According to phenomenon of mutual inductance,

Options

A. The mutual inductance does not depend on geometry of two coils involved
B. The mutual inductance depends on the intrinsic magnetic property, like relative permeability of material
C. The mutual inductance is independent of the magnetic property of the material
D. Ratio of magnetic flux produced by the coil 1 at the place of the coil 2 and the current in the coil 2 will be different from that of the ratio defined by interchanging the coils

Answer

B

Explanation

`M_(12)=M_(21)=M=mu_(0)mu_(r)n_(1)n_(2)(pir_(1)^(2))l`.