Certain crystals produce electric signals on application of pressure .This phenomenon is called

Some polar crystals produce small electric current on heating . This phenomenon is called

Some polar crystals when heated produce small electrical current. The phenomenon is called

What is an electrical signal ?

The pressure of a physical barrier between stigma and stamen prevents autogamy. This phenomenon is called as

The pressure of a. Physical berries between stigma and stamen prevents autogamy. This phenomenon is called as

The deformation produced in an elastic body by the application of some external forces is called _____.

the electricity produced in a polar crystals when mechanical stress is applied on then is called….