Electromagnetic Field Theory MCQ Questions & Answers | ECE

A. $$\nabla .\overrightarrow E = \frac{P}{{{\varepsilon _0}}}$$

B. $$\nabla .\overrightarrow B = 0$$

C. $$\nabla \times \overrightarrow E = - \frac{{\partial \overrightarrow B }}{{\partial t}}$$

D. $$\nabla \times \overrightarrow B = {\mu _0}l + \mu {\varepsilon _0} - \frac{{\partial \overrightarrow E }}{{\partial t}}$$

A. At its maximum value

B. At $$\sqrt 2 $$ of its maximum value

C. At $$\frac{1}{2}$$ of its maximum value

D. Zero

A. Only through the conducting region

B. Only through the non-conducting regions

C. Both through conducting and non-conducting regions

D. Through the conducting regions for half a cycle and through the non-conducting regions for the next half cycle

A. Are parallel to each other

B. Are one and same

C. Cut each other orthogonally

D. Can be inclined to each other at any angle

A. Uniform and E ≤ E₀

B. Uniform and E ≥ E₀

C. Varies but E < E₀ always

D. Varies but E > E₀ always

A. 5 V

B. 10 V

C. 25 V

D. 50 V

A. Parametric dispersion

B. Solution dispersion

C. Spherical dispersion

D. Cylindrical dispersion

A. Spheres

B. Concentric cylinders

C. Non-concentric cylinder

D. None of the above

A. Biot Savart Law

B. Ampere's Law

C. Faraday's Law

D. Law of conservation of magnetic flux

A. VSWR

B. Wavelength

C. Power

D. Impedance