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Why is magnetic field used to deflect electron beam and not an electric field in a television picture tube?
Wiki User
∙ 6y ago
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.
Wiki User
∙ 6y ago
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Can electromagnetic wave deflect by electric or magnetic field?
No. An electromagnetic wave IS electric and magnetic fields.
What microscope uses a magnetic field?
That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.
Can a electric current be used to deflect a compass needle?
Yes,
Can an electric current be used to deflect a compass needle?
Yes.
Is electric field can deflect y-rays?
As gamma rays are neutral it cannot be deflected by electric field.
How is the electron beam in a TV picture tube deflected?
four coils are used to create a magnetic field to deflect the electron beam in two dimensions.
Can electromagnetic wave deflect by electric or magnetic field?
No. An electromagnetic wave IS electric and magnetic fields.
What is used to bend electrons in an electron microscope?
Magnetic lenses are used to control the electron beam in an electron microscope. The magnetic field produced by the magnetic lenses deflects the energetic electrons. They are typically called magnetic lenses because they deflect the electron beam like optical lenses deflect light.
What microscope uses a magnetic field?
That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.That would be an electron microscope - the magnets are used to deflect the electron beam.
What type of field would deflect alpha and beta particles?
A magnetic field would deflect both alpha and beta particles, as would a charged electric field.
What type of a magnet do televisions use?
CRT style televisions use an electromagnet, called the "Yoke", on the neck of the CRT in order to deflect the electron beam.
How do you show that electric current causes magnetism?
Put a wire carrying an electric current near a compass and it causes the needle to deflect.
What did john Thomson use to deflect the cathode rays?
he dint did nething to deflect them thet went straight to the anode +ve of the tube becoz opposite attracts.
What is a CRT monitore?
Its Short for Cathode Ray Tube and is a vacuum tube inside the computer monitor containing electrons a with internal or external means to accelerate and deflect the electron beam. Its designed like a television box.
What deflects the ions?
In a mass spectrometer, the magnetic field is used to deflect ions.
Can a electric current be used to deflect a compass needle?
Yes,
Can an electric current be used to deflect a compass needle?
Yes.
