Which of the following equations results from the circuital form of Ampere's law?
A. $$\nabla \times {\text{E}} = - \frac{{\partial {\text{B}}}}{{\partial {\text{t}}}}$$
B. $$\nabla .{\text{B}} = 0$$
C. $$\nabla .{\text{D}} = \rho $$
D. $$\nabla \times {\text{H}} = {\text{J}} + \frac{{\partial {\text{D}}}}{{\partial t}}$$
Answer: Option D
Related Questions on 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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