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A cathode ray is nothing but a stream of negatively charged electrons. If electrons are moving through an electric or a magnetic field, they will be deflected.
In the case of an electric field, the cathode ray would be deflected toward a positive plate and/or away from a negative plate. This follows the fundamental principle of electrostatics wherein opposite charges attract and like charges repel. In the case of a magnetic field, we have to apply Fleming's left hand rule to know about the direction of deflection of cathode ray. Note that the electrons must move across the magnetic lines of force, and not along them for the field to act on the moving charges and deflect them.
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Are cathode rays deflected toward a negatively charged plate in an electric field?
Yes, cathode rays are deflected towards a positively charged plate in an electric field. The negatively charged particles in the cathode rays are attracted to the positive plate, causing the deflection.
What are cathode rays made from?
Cathode rays are a stream of electrons originating from cathode and moving to an anode, when high voltage electric potential is applied to the electrodes sealed in a glass tube containing gas at low pressure.Cathode rays are stream of negativley charged electrons getting detached right from neutral molecues due to high voltage and driven right from cathode to anode.
What are the factors that affect for deflection of cathode rays towards magnetic and electric field?
The electron is a charged particle and can be attracted and repelled by a magnetic field. In a CRT the magnetic field is generated by coils around the neck of the tube. A voltage applied to the coils,will turn them into electromagnets. The coils are supplied with a varying voltage from electronic circuits. The waveform is usually a 'sawtooth', which rises slowly and then returns to '0' rapidly. This will cause the electron beam to move across the screen and then return back to the beginning. Two sets of coils are provided horizontally and vertically. This arrangement allows for the beam to scan across the screen, producing lines, moving progressively downward, making a field.
Is gamma radiation stopped by an electric field?
No, gamma rays are not stopped by an electric field.
Are anode rays emitted from anode?
There are no rays assign as anode rays (cathode rays are there in a discharge tube) but during discharge tube experiment positive rays are observed which are generated by decomposition of gaseous molecules present in the tube. X-rays are produced by striking of cathode rays with anode so x-rays may be called as anode rays.
How was the electric field used to determine the charge of the cathode ray?
The electric field was used to deflect the cathode rays in a cathode ray tube. By measuring the amount of deflection and knowing the strength of the electric field, the charge-to-mass ratio of the particles in the cathode rays could be calculated. This allowed for the determination of the charge of the particles in the cathode ray.
Are cathode rays deflected toward a negatively charged plate in an electric field?
Yes, cathode rays are deflected towards a positively charged plate in an electric field. The negatively charged particles in the cathode rays are attracted to the positive plate, causing the deflection.
What did Thomson conclude about the particles in cathode?
The immaterial nature and the aetherial hypothesis of cathode rays were proved wrong by J. J. Thomson. He concluded that the rays were comprised of particles. His entire works can be divided into three different experiments. In the first, the magnetic effect on cathode rays was studied while in the second, the rays were deflected by an electric field.
What did Thomson conclude about the particles in cathode rays?
Thomson concluded that cathode rays are made up of negatively charged particles, which he called electrons. He determined that these electrons are a fundamental component of matter and have a much smaller mass compared to atoms.
How magnetic field is related with cathode rays in physics?
Cathode rays are negatively charged particles that move in curved paths in the presence of a magnetic field. The direction and curvature of the cathode rays can be controlled by adjusting the strength and orientation of the magnetic field. This phenomenon is known as the magnetic deflection of cathode rays and is used in devices like cathode ray tubes.
How do negatively charged plates affect the path of cathode rays?
Negatively charged plates will attract cathode rays, causing them to bend or deflect towards the plates. The extent of the bending will depend on the strength of the electric field between the plates and the voltage applied across them.
What are cathode rays made from?
Cathode rays are a stream of electrons originating from cathode and moving to an anode, when high voltage electric potential is applied to the electrodes sealed in a glass tube containing gas at low pressure.Cathode rays are stream of negativley charged electrons getting detached right from neutral molecues due to high voltage and driven right from cathode to anode.
Why cathode rays are negatively charged?
Cathode rays are negatively charged because they are composed of electrons, which have a negative charge. When a high voltage is applied to the cathode in a vacuum tube, electrons are emitted from the cathode and accelerated towards the anode, creating a beam of negatively charged particles known as cathode rays.
What are the factors that affect for deflection of cathode rays towards magnetic and electric field?
The electron is a charged particle and can be attracted and repelled by a magnetic field. In a CRT the magnetic field is generated by coils around the neck of the tube. A voltage applied to the coils,will turn them into electromagnets. The coils are supplied with a varying voltage from electronic circuits. The waveform is usually a 'sawtooth', which rises slowly and then returns to '0' rapidly. This will cause the electron beam to move across the screen and then return back to the beginning. Two sets of coils are provided horizontally and vertically. This arrangement allows for the beam to scan across the screen, producing lines, moving progressively downward, making a field.
What would happen to cathode rays in a vacuum?
Cathode rays in a vacuum would travel until stopped (or deflected by an electromagnetic field).
What experiment did jj Thompson do?
J. J. Thomson observed that cathod rays are deflected by an electric field - and from this discovered the electron.
What did scientist conclude from the fact that when an electrical current passed through a glass tube caused the surface of the tube directly across from the cathode to glow?
Scientists concluded that the glow observed on the surface of the tube opposite the cathode was due to the presence of rays emitted from the cathode. These rays were later identified as electrons, leading to the discovery of cathode rays and the development of cathode ray tubes. This phenomenon provided important insights into the behavior of charged particles in the presence of an electric field.
