Two coils, each of self inductance L, are closely wound in series such that the sense of their winding is opposite. The equivalent inductance of the combination is:

Two coils, each of self inductance L, are closely wound in series such

1.	Two coils, each of self inductance L, are closely wound in series such that the sense of their winding is opposite. The equivalent inductance of the combination is:
A.	2L
B.	L/2
C.	Zero
D.	L2
Answer» D. L2