# Input Offset Voltage – 2 MCQ’s

This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Input Offset Voltage – 2″.

1. Find the thevenin’s equivalent for resistance and voltage?

a) 1-iii, 2-ii, 3-1
b) 1-ii, 2-I, 3-iii
c) 1-I, 2-ii, 3-iii
d) 1-ii, 2-iii, 3-i

2. Calculate the maximum thevenin equivalent resistance, if a 10kΩ potentiometer is used?
a) 0.4kΩ
b) 5 kΩ
c) 2.5kΩ
d) 4kΩ

3. Choose the compensating network design for non-inverting amplitude
a) b) c) d) None of the mentioned

4. Find the value of Ra and Rb from the circuit shown?

a) Ra =4.6kΩ ; Rb= 9kΩ
b) Ra =7.3kΩ ; Rb= 3.4kΩ
c) Ra =2.5kΩ ; Rb= 5.1kΩ
d) Ra =4kΩ ; Rb= 10kΩ

5. When the input voltage is reduced to zero in a closed loop configuration the circuit acts as
a) Inverting amplifier
b) Non-inverting amplifier
c) Inverting and non-inverting amplifier
d) None of the mentioned

6. Find the input offset voltage for the circuit shown

a) Vio = (Rb*Vmax)/( Rmax+ Rb+ Rc)
b) Vio = Rmax/( Rmax+ Rb+ Rc)
c) Vio = (Rc*Vmax)/( Rmax+ Rb+ Rc)
d) Vio = Vmax/( Rmax+ Rb+ Rc)

7. Why does an op-amp without feedback is not used in linear circuit application?
a) Due to high current gain
b) Due to high voltage gain
c) Due to high output signal
d) All of the mentioned

8. How the value of output offset voltage is reduced in closed loop op-amp?
a) By increasing gain
b) By reducing gain
c) By decreasing bandwidth
d) By reducing bandwidth 5 Star
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