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Who is the inventor of the loudspeaker?
Name: Johann Phillip Reis-1st loudspeaker Name: Alexander Graham Bell - Electric loudspeaker
What is a advantage and disadvantage conductors of electricity?
An advantage of conductors of electricity is that they allow the flow of electric current, making them essential for creating electrical circuits and transmitting electricity. A disadvantage is that they can also present a safety hazard if not properly insulated or if the current flowing through them is too high, leading to potential electric shock or overheating.
What does a loudspeaker use to turn electric energy into sound?
magnets!
What is piezoelectric crystal?
A piezoelectric crystal is a material that can generate an electric charge when mechanical stress is applied to it, or deform when an electric field is applied to it. It is commonly used in sensors, transducers, and actuators in various electronic devices and applications.
Advantage and disadvantage for electric typewriter?
It saves energy It is faster than manual typewriter It has memory It has soft bottons It is portable
What would happen if an electric current were passed through a piezoelectric crystal?
When an electric current is passed through a piezoelectric crystal, it will cause the crystal to deform or vibrate due to the inverse piezoelectric effect. This effect converts electrical energy into mechanical movement, causing the crystal to physically change shape. This property is utilized in devices such as piezoelectric sensors, actuators, and transducers.
How can we convert sound to electricity efficiently?
One way to efficiently convert sound to electricity is by using a device called a piezoelectric transducer. This device can convert sound waves into electrical energy by utilizing the piezoelectric effect, where certain materials generate an electric charge when subjected to mechanical stress. By placing the transducer in an area with high sound intensity, such as near a loudspeaker or in a noisy environment, it can efficiently generate electricity from the sound waves.
What happends when an electric current passed through a piezoelectric crystals?
When an electric current is passed through a piezoelectric crystal, the crystal experiences mechanical deformation or vibrations due to the inverse piezoelectric effect. This effect causes the crystal to change shape or generate vibrations in response to the electrical input. Conversely, when the crystal is mechanically stressed, it generates an electric charge along its surface due to the direct piezoelectric effect. This dual behavior allows piezoelectric crystals to convert electrical energy into mechanical motion and vice versa.
Are there any materials that undergo strong contraction when an electric current is introduced?
Yes, all piezoelectric materials exhibit the reverse piezoelectric effect. A piezoelectric material is one that generates an electric field or electric potential in response to applied mechanical stress. Therefore, in the reverse case, passing an electric current through the material or an electric potential across the material, will cause it to contract or elongate, depending on the direction of the current. One of the best example of this is lead zirconate titanate which will contract/elongate up to about 0.1% of the original dimensions.
What does the squeezing from pressure do to the rocks crystal grains?
This is called piezoelectric. The pressure causes an electric charge.
What happens if an electric current were passed through the piezoelectric describe an application for this phenomenon?
If an electric current is passed through a piezoelectric material, it will cause the material to deform or produce mechanical vibrations. An application of this phenomenon is in piezoelectric sensors, where the electrical signal generated by the material's deformation is detected and used for various purposes such as pressure sensing, ultrasonic transducers, and touch screens.
What are piezoelectric substances?
Piezoelectric substances are materials that generate an electric charge when mechanical stress is applied to them. This property allows them to convert mechanical energy into electrical energy and vice versa. Common examples of piezoelectric substances include quartz, ceramics, and certain crystals.
