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Crossed Electric & Magnetic Field Velocity Selector Video Lecture | Physics Class 12 - NEET

157 videos|453 docs|185 tests

FAQs on Crossed Electric & Magnetic Field Velocity Selector Video Lecture - Physics Class 12 - NEET

1. What is a crossed electric and magnetic field velocity selector?
Ans. A crossed electric and magnetic field velocity selector is a device used in physics experiments to select particles based on their velocity. It consists of two perpendicular fields - an electric field and a magnetic field, which are crossed at right angles to each other.
2. How does a crossed electric and magnetic field velocity selector work?
Ans. The crossed electric and magnetic field velocity selector works based on the principle of particle motion in electric and magnetic fields. The electric field exerts a force on the charged particles, while the magnetic field exerts a force perpendicular to both the velocity and magnetic field. By adjusting the strengths of the electric and magnetic fields, particles with a specific velocity can be selected and pass through the selector.
3. What is the purpose of using a crossed electric and magnetic field velocity selector?
Ans. The purpose of using a crossed electric and magnetic field velocity selector is to separate particles based on their velocity. This is particularly useful in experiments where only particles with a specific velocity range are desired. By adjusting the electric and magnetic fields, unwanted particles can be filtered out, allowing for more precise measurements and analysis.
4. Can a crossed electric and magnetic field velocity selector select particles of any charge?
Ans. Yes, a crossed electric and magnetic field velocity selector can select particles of any charge. The force experienced by a charged particle in the electric and magnetic fields depends on its charge and velocity. Therefore, particles with different charges can be selectively filtered based on their velocities using this device.
5. What are some applications of crossed electric and magnetic field velocity selectors?
Ans. Crossed electric and magnetic field velocity selectors find applications in various fields of physics research. They are commonly used in mass spectrometry to separate ions based on their velocity. They are also utilized in particle accelerators and beam lines to select particles with specific velocities for further experiments or analysis. Additionally, they have applications in plasma physics, spectroscopy, and ion implantation techniques.
157 videos|453 docs|185 tests
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