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Electronics and Communication Engineering (ECE) : Electromagnetic Field Theory - Quiz(MCQ)
In good conductors, the electric and magnetic fields will be
A)
45 in phase
B)
45 out of phase
C)
90 in phase
D)
90 out of phase

Correct Answer : Option (B) :   45 out of phase


Explanation : The electric and magnetic fields will be out of phase by 45 in good conductors. This is because their intrinsic impedance is given by η = √(ωμ/σ) X (1+j). In polar form we get 45 out of phase.

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