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Define the use of quartz crystal method to detect ultrasonic waves.
Quartz crystal method:
This method is based onto the principle of Piezo-electric effect. While one pair of the opposite faces of a quartz crystal is representation to the ultrasonic waves, other pairs of opposite faces expanded opposite charges. Such charges are amplified and detected by using an electronic circuit.
Magnetic force on a moving charge Oersted also discovered that anytime a charge is moving in an area where a magnetic field exists, it experiences a force which is sometimes call
Awhat is angle of projection of body thrown from inclined plane of 37degree so that body hits inclined plane normalysk question #Minimum 100 words accepted#
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