Related Questions

Quartz crystal is most commonly used in crystal oscillators because ___________
A It has superior electrical properties
B It is easily available
C It is quite inexpensive
D None of the above
The piezoelectric effect in a crystal is ___________
A A voltage developed because of mechanical stress
B A change in resistance because of temperature
C A change in frequency because of temperature
D None of the above
The materials which become polarized on the application of mechanical stress are called piezoelectric.
A True
B False
The crystal oscillator frequency is very stable due to ___________ of the crystal
A Rigidity
B Vibrations
C Low Q
D High Q
If the crystal frequency changes with temperature, we say that crystal has ___________ temperature coefficient
A Positive
B Zero
C Negative
D None of the above
Piezoelectric materials serve as a source of ________ .
A Resonant waves
B Musical waves
C Microwaves
D Ultrasonic waves
Piezoelectric is a material
A Whose properties is midway between the constituent materials
B Which gets polarised, when stressed
C In which magnetising force reduces when current flowing through it is in-cresed
D Which changes dimensions due to applied field
The application where one would most likely find a crystal oscillator is ___________
A Radio receiver
B Radio transmitter
C AF sweep generator
D None of the above
Collections of opals and quartz are featured at the City Museum's annual exhibition of precious stones.
A coins
B loot
C ornaments
D shells
Complete the analogous pair: QUARTZ: RADIO :: GYPSUM:?
A GLASS
B PORCELAIN
C CEMENT
D POWDER

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