The length of a ferrite slab required operating with a minimum forward insertion loss and 30 dB reverse attenuation and the reverse attenuation at this point is:

The length of a ferrite slab required operating with a minimum forward

1.	The length of a ferrite slab required operating with a minimum forward insertion loss and 30 dB reverse attenuation and the reverse attenuation at this point is:
A.	3 cm
B.	2.4 cm
C.	4 cm
D.	3.6 cm
Answer» C. 4 cm