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Q#1
Electric and Magnetic Fields
GATE EC 2024
MCQ
+2 marks
-0.66 marks
A uniform plane wave with electric field 
is travelling in the air (relative permittivity, 
and relative permeability, 
) in the 
direction (
is a positive constant, 
is the unit vector along the 
axis). It is incident normally on an ideal electric conductor (conductivity, 
) at 
. The position of the first null of the total magnetic field in the air (measured from , in metres) is
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