Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Induction

Question:

A circuit contains two inductors of self inductance L1 and L2 in series as shown in fig. If M is the mutual inductance then the effective inductance of the circuit is 

Options:

L1+L2  

 L1+L-2M

L1+L+M 

 L1+L+2M

Correct Answer:

 L1+L-2M

Explanation:

in this type of combination, L = L1+L2-2M