Electromagnetic Field Theory MCQ Questions & Answers | ECE

A. Uniformly over the entire volume of the sphere

B. Uniformly over the outer surface of the sphere

C. Concentrated around the centre of the sphere

D. Along a straight line passing through the centre of the sphere

A. 1

B. ρ

C. 0

D. ∞

A. β = 17.58 rad/m, V_P = 1.43 × 10⁸ m/sec

B. β = 8.79 rad/m, V_P = 2.85 × 10⁸ m/sec

C. β = 5.56 rad/m, V_P = 4.52 × 10⁸ m/sec

D. β = 170 rad/m, V_P = 1.47 × 10⁸ m/sec

A. Single stub

B. Double stub

C. Single stub with adjustable position

D. Quarter wave transformer

A. longest cutoff wavelength

B. shortest frequency

C. infinite attenuation

D. zero attenuation

A. $$\frac{{{q^2}}}{{{r^2}}}$$

B. $$\frac{q}{{{r^2}}}$$

C. $$\frac{q}{{4\pi {r^2}}}$$

D. $$\frac{q}{{4{\pi ^2}{r^2}}}$$

A. The effective area of the electrode is reduced

B. A local positive change is built up in the electrolyte, which repels the positive hydrogen ions away from the copper electrode

C. A gas of hydrogen collects around the zinc stopping the conduction

D. Both A and B

A. capacitive pick-up

B. inductive pick-up

C. resistive pick-up

D. hall-effect pick-up

A. Stoke's theorem

B. Gauss-divergence theorem

C. Carnot's theorem

D. Maximum power transfer theorem

A. 100 Ω

B. 75 $$\sqrt 2 $$  Ω

C. 120 Ω

D. 150 Ω