Question:
Why is magnitude of force 0 on a high speed electron in space far away from all material objects, and free of electric and magnetic fields? (Ncert 5.1 (e))
Answer:
When an electron moves in an electric or magnetic field, the field exerts force on it.
But in a space where, there is no electric and magnetic fields, there is no force on the electron .
So, the magnitude of force is 0.
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