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What would happen if an electric current were passed through a piezoelectric crystal?
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The flow of electrons through a conductor is called?
electric current
What happen when electric current is passed through water'?
when electric current is passed through acidified water hydrogen gas is released at the cathode..
Can moving electrons through a magnetic field can produce an electric current?
Electrons moving is an electric current. An electric current moving at an angle to a magnetic field will produce a Force.
What metal doesn't change when electricity goes through it?
Electric current is a flow of electric charge through a medium
Can electric current pass through iron oxide?
no.
What happends when an electric current passed through a piezoelectric crystals?
They physically change shape.
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 is the surface area of piezoelectric crystal?
All the (pairs of ) surfaces of a piezoelectric crystal do not have the same piezo properties. And the temperature coefficient also alters at different angles through the crystal. So commonly, the 'BT' cut is the one with the lowest temperature coefficient.
Explain the working of piezeoelectric oscillator?
A piezo-electric material is one who's physical dimensions (size) noticeably change when a current is passed through it. So if an AC (alternating current) is passed through a piezo-electric material, it itself alternates, or oscillates. This type of material is exploited in Electron Microscopes and Atomic Force Microscopes, which is how they are able to get such small, yet precise images.
What is the continuous flow of electric charges through a material?
Yes, an electric current is the flow of charged particles.
The flow of electrons through a conductor is called?
electric current
What are electromagents?
Magnets that are turned on by passing an electric current through them, and turned off by not allowing an electric current through them.
Why steel becomes a permanent magnet after electric current is passed through it?
Electric current is magnetic so when electric current pass through steel , steel will have the electric power and may be magnetic for awhile
How generates ultrasonic?
The sound,or sound waves, with frequency higher then human hearing span are called ultrasound. The healthy human ear can usualy hear up to 20kHz. Ultrasound is produced and detected using an ultrasound transducer. Ultrasound transducers are capable of sending an ultrasound and then the same transducer can detect the sound and convert it to an electrical signal to be diagnosed. To produce an ultrasound, a piezoelectric crystal has an alternating current applied across it. The piezoelectric crystal grows and shrinks depending on the voltage run through it. Running an alternating current through it causes it to vibrate at a high speed and to produce an ultrasound. This conversion of electrical energy to mechanical energy is known as the piezoelectric effect. The sound then bounces back off the object under investigation. The sound hits the piezoelectric crystal and then has the reverse effect - causing the mechanical energy produced from the sound vibrating the crystal to be converted into electrical energy. By measuring the time between when the sound was sent and received, the amplitude of the sound and the pitch of the sound, a computer can produce images, calculate depths and calculate speeds.
How does telecommunication take place?
If you took a telephone apart you would find in the mouth piece a Piezoelectric Transducer. Inside of that you would find a piezoelectric crystal. This crystal, when put under pressure or subjected to vibrations will produce a very tiny electric current and also change size (in the nanometer range which is 1 billionth of a meter). This very minute change of dimensions ,in relation to the vibrations of our voices, allows us to build a sensor to detect these changes and turn it into an electrical 1 and 0 binary code pulse. These pulses can then be sent through the wire (or wireless now:) and into the base unit. This then goes through your telecommunication provider's infrastructure, be it ground or space based. Now those electric pulses can be directed to the number you have dialed and the person who speaks back to you starts the same process again.
What happen when electric current is passed through water'?
when electric current is passed through acidified water hydrogen gas is released at the cathode..
What kills you when you get an electric shock?
electric current through your nerves and/or muscles, especially through your heart
