How fast an H+ ion should move in a magnetic field 2.5 x 10^-3 T such that magnetic force equals its weight?
Correct answer: D. 4 x 10^-5 m/s
- A. 6 x 10^-5 m/s
- B. 3.5 x 10^-5 m/s
- C. 3.3 x 10^-6 m/s
- D. 4 x 10^-5 m/s
Explanation
According to given conditionForce = WeightevB = mgv = mg/eBPutting the values, we obtain
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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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