A rectangular waveguide is a
A. Rectangular conducting wire to propagate electromagnetic waves
B. Hollow rectangular walled room carrying electromagnetic wave
C. Hollow rectangular conducting tube through which electromagnetic waves can be propagat-ed
D. Tube antenna to transmit and receive electromagnetic waves
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Electromagnetic Field Theory
A loop antenna is a commonly used for
A. Radar
B. Direction finding
C. Satellite communication
D. All of the above
The divergence of a vector is a scalar, while the curl of a vector is another
A. Scalar
B. Vector
C. Unit vector
D. None of the above
Which antenna is a wideband antenna?
A. Hertz antenna
B. Marconi antenna
C. Folded dipole
D. None of the above
A. Accelerating
B. Retardation
C. Oscillating
D. Lagging the current
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