Lorentz Force Full
Easyphysics
Lorentz force vector expression?
Select the correct option:
Solution
Incorrect! Answer:
q(E + v × B)
- Definition: The Lorentz force is the total electromagnetic force exerted on a point charge by electric and magnetic fields.
- Electric Component: Fe=qE, which acts in the direction of the field for a positive charge.
- Magnetic Component: Fm=q(v×B), which acts perpendicular to both velocity and the field.
- Unified Expression: Ftotal=Fe+Fm=qE+q(v×B).
- Factor out q: F=q(E+v×B).
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About This Question
- Subject
- physics
- Chapter
- magnetic effects and magnetism
- Topic
- lorentz force full
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
q(E + v × B)
- Definition: The Lorentz force is the total electromagnetic force exerted on a point charge by electric and magnetic fields.
- Electric Component: Fe=qE, which acts in the direction of the field for a positive charge.
- Magnetic Component: Fm=q(v×B), which acts perpendicular to both velocity and the field.
- Unified Expression: Ftotal=Fe+Fm=qE+q(v×B).
- Factor out q: F=q(E+v×B).
This easy difficulty physics question is from the chapter magnetic effects and magnetism, covering the topic of lorentz force full. It appeared in the 2025 exam.
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