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Why is magnetic field used to deflect electron beam and not an electric field in a television picture tube?
if electric field is used then we have to apply a very high voltage ,or we may require a very long tube.however ,if a magnetic field is used ,even a small field can produce large deflection ,on the other hand ,the required size of the picture tube will be highly reduced .due to this reason,the magnetic field is uesd to deflect the electron beam in T.V. insted of the electric field.
Why is quartz used in piezoelectric transducer?
Quartz is used in piezoelectric transducers because of potential for high voltage input and acoustic power. Quartz is a piezoelectric crystal and when it is mechanically strained or deformed by stress, electric charges appear on some surfaces. When the strain is reversed, the polarity of the charges reverse. This allows vibration of quartz crystals to be transformed into electric pulses.
What is pt beam?
PT Beam is an initial for Post-Tensional beam. PT beams are slabs that are flat or ribbed and are normally used in construction of a building's foundation.
What is a balance beam and how is it used in a laboratory?
dextors labatory
What is the term used to describe the build up of electrical charges on an object due to friction?
The term used to describe the build up of electric charge on a non-conductive material due to friction is static electricity.
Which scientist used the cathode ray tube to isolate the electron in 1897?
J.J. Thomson used the cathode ray. Thomson's cathode ray experiment was when he shot a narrow beam of electrons through a cylindrical tube and deflected the electrons off of electric and magnetic fields, thus measuring the effects that those fields had on the direction of the beam.
What can be used to absorb electric charges?
seeds
What is a material that readily allows electric charges to pass through it?
Copper is very good conductor of electric charge. That is why it is invariably used in the electric motors.
What is the Difference between dielectric and insulator?
The difference between dielectric and insulator lies in its field of application.Dielectrics are used to store the electric charges, while insulators are used to block the flow of electric charges ( they more or less act like a wall).While all dielectrics are insulators (they don't allow the flow of electric charges through them) all insulators aren't dielectric because they can't store charges unlike dielectrics.
What are some real life examples of electric charge?
Static electricity, lightning, and the electricity used to power appliances are all electric charges.
What is example of beam matter?
Perhaps a simple example is in electric arc welding, where the electric arc is used to transfer the metal from the welding rod onto the workpiece. You may consider the arc (plasma) to be a type of beam, though it only operates over a small distance.
Who used a cathode ray tube to study matter?
you may wonna check this but i believe it was j.j Thomson
What process can be used to visualize the electric field between two charges?
You can use Conformal Mapping-see the related link.
Why is magnetic field used to deflect electron beam and not an electric field in a television picture tube?
if electric field is used then we have to apply a very high voltage ,or we may require a very long tube.however ,if a magnetic field is used ,even a small field can produce large deflection ,on the other hand ,the required size of the picture tube will be highly reduced .due to this reason,the magnetic field is uesd to deflect the electron beam in T.V. insted of the electric field.
What are the two electric charges?
There are two types of charges: positive charges and negative charges. Positive charges are immobile, and are found inside the nuclei of atoms as Protons. Negative charges can be mobile, and have the source of electrons. These orbit the nuclei of atoms, and can be stripped from the atoms to be used as mobile charged through conductors, such as electricity moving through wires.
How do charge and electric force are used by car makers to paint cars that help the environment?
According to the law of electric charges,opposite charges attract and like repel. therefore, An electrical charge is placed on the part being painted, an opposite charge on the paint sprayer. Since opposite charges attract, paint droplets are drawn to the object being painted.
How can electricity be used to make a magnet?
Any time there is ANY flow of electric charges (any current), the current will be surrounded by a magnetic field.
