W.O.F does not effect the motion of moving electron?
Correct answer: C. Magnetic Field applied in direction of motion
- A. Electric Field applied in direction of motion
- B. Electric Field applied perpendicular to direction of motion
- C. Magnetic Field applied in direction of motion
- D. Magnetic Field applied perpendicular to direction of motion
Explanation
Here is the explanation of the correct optionF = q(v x b)As v & b are in same direction so their cross product is zero F = q (0)F = 0(The perpendicular option will cause the electron to move in the circular motion)(For Electric field use F = qE (the parallel one cause the electron to experience a force in the direction of the field and changing its speed while perpendicular one will only cause the change in direction) )
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About Charged Particle in a Magnetic Field
A charged particle moving through a magnetic field experiences the Lorentz force, which is perpendicular to both its velocity and the field. The motion may be circular or helical, with questions involving radius, angular frequency, time period, and work done. A stationary charge feels no magnetic force.
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