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If the incident direction of an electron entering a magnetic field is?
Wiki User
∙ 9y ago
If the incident direction of an electron is right, The electron travels a measured distance along the pathÊ prior to exiting the magnetic field.
Wiki User
∙ 9y ago
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The force on an electron moving in a magnetic field will be the largest when its direction is?
perpendicular to the magnetic field direction
How can you detect direction of magnetic field in electron spin resonance?
Certain minerals can record the direction and intensity of the field as it has changed over geological time. Remnant magnetism in samples are measured to plot location of the magnetic pole in the past.
What is the left hand rule for conductors?
The left hand rule for conductors says that your fingers will point in the direction of the resulting magnetic field. The magnetic field is produced by the electron flow.
What is the field surrounding every moving electron?
An electron is surrounded by an electric field. The electron is negatively charged. A moving electric charge creates a magnetic field. Use the "right-hand rule". Point your thumb up and curl your finger a bit so your hand looks like it is holding a bottle. If the electric charge (e.g. electron) is moving in the direction of your thumb, then the magnetic field it creates moves counter-clockwise in the direction of your fingers.
Is the direction of electron beams in a CRT is controlled by electric field?
Practically speaking electron beam is controlled by magnetic field produced by passing electric current through yoke coil.
The force on an electron moving in a magnetic field will be the largest when its direction is?
perpendicular to the magnetic field direction
What happens to a positron when it encounters a magnetic field?
just like an electron, its path curves but in the opposite direction.
What is the direction of the magnetic field if the current is directed upward or downward?
The direction of the magnetic field is counterclockwise or clockwise. For a current flowing in a wire you can use the "left hand rule" If you take your left hand and have the thumb point in direction of electron flow in the wire, the fingers wrapped around the wire will show the direction of the magnetic field by the direction the fingers are pointed..
When cathode rays are passed through a magnetic field which pole do they deflect towards north or south and why?
Cathode rays are electron beams. When they are moving in a magnetic field, they are deviated. The direction of their deflection is given by Fleming's left hand rule. The direction of deflection, current (which is the reverse of the direction of the electron beams) and field are all perpendicular to each other. Hence, the electron beam will deviate in a direction contained in a plane which is perpendicular to both the field and the electron beam. Hence, the cathode rays are neither defleted to the north nor south pole.
A proton and an electron have the same kinetic energy upon entering a region of constant magnetic field What is the ratio of the radii of their circular paths?
42.8
How can you detect direction of magnetic field in electron spin resonance?
Certain minerals can record the direction and intensity of the field as it has changed over geological time. Remnant magnetism in samples are measured to plot location of the magnetic pole in the past.
What is the left hand rule for conductors?
The left hand rule for conductors says that your fingers will point in the direction of the resulting magnetic field. The magnetic field is produced by the electron flow.
What is the field surrounding every moving electron?
An electron is surrounded by an electric field. The electron is negatively charged. A moving electric charge creates a magnetic field. Use the "right-hand rule". Point your thumb up and curl your finger a bit so your hand looks like it is holding a bottle. If the electric charge (e.g. electron) is moving in the direction of your thumb, then the magnetic field it creates moves counter-clockwise in the direction of your fingers.
Is the direction of electron beams in a CRT is controlled by electric field?
Practically speaking electron beam is controlled by magnetic field produced by passing electric current through yoke coil.
Why do electrons in a uniform magnetic field travel in a circular path?
It's because of how magnetic force is. The magnetic force is always perpendicular to both the magnetic field and the velocity of the electron, or any charged particle. If you draw x's on a piece of paper, representing the direction of the magnetic field into the paper, then draw a short vertical line up, representing the electron velocity, the magnetic force will be horizotal to the right. This causes the velocity to change direction a little toward the right. But now the force must change direction a little, etc., etc, until you get a circular path. BTW, you only get a circular path if the initial velocity is in the plane of the paper, perpendicular to the field. If the electron comes in at an angle from outside the paper the path will be a "screw" shape, circular and forward at the same time.
Why does moving the magnetic field past the wire induce a voltage?
A good question. When an electron is moved, it will generate a magnetic force. In a permanent magnet, there are a 'magnetic domains' in which a number of electrons have similar spin direction. In an electromagnet, there are, by definition, a number of electrons moving in the same direction. If you do not have a moving electron, you do not have a magnetic field! From this statement, you may deduce that the amazing magnetic loops on the Sun, are generated by currents flowing inside the Sun.
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.
