Materials And Components MCQ Questions & Answers | ECE

A. 2 × 10³ V/m

B. $$\frac{2}{{\sqrt {10} }} \times {10^{ - 4}}{\text{ V/m}}$$

C. $$2 \times \sqrt {10} \times {10^4}{\text{ V/m}}$$

D. 2 × 10⁵ V/m

A. Magnetic poles

B. Magnetic equator

C. Latitude 450

D. Longitude 450

A. Absorbing magnetic field

B. Repelling magnetic field

C. Absorbing electric field

D. Repelling electric field

A. Ionic crystal

B. Metal

C. Valence crystal

D. Vander waals crystal

A. 10^-9ohm m

B. 10^-7ohm m

C. 10^-6ohm m

D. 10^-3ohm m

A. melting temperature

B. recrystallization temperature

C. glass transition temperature

D. freezing temperature

A. collision between atoms

B. losing electrons only

C. gaining electrons only

D. losing or gaining or sharing electrons

A. $$\frac{2}{a}$$

B. $$\frac{{\pi a}}{{\sqrt 3 }}$$

C. $$\frac{\pi }{a}$$

D. $$\frac{{\sqrt 3 \pi }}{a}$$

A. a-3, b-1, c-4, d-2

B. a-2, b-1, c-4, d-3

C. a-3, b-4, c-1, d-2

D. a-2, b-4, c-1, d-3

A. $$\frac{1}{{1 + {e^{\frac{{E - {E_F}}}{{KT}}}}}}$$

B. $$\frac{1}{{1 - {e^{\frac{{E - {E_F}}}{{KT}}}}}}$$

C. $$\frac{1}{{1 + {e^{\frac{{{E_F} - E}}{{KT}}}}}}$$

D. $$\frac{1}{{1 - {e^{\frac{{{E_F} - E}}{{KT}}}}}}$$