What is the value of the magnetic vector potential due to an infinitesimally small current element, evaluated at infinite distance from it?
A. Infinity
B. Unity
C. Zero
D. Any number between zero and infinity depending on the strength of the current element
Answer: Option C
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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