Analog Electronics MCQ Questions & Answers | ECE

A. $$\alpha = \frac{\beta }{{\beta - 1}}$$

B. $$\alpha = \beta \left( {1 + \beta } \right)$$

C. $$\beta = \frac{\alpha }{{1 - \alpha }}$$

D. $$\beta = \frac{\alpha }{{1 + \alpha }}$$

A. 45.8 mV

B. 45.102 mV

C. 40.006 mV

D. 42.6 mV

A. 180°

B. More than 180° but less than 270°

C. 0°

D. More than 90° but less than 180°

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

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

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

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

A. same as single stage

B. higher than single stage

C. lower than single stage

D. higher if stage gain is low and lower if stage gain is high

A. 1 only

B. 2 only

C. 1 and 2

D. 1 and 3

A. $$\frac{1}{{40\pi }}\cos \left( {2000\pi t - 1} \right)$$

B. $$\cos \left( {2000\pi t - 1} \right)$$

C. $$\frac{{ - 1}}{{40\pi }}\cos \left( {2000\pi t - 1} \right)$$

D. $$ - \cos \left( {2000\pi t - 1} \right)$$

A. Increase the charging time of C

B. Decrease the charging time of C

C. Increase the discharging time of C

D. Decrease the discharging time of C

A. 106 Hz

B. 10.6 Hz

C. 106 kHz

D. 10.6 kHz

A. 4.5 × 10¹¹ cm^-2

B. 6.0 × 10¹¹ cm^-2

C. 7.2 × 10¹¹ cm^-2

D. 8.4 × 10¹¹ cm^-2