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Electromagnetic Field Theory - Engineering

Q1:

Distilled water at 25°C is characterized by σ = 1.7 x 10-4 mho/m and ε = 78 ε0 at a frequency of 3 GHz. Its loss tangent is (ε = 10-9/36p F/m)

A 1.3 x 10-5

B 1.3 x 10-3

C 1.7 x 10-4/78

D 1.7 x l0-4/78ε0

ANS:A - 1.3 x 10-5

Loss tangent .