📣 Paper 3 has been removed from NET from 2018 (Notification)- now paper 2 and 3 syllabus is included in paper 2. Practice both paper 2 and 3 from past papers.
NTA NET Electronic Science December 2014 Questions and Answers Part 2
Online Paper 1 complete video lectures with Dr. Manishika Jain. Join now!
Q-8. In FM
(1) Carrier never becomes zero
(2) J-coefficient occasionally are negative
(3) Total power remains constant with respect to modulation index
(4) Pulse rate decreases
Answer: 1
Q-9. In thyristor di/dt failure is prevented by
(1) Putting L in series with anode
(2) Putting R in series with anode
(3) Putting C in series with anode
(4) Putting RC in series with anode
Answer: 1
Q-10. The driving point impedance Z (s) of a network has pole – zero plot as shown, if , then ?
(1)
(2)
(3)
(4)
Answer: 2
Q-11. The C. E. configuration is normally preferred because it provides:
i. Voltage gain
ii. Current gain
iii. Power gain
iv. Stability
Which is correct?
(1) i, ii
(2) i, ii, iii
(3) ii, iii
(4) ii, iii, iv
Answer: 2
12. An element between the two terminals of a network to which a connection can be made is
Called ________ while the branches of the tree are called ________
i. Branch
ii. Node
iii. Twig
iv. Loop
Which is correct?
(1) i, ii
(2) ii, iii
(3) iii, iv
(4) i, iv
Answer: 2
13. Consider the following statements regarding an RC phase shift oscillator:
i. Amplifier gain is positive.
ii. Amplifier gain is negative.
iii. Phase shift introduced by the feedback network is 180°.
iv. Phase shift introduced by the feedback network is 360°.
Which is correct?
(1) i, ii
(2) ii, iii
(3) i, iii
(4) i, iv
Answer: 2
Q-14 Read the following statements:
i. Gate is a combinational logic.
ii. JK Flip-flop in toggle mode is not combinational logic.
iii. MSJK FF suffers from race-around.
iv. Counters are sequential circuits.
Which is correct?
(1) i, ii
(2) i, ii, iv
(3) ii, iii, iv
(4) i, ii, iii
Answer: 2
Q-15 Which of the following peripherals provide I/O facilities?
i. 8279
ii. 8155
iii. 8259
iv. 8255
Choose the Correct Option:
(1) i, ii
(2) ii, iii
(3) iii, iv
(4) ii, iv
Answer: 4