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Linear Integrated Circuits
Linear Integrated Circuits Tricky
Quiz 1
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Q.1
Determine the relationship between log-antilog method.
a) lnVx×lnVy = ln(Vx+Vy)
b) lnVx / lnVy = ln(Vx-Vy)
c) lnVx -lnVy = ln(Vx/Vy)
d) lnVx+ lnVy = ln(Vx×Vy)
Q.2
Which circuit allows to double the frequency?
a) Frequency doubler
b) Square doubler
c) Double multiplier
d) All of the mentioned
Q.3
Compute the output of frequency doubler. If the inputs Vx = Vsinωt and Vy = Vsin(ωt+θ) are applied to a four quadrant multiplier?
a) Vo= { Vx×Vy× [cosθ-(cosθ×cos2ωt)+(sinθ×sin2ωt)]}/ Vref
b) Vo= { Vx×Vy× [cosθ-(cosθ×cos2ωt)+(sinθ×sin2ωt)]}/ 2
c) Vo= { Vx×Vy× [cosθ-(cosθ×cos2ωt)+(sinθ×sin2ωt)]}/(2×Vref)
d) Vo= – { Vx×Vy× [cosθ-(cosθ×cos2ωt)+(sinθ×sin2ωt)]}/(2×Vref)
Q.4
How to remove the dc term produced along with the output in frequency doubler?
a) Use a capacitor between load and output terminal
b) Use a resistor between load and output terminal
c) Use a Inductor between load and output terminal
d) Use a potentiometer between load and output terminal
Q.5
Find the voltage range at which the multiplier can be used as a squarer circuit?
a) 0 – Vin
b) Vref – Vin
c) 0 – Vref
d) All of the mentioned
Q.6
Calculate the output voltage of a squarer circuit, if it input voltage is 3.5v. Assume Vref = 9.67v.
a) 2.86v
b) 1.27v
c) 10v
d) 4.3v
Q.7
Which circuit can be used to take square root of a signal?
a) Divider circuit
b) Multiplier circuit
c) Squarer circuit
d) None of the mentioned
Q.8
Find the output voltage of squarer circuit?
a) Vo = √( Vref/|Vin|)
b) Vo = √( Vref×|Vin|)
c) Vo = √( Vref2×|Vin|)
d) Vo = √( Vref×|Vin|2)
Q.9
Find the current, IL flowing in the circuit given below
a) IL = 1.777mA
b) IL = 1.048mA
c) IL = 1.871mA
d) None of the mentioned
Q.10
A square root circuit build from multiplier is given an input voltage of 11.5v. Find its corresponding output voltage?
a) 11v
b) 15v
c) 13v
d) Cannot be determined
0 h : 0 m : 1 s
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