0
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 else can I help you with?
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.
An electric current cannot be used to deflect a compass needle?
An electric current can be used to deflect a compass needle. When an electric current flows through a conductor, it generates a magnetic field around it, which can interact with the magnetic field of the compass needle, causing it to deflect. This principle is the basis for electromagnetism.
How does an electric current in a wire deflect with electricity and magnetism?
When an electric current flows through a wire, it creates a magnetic field around the wire. If this wire is placed in the presence of another magnetic field, the two fields can interact, causing the wire to deflect. This phenomenon is known as the magnetic deflection of an electric current.
Can a electric current be used to deflect a compass needle?
Yes, an electric current can generate a magnetic field that can deflect a compass needle. This phenomenon is known as electromagnetism and is the basis for how devices such as electromagnets and speakers work.
Can an electric current be used to deflect a compass needle?
Yes, an electric current can create a magnetic field that can deflect a compass needle. This phenomenon is known as the Oersted Effect and demonstrates the relationship between electricity and magnetism.
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.
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 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.
An electric current cannot be used to deflect a compass needle?
An electric current can be used to deflect a compass needle. When an electric current flows through a conductor, it generates a magnetic field around it, which can interact with the magnetic field of the compass needle, causing it to deflect. This principle is the basis for electromagnetism.
How does an electric current in a wire deflect with electricity and magnetism?
When an electric current flows through a wire, it creates a magnetic field around the wire. If this wire is placed in the presence of another magnetic field, the two fields can interact, causing the wire to deflect. This phenomenon is known as the magnetic deflection of an electric current.
Can a electric current be used to deflect a compass needle?
Yes, an electric current can generate a magnetic field that can deflect a compass needle. This phenomenon is known as electromagnetism and is the basis for how devices such as electromagnets and speakers work.
Can an electric current be used to deflect a compass needle?
Yes, an electric current can create a magnetic field that can deflect a compass needle. This phenomenon is known as the Oersted Effect and demonstrates the relationship between electricity and magnetism.
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.
Why does a current carrying wire deflect a magnetic compass?
A current-carrying wire generates a magnetic field around it due to the flow of electric charges. When the wire is placed near a magnetic compass, the magnetic field produced by the wire interacts with the magnetic field of the compass needle, causing the needle to deflect and align with the direction of the wire's magnetic field.
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.
Can electromagnetic wave deflect by electric or magnetic field?
Yes, electromagnetic waves can be deflected by electric or magnetic fields. The direction and magnitude of the deflection depend on the orientation and strength of the field relative to the direction of the wave propagation. This phenomenon is the basis for technologies such as antennas and magnetic resonance imaging (MRI).
Can an electric current be used to affect a compass needle?
Yes, an electric current can affect a compass needle because it creates a magnetic field. When the electric current flows through a wire, it generates a magnetic field around the wire, which can deflect the compass needle and change its direction.
