent self inductance

L = L1 + L2 −- M −- M = L1 + L2 −- 2M

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