Electromagnetic Field Theory MCQ Questions & Answers | ECE

A. static field only

B. time varying fields only

C. both static and time varying fields

D. electric fields only

A. scalar point function

B. vector point function

C. phasor

D. may be scalar or vector point function

A. 40°

B. 5°

C. 10°

D. 20°

A. $$\frac{{2\pi \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

B. $$\frac{{2 \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\pi {\text{x}}}}\frac{{\text{N}}}{{\text{m}}}$$

C. $$\frac{{2 \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

D. $$\frac{{4\pi \times {{10}^{ - 7}}{{\text{I}}^2}}}{{\text{x}}}\frac{{\text{N}}}{{\text{m}}}$$

A. Zero

B. Uniform

C. Increases with distance from axis

D. Decreases with distances from axis

A. $$\iint\limits_S {\overrightarrow H .\overrightarrow d s = }\oint\limits_C {\left( {J + \frac{{\partial \overrightarrow D }}{{\partial t}}} \right)} .\overrightarrow d l$$

B. $$\int\limits_C {\overrightarrow H .\overrightarrow d \ell = \mathop{{\int\!\!\!\!\!\int}\mkern-21mu \bigcirc}\limits_S {\left( {\overrightarrow J + \frac{{\partial \overrightarrow D }}{{\partial t}}} \right)} } .\overrightarrow d s$$

C. $$\mathop{{\int\!\!\!\!\!\int}\mkern-21mu \bigcirc}\limits_S {\overrightarrow H .\overrightarrow d } s = \int\limits_C {\left( {\overrightarrow J + \frac{{\partial \overrightarrow D }}{{\partial t}}} \right)} .\overrightarrow d l$$

D. $$\oint\limits_C {\overrightarrow H .\overrightarrow d l} = \iint\limits_S {\left( {\overrightarrow J + \frac{{\partial \overrightarrow D }}{{\partial t}}} \right)}.\overrightarrow d s$$

A. Helical motion in the $${\hat z}$$ direction

B. Circular motion in the xy plane

C. Linear motion in the $${\hat z}$$ direction

D. Linear motion in the $${\hat x}$$ direction

A. Both capacitors can stores the same maximum energy

B. When connected up in series and changed C₁ will fail first

C. Both capacitors can store the same maximum charge

D. When connected up in series and changed C₂ will fail first

A. Inductive load only

B. Capacitive loads only

C. Loads with any nature of reactance

D. Purely resistive loads only

A. $$\frac{{{a^3}\rho }}{{3{\varepsilon _0}r}}$$

B. $$\frac{\rho }{{6{\varepsilon _0}}}\left( {3{a^2} - {r^2}} \right)$$

C. $$\frac{{4\pi {a^3}}}{{3r}}$$

D. $$\frac{{2\pi }}{3}\left( {3{a^2} - {r^2}} \right)$$