An Electron Moves in a Straight Path in a Certain Region – Are You Sure That It Is Free from Any Field?
An electron moves in a straight path in a certain region. Are you sure that it is free from any field? This conceptual question is very important for Class 11 Physics, especially in the chapter related to electric and magnetic fields.
Concept: An Electron Moves in a Straight Path
If an electron moves in a straight path with constant velocity, it does not necessarily mean that the region is free from electric or magnetic fields. The straight-line motion can occur even in the presence of fields under special conditions.
Explanation
An electron may move in a straight line if the electric force and magnetic force acting on it cancel each other. In such a case, even though electric and magnetic fields are present, the net force becomes zero and the electron continues in a straight path.
Straight-line motion of a charged particle does not always imply absence of fields; it may indicate balanced electric and magnetic forces.
Exam-Oriented Answer
Therefore, we cannot be sure that the region is free from any field even if an electron moves in a straight path. The electron may be moving under the influence of equal and opposite electric and magnetic forces.
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An Electron Moves in a Straight Path in a Certain Region – Are You Sure That It Is Free from Any Field?