Capacitive Transducer

This set of Electrical Measurements & Measuring Instruments Multiple Choice Questions & Answers (MCQs) focuses on “Capacitive Transducer”.

1. Capacitance of a parallel plate capacitor is ________
a) C = A∈d
b) C = d
c) C = Ad
d) C = A

2. A capacitive transducer works on the principle of ________
a) inductance
b) capacitance
c) resistance
d) reluctance

3. Capacitance of a cylindrical capacitor is given by which of the following relation?
a) C = ∈lln(Rr)
b) C = 2πlln(Rr)
c) C = 2π∈lln(Rr)
d) C = 2π∈ln(Rr)

4. Capacitance can be varied in ________
a) 10 ways
b) 6 ways
c) 2 ways
d) 4 ways

5. Capacitive pressure transducer uses distance of separation for sensing the capacitance.
a) True
b) False

6. Capacitive transducer displays ________
a) linear behaviour
b) non-linear behaviour
c) exponential behaviour
d) tangential behaviour

7. Frequency response of capacitive transducers is ________
a) high
b) medium
c) low
d) zero

8. What is the relation between capacitance and output impedance?
a) proportional to square
b) constant
c) directly proportional
d) inversely proportional

9. What is the relation between capacitance and input impedance?
a) directly proportional
b) constant
c) proportional to square
d) inversely proportional

10. Composite capacitance consists of _________
a) one dielectric medium
b) more than one dielectric medium
c) five dielectric media
d) ten dielectric media

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