The unit of "E/B" is:
Correct answer: C. ms-1
- A. Watt
- B. Tesla
- C. ms-1
- D. Weber
Explanation
In a velocity selector, the electric force (qE) balances the magnetic force (qvB), so qE = qvB. This simplifies to E = vB, and therefore v = E/B. The unit of the ratio E/B is the unit of velocity, which is meters per second (m/s).
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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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