Analog Circuits Mock Test 10

1. What is incorrect regarding the output offset voltage of op-amp?

2. Consider the circuit shown below where the breakdown voltage of the diode is 5V. Source voltage varies between 6V to 12V.

Find the maximum current through the R2, given that R1=2kΩ and R2=5kΩ.

3. If the positive lead of a DMM, with the mode set to ohmmeter is connected to the base and the negative lead to the emitter and a low resistance reading is obtained, then what is the type of transistor that is being tested?

4. For the circuit, calculate the phase shift.

It is given that R1=20kΩ, C1=2nF, R2=22kΩ, and input signal is 2sin6π103t.

5. In a power supply, the output voltage can vary due to multiple reasons. Which of these is not true if it is found that the output voltage is constant?

6. What is the frequency response of the filter shown below?

Given R1C1=R2C2.

7. Consider the circuit shown and find the percentage increase in power dissipation of the transistor if the source voltage increases by 10%.

Given that the breakdown voltage is 5V, R1=10kΩ, R2=100kΩ, R3=200kΩ, R4=10Ω. The source voltage V_S=25V.

8. Consider the ideal op-amp shown and find the correct output.

9. What is the output of the IC 7924?

10. For a BJT, for common base configuration the input characteristics are represented by a plot between which of the following parameters?