Explore topic-wise MCQs in Electronics & Communication Engineering.

This section includes 905 Mcqs, each offering curated multiple-choice questions to sharpen your Electronics & Communication Engineering knowledge and support exam preparation. Choose a topic below to get started.

901.

Which of the following devices is used in the microprocessors?

A. JFET
B. BJT
C. MOSFET
D. CMOS
Answer» E.
902.

8416 - 2A16 is equal to

A. 5A16
B. 4A16
C. 7A16
D. 15A16
Answer» B. 4A16
903.

It is desired to design a phase shift oscillator using an FET having a gm = 5000 μSiemen, rd = 40 kΩ and feedback circuit value of R = 10 K. Then value of C for oscillator operation at 1 kHz and that of RD for A = 40 to ensure oscillator action are

A. 6.4 nF, 80 K
B. 6.5 nF, 10 K
C. 6.5 pF, 10 K
D. 65 pF, 80 K
Answer» C. 6.5 pF, 10 K
904.

Compared to a p-n junction with NA = ND = 1014/cm3, which one of the following statements is TRUE for a p-n junction with NA = ND = 1020/cm3?

A. Reverse breakdown voltage is lower and depletion capacitance is lower
B. Reverse breakdown voltage is higher and depletion capacitance is lower
C. Reverse breakdown voltage is lower and depletion capacitance is higher
D. Reverse breakdown voltage is higher and depletion capacitance is higher
Answer» D. Reverse breakdown voltage is higher and depletion capacitance is higher
905.

In the following non planar graph number of independent loop equations are

A. 8
B. 12
C. 7
D. 5
Answer» E.