An electron is moving along the line of force in magnetic field B with velocity u, then the maximum force acting on the charge is given by _.
Correct answer: D. 0
- A. Bue
- B. Bq/u
- C. Bu/q
- D. 0
Explanation
The force acting on a charge moving through a magnetic field is given by the equation F = qVBsinθ, where q is the charge, B is the magnetic field, V is the velocity of the charge, and θ is the angle between the velocity vector and the magnetic field vector. In this case, the electron is moving along the line of force in the magnetic field B, which means that the angle between the velocity vector and the magnetic field vector is 0°. Therefore, sinθ = sin(0°) = 0. Substituting sinθ = 0 into the equation F = qVBsinθ, we get: F = qVB(0) = 0 This means that the force acting on the electron is zero, and hence the correct option is D.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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