Question

In kitchen applications a piezoelectric crystal is used for
(A) Skimming milk
(B) Lighting a gas stove
(C) Grinding
(D) mixing

Answer 1

Hint
We will first understand what is piezoelectric crystal and the main concept of piezoelectric crystal. Then we will understand the working principle of piezoelectric crystal, to find how it works. After that we will see the application of piezoelectric crystal and choose the correct option.

Complete step by step answer
The piezoelectric crystal is a small-scale energy resource. When these crystals are automatically deforming then they produce a tiny voltage which is known as piezoelectricity.
The main concept of these crystals is to provide Piezoelectricity in reply to applied automatic stress which can be reversible within the crystals.
The working of this crystal is whenever force is applied to the crystal then it generates the electricity. When an electromagnetic force applies on crystals, afterward the crystals begin vibrating otherwise demonstrate mechanical growth and reduction.
Since the pressure induced on the piezoelectric crystal creates an electrical signal leading to a spark and it will be induced when a force is felt on that sensor. Therefore, a piezoelectric lighter is used for lighting a gas stove in a kitchen application.
So, the correct option is (B).

Note
This kind of renewable energy cannot be suitable for industrial situations. Other applications of piezoelectric crystals are: piezoelectric-crystal energy source is to create a tiny motor. Also, the piezoelectric-crystals are embedded within the shoe sole of a shoe to generate electrical energy for every step.