Electrons in One Shot | Class 12 Physics NEB | Nepali ScienceGuru
Nepali ScienceGuru - Aashish Panta・2 minutes read
An electron has more components than a proton in an electric field due to its smaller mass, and a charged particle fired into a magnetic field follows a circular trajectory unless the region's length is greater than the circle's radius. It cannot be assumed that an external electric field is zero if a charged particle moves through a region with constant velocity and zero external magnetic field, and the acceleration of a moving charge in parallel and perpendicular magnetic fields must be calculated.
Insights
- Electrons, due to their smaller mass compared to protons, exhibit more components when entering an electric field with the same initial kinetic energy.
- A charged particle fired into a magnetic field will trace a circular path unless the region's length exceeds the radius of the circle formed, impacting the particle's trajectory.
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Recent questions
How does mass affect particle components in an electric field?
The electron will have more components due to its smaller mass.
What trajectory does a charged particle follow in a magnetic field?
It will follow a circular trajectory unless the region is longer than the circle's radius.
Can external electric field be zero with constant velocity and no magnetic field?
It cannot be concluded that the external electric field is zero.
What is the expression for acceleration of a moving charge in magnetic fields?
The expression for acceleration should be written down.
What happens when a proton and electron enter an electric field?
The electron will have more components due to its smaller mass.
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Summary
00:00
Charged Particle Behavior in Electric and Magnetic Fields
- When a proton and an electron with the same initial kinetic energy enter an electric field normally, the electron will have more components due to its smaller mass.
- If a charged particle is fired normally into a magnetic field, it will follow a circular trajectory unless the length of the region it enters is greater than the radius of the circle it forms.
- If a charged particle moves through a region with constant velocity and zero external magnetic field, it cannot be concluded that the external electric field in the region is also zero.
- The expression for the acceleration of a moving charge q in parallel and perpendicular magnetic fields should be written down.
