Question 2
Marks : +2 | -2
Pass Ratio : 100%
For a material capacitance increases with _____________
Explanation: Capacitance can be represented as C=ε0εrA / d
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Which of the following is correct for moisture transducers?
Explanation: Dielectric constant of pure water is 80 which is much greater than other materials, this characteristic helps in measurement of moisture content.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
Capacitive transducers can be used by _______________
Explanation: Capacitance of a material is affected by area and distance of separation of plates and dielectric material.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
Which of the following device is used for measuring relative humidity?
Explanation: Hygrometers are special devices, which are applicable for measuring the relative humidity of a medium.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
Capacitive microphone is an application of ______________
Explanation: In microphone electric signals are produced according to pressure variations caused by acoustic waves, which can be easily measured by displacement transducer.