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Why are electrons in a cathode ray tube deflected by magnetic and electric fields?
By nature electrons are charged particles (with a -1 charge). Also there's an established relationship between electricity, which involves the flow of electrons, and magnetism, known as electromagnetism. Ampere's right-hand rule suggests the magnetic field moves in a corkscrew direction perpendicularly in reference to the direction of the flow of electrons (electrical current).
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A cathode ray produced in a gas-filled tube is deflected by a magnetic field A wire carrying an electric current can be pulled by a magnetic field A cathode ray is deflected away from a negatively?
A cathode ray in a gas-filled tube is deflected by a magnetic field due to the Lorentz force acting on the charged particles in the ray. A wire carrying an electric current can be pulled by a magnetic field through the interaction of the magnetic field and the moving charges in the wire. A cathode ray is deflected away from a negatively charged object due to the repulsion between the negatively charged object and the negatively charged particles in the cathode ray.
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.
What is the evidence that show cathode rays consists of charged particles?
One piece of evidence is the observation that cathode rays are deflected by electric and magnetic fields, indicating they carry charge. Further evidence comes from the fact that cathode rays produce X-rays when striking a target, which is consistent with the behavior of charged particles like electrons. Additionally, the ratio of the charge to mass of the particles in cathode rays was found to be the same as that of electrons.
What is the relationship between the cathode and anode in an electrochemical cell?
In an electrochemical cell, the cathode is where reduction occurs, while the anode is where oxidation occurs. The cathode and anode are connected by an external circuit, allowing for the flow of electrons from the anode to the cathode. This flow of electrons generates an electric current in the cell.
What is the relationship between the ecathode and eanode in an electrochemical cell?
In an electrochemical cell, the cathode is where reduction occurs, while the anode is where oxidation occurs. The cathode and anode are connected by an external circuit, allowing the flow of electrons from the anode to the cathode. This flow of electrons generates an electric current in the cell.
A cathode ray produced in a gas-filled tube is deflected by a magnetic field A wire carrying an electric current can be pulled by a magnetic field A cathode ray is deflected away from a negatively?
A cathode ray in a gas-filled tube is deflected by a magnetic field due to the Lorentz force acting on the charged particles in the ray. A wire carrying an electric current can be pulled by a magnetic field through the interaction of the magnetic field and the moving charges in the wire. A cathode ray is deflected away from a negatively charged object due to the repulsion between the negatively charged object and the negatively charged particles in the cathode ray.
How did thomas discover the electron?
J. J. Thomson discovered the electron using an experiment involving cathode rays and a magnetic field. When subjected to the magnetic field, the cathode ray was deflected. If the magnetic field was flipped, the cathode ray was deflected in the opposite direction. This proved that a cathode ray was a stream of negatively charged particles that would later be deemed electrons.
What is the function of anode in cro?
In a cathode ray oscilloscope (CRO), the anode serves to accelerate the electrons emitted by the cathode towards the screen at the other end of the tube. This acceleration helps to produce a focused beam of electrons which can then be deflected by the electric or magnetic fields to create an image on the screen.
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.
How did JJ Thomson know that the particles in the cathode-ray tube were negatively charged?
They are found to be deflected by electric and magnetic field in the specific direction in which a negatively charged particle would get deflected.
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 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.
What is the effect of electric field on cathode rays?
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.
What is the evidence that show cathode rays consists of charged particles?
One piece of evidence is the observation that cathode rays are deflected by electric and magnetic fields, indicating they carry charge. Further evidence comes from the fact that cathode rays produce X-rays when striking a target, which is consistent with the behavior of charged particles like electrons. Additionally, the ratio of the charge to mass of the particles in cathode rays was found to be the same as that of electrons.
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 does a cathode ray consists of?
A cathode ray consists of a stream of electrons generated by heating a cathode. These electrons are accelerated and focused by electric and magnetic fields before hitting a phosphorescent screen to produce a visible image.
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.
