Q.1
The temperature of a thermistor increases, when the value of its resistance
  • a) Remain constant
  • b) Increase
  • c) Decrease
  • d) Depends on the heating material
Q.2

Questionlinear-integrated-circuits-questions-answers2.jpg
  • a) 4.95v
  • b) 1.65v
  • c) 8.25v
  • d) 14.85v
Q.3
Consider a thermistor having the following specifications: RF=150kΩ at a reference temperature of 35oC and temperature coefficient of resistance = 25oC. Determine the change in resistance at 100oC.
  • a) -1.625MΩ
  • b) 9.75MΩ
  • c) 4.78MΩ
  • d) None of the mentioned
Q.4
Consider the given bridge circuit, find the voltage across the output terminal, Vab.
Questionlinear-integrated-circuits-questions-answers4.jpg
  • a) Vab = 4.9v
  • b) Vab = -5.6v
  • c) Vab =1.2v
  • d) Vab =-8.2v
Q.5
Express the equation for transducer bridge, if all the resistor values are equal
  • a) v=-(△R×Vdc)/(2×R+△R)
  • b) v=-(△R×Vdc)/2×(R+△R)
  • c) v=-Vdc/[2×(2×R+△R)].
  • d) v=-(△R×Vdc)/ [2×(2×R+△R)].
Q.6
Which type of thermistor is chosen for temperature measurement and control?
  • a) High temperature coefficient of resistance
  • b) Low temperature coefficient of resistance
  • c) Positive temperature coefficient of resistance
  • d) None of the mentioned
Q.7
Photo conductive cell changes it resistance with
  • a) Change in temperature
  • b) Material composition
  • c) Incident radiant energy
  • d) Change in elasticity
Q.8
What will be the resistance of a photoconductive cell in darkness?
  • a) 1000-3000Ω
  • b) 100MΩ
  • c) 250-500Ω
  • d) None of the mentioned
Q.9
Which material is used for photoconductive cells?
  • a) Germanium
  • b) Cadmium sulphide
  • c) Lithium
  • d) Phosphorous
Q.10
Name the resistive transducer that varies its resistance on application of external stress?
  • a) Photocells
  • b) Light dependent
  • c) Stain gage
  • d) None of the mentioned
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