Which of the following statement is correct?
A. In semiconductors, electron and holes move in an electric field and in the same direction
B. Electric field density is exactly equal to the sum of electric field intensity and polarization
C. Ampere's circuital law states that the line integral of $$\overline {\text{H}} $$ about any closed path is exactly equal to the direct current enclosed by the path
D. None of the above
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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