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# DFCCIL EE/EC Analog Circuits QUIZ - 4

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Question 1

Consider the circuit shown below.

If op-amps in the circuit are ideal, then which of the following option is correct?

If op-amps in the circuit are ideal, then which of the following option is correct?

Question 2

Match the following List – I with List – II

List-I (Power Amplifiers)

P. Class – A

Q. Class – B

R. Class – AB

S. Class – C

List-II (Conduction Angle)

(1) 360°

(2) 180°

(3) Between 180° and 360°

(4) less than 180°

Question 3

Study the circuit shown in the figure below

A current controlled current source (CCCS) is designed by using of an ideal op-amp circuit. If the output current Io of the circuit which is measured across the load resistance R

A current controlled current source (CCCS) is designed by using of an ideal op-amp circuit. If the output current Io of the circuit which is measured across the load resistance R

_{L}is related to the input as I_{0}=I_{i}/C then the value of C is equal toQuestion 4

The op amp configuration shown below has following transfer function s. The feedback resistance used has 1.5 MΩ , the value of capacitance will be ___________ µf.

Question 5

For the opamp biasing shown in figure, it was found experimentally even at zero bias the current flowing into positive terminal is 15nA and current flowing into negative terminal is 10nA. If the output voltage of op-amp is 8mV. The value of feedback resistance R

_{f}is__________.Assume (R_{f}≫ R). R = 0.5 kΩ

Question 6

Find the capacitor voltage V

_{C}at t=1msec if switch is closed as t=0. Assume capacitor initially uncharged and op-amp is not saturated.- 133 attempts
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Jun 18ESE & GATE EC

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V V Satya Narayana MadasuMember since Sep 2020

Gate Qualified in 2018,2019,2020,2021| ISRO Exam qualified| AIR -672|Completed M.Tech in VLSI Design