Multiplier and Divider – 1 MCQ’s

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This set of Linear Integrated Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Multiplier and Divider – 1″.

1. Match the list-I with list-II

List-IList-II
1. One quadrant multiplieri. Input 1- Positive, Input 2- Either positive or negative
2. Two quadrant multiplierii. Input 1- Positive, Input 2 – Positive
3. Four quadrant multiplieriii. Input 1- Either positive or negative, Input 2- Either positive or negative

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

2. What is the disadvantage of log-antilog multiplier?
a) Provides four quadrant multiplication only
b) Provides one quadrant multiplication only
c) Provides two and four quadrant multiplication only
d) Provides one, two and four quadrant multiplication only

3. Determine output voltage of analog multiplier provided with two input signal Vx and Vy.
a) Vo = (Vx ×Vx) / Vy
b) Vo = (Vx ×Vy / Vref
c) Vo = (Vy ×Vy) / Vx
d) Vo = (Vx ×Vy) / Vref2

4. An input of Vsinωt is applied to an ideal frequency doubler. Compute its output voltage?
a) Vo = [(Vx×Vy) /Vref2] × [1-cos2ωt/2].
b) Vo = [(Vx2×Vy2) /Vref] × [1-cos2ωt/2].
c) Vo = [(Vx×Vy)2 /Vref] × [1-cos2ωt/2].
d) Vo = [(Vx×Vy) /( Vref] × [1-cos2ωt/2].

5. Calculate the phase difference between two input signals applied to a multiplier, if the input signals are Vx= 2sinωt and Vy= 4sin(ωt+θ). (Take Vref= 12v).
a) θ = 1.019
b) θ = 30.626
c) θ = 13.87
d) θ = 45.667

6. Find the divider circuit configuration given below
a)
Find the complement of multiplication from the given diagram
b)
Find the multiplier circuit element from the given diagram
c)
Find the op-amp feedback loop from the given diagram
d) All of the mentioned

7. Find the output voltage for the squarer circuit given below, choose input frequency as 10kHz and Vref =10v

Find the output voltage for the given squarer circuit

a) Vo = 5.0-(5.0×cos4π×104t)
b) Vo = 2.75-(2.75×cos4π×104t)
c) Vo = 1.25-(1.25×cos4π×104t)
d) None of the mentioned

8. Express the output voltage equation of divider circuit
a) Vo= -(Vref/2)×(Vz/Vx)
b) Vo= -(2×Vref)×(Vz/Vx)
c) Vo= -(Vref)×(Vz/Vx)
d) Vo= -Vref2×(Vz/Vx)

9. Find the input current for the circuit given below.

Find the input current for the given circuit

a) IZ = 0.5372mA
b) IZ = 1.581mA
c) IZ = 2.436mA
d) IZ =9.347mA

10. Find the condition at which the output will not saturate?

Find the condition at which the output will not saturate

a) Vx > 10v ; Vy > 10v
b) Vx < 10v ; Vy > 10v
c) Vx < 10v ; Vy < 10v
d) Vx > 10v ; Vy < 10v

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