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Consider the following statements for piezoelectric materials: 1. All piezoelectric materials are ferroelectric materials also. 2. Piezoelectric materials have a high value of dielectric constant. Which of the above statements is/are correct?
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 5g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 6g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 16.67g Density of crystal is d= 5g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 2g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 1g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 4g/m3 Area of crystal A= 10m2
Find out the characteristic crystal length if Mass of the crystal m= 10g Density of crystal is d= 9g/m3 Area of crystal A= 10m2
A _________ crystal is a part of a sensor which primarily works using the principle of oscillation changes because of the mass bound to the surface of the piezoelectric crystal.
Consider the following statements in connection with deflection-type and null-type instruments: 1. Null-type instruments are more accurate than the deflection-type ones. 2. Null-type of instrument can be highly sensitive compared to a deflection-type instrument. 3. Under dynamic conditions, null-type instruments are less preferred to deflection-type instruments. 4. Response is faster in null-type instruments as compared to deflection-type instruments. Which of the above statements are correct?