A point charge is located at origin. At point (a, a) electric field is E1. At point (-a, a) the electric field is E2 and at point (-a, -a) the electric field is E3.
A. E1.E2 = 0
B. |E1 × E2| = 0
C. Both E1.E2 = 0 and |E1 × E3| = 0
D. Neither E1.E2 = 0 nor |E1 × E3| = 0
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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