A piezoelectric crystal 1cm2 in area and 0.1cm thick has been subjected to a force. Two metal electrodes measure the changes in the crystal. Young’s modulus of the material = 9×1010Pa. Charge sensitivity is 2pC/N, relative permittivity 5, and the applied force is 0.01N.
Find the voltage across the electrodes.
Find the change in crystal thickness.
What will be an ideal response?
Use the equations:
For the calculation of change in thickness, use the formula,
You might also like to view...
What would you say about the code values for numbers of plumbing fixtures that must be installed in buildings?
A) Reduced numbers would generally be adequate, but not allowed. B) They are sufficient based on years of industry experience. C) Designing for higher fixture counts is usually advisable.
A(n) ____ landfill is used when waste is placed at or nearly at the normal soil level
A) multigrade B) canyon fill C) trench fill D) at-grade
Which of the following impacts of the Great War hit Russians particularly hard?
a. savings erosion b. price inflation c. food shortages d. forced migration
Presses and pullers are often required for complete disassembly.
a. true b. false