- #1
ninetyfour
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Homework Statement
I have a couple questions from my textbook that I was looking at when studying, and since there are no answers, I'm not sure whether what I'm thinking is right.
1. A charged particle is moving in a circle in a uniform magnetic field. A uniform electric field is suddenly created, running in the same direction as the magnetic field. Describe the motion of the particle.
2. An electron is at rest. Can this electron be set into motion by applying a) a magnetic field, and/or b) an electric field?
3. A negatively charged particle enters a region with a uniformly magnetic field perpendicular to the velocity of the particle. Explain what will happen to the kinetic energy of the particle. The attempt at a solution
1. The charged particle would accelerate towards the opposite charged plate?
2. a) Yes, the magnetic field would set the electron into motion because a magnetic field will exert a force on the electron?
b) Yes, because an electric field will also exert a force on the electron and the electron will move towards any positive charge?
3. The kinetic energy of the particle will be converted to magnetic energy or work done by the magnetic field?
I want to get down the basics, because I'm bad at that. It's kind of easy to just plug in numbers into a formula, and I want to make sure I understand the concepts. Help? :)
I have a couple questions from my textbook that I was looking at when studying, and since there are no answers, I'm not sure whether what I'm thinking is right.
1. A charged particle is moving in a circle in a uniform magnetic field. A uniform electric field is suddenly created, running in the same direction as the magnetic field. Describe the motion of the particle.
2. An electron is at rest. Can this electron be set into motion by applying a) a magnetic field, and/or b) an electric field?
3. A negatively charged particle enters a region with a uniformly magnetic field perpendicular to the velocity of the particle. Explain what will happen to the kinetic energy of the particle. The attempt at a solution
1. The charged particle would accelerate towards the opposite charged plate?
2. a) Yes, the magnetic field would set the electron into motion because a magnetic field will exert a force on the electron?
b) Yes, because an electric field will also exert a force on the electron and the electron will move towards any positive charge?
3. The kinetic energy of the particle will be converted to magnetic energy or work done by the magnetic field?
I want to get down the basics, because I'm bad at that. It's kind of easy to just plug in numbers into a formula, and I want to make sure I understand the concepts. Help? :)