A material has conductivity of 10 2 mho/m and a relative permittivity of 4 the frequency at which conduction current in the medium is equal to the displacement current is

A material has conductivity of 10 2 mho/m and a relative permittivity

1.	A material has conductivity of 10² mho/m and a relative permittivity of 4 the frequency at which conduction current in the medium is equal to the displacement current is
A.	45 MHz
B.	90 MHz
C.	450 MHz
D.	900 MHz
Answer» B. 90 MHz

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A material has conductivity of 10 2 mho/m and a relative permittivity of 4 the frequency at which conduction current in the medium is equal to the displacement current is

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A material has conductivity of 10² mho/m and a relative permittivity of 4 the frequency at which conduction current in the medium is equal to the displacement current is