In hydrogen atom, an electron is revolving in the orbit of radius 0.53 A0 with 6.6 x 10^15 rotations/second. The magnetic field produced at the center of the orbit is:
Correct answer: C. 12.5 wb / m2
- A. 0.125 wb / m2
- B. 1.25 wb / m2
- C. 12.5 wb / m2
- D. 125 wb / m2
Explanation
B = μ0 / 4π * 2π(qv) / r= 10^-7 × 2 × 3.14 × (1.6 × 10^-19 × 6.6 × 10^15) / 0.53 × 10^-10= 12.5 Wb/m².
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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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