A circular loop of area 0.05 m2 rotates in a uniform magnetic field of 0.2 T. If the loop rotates about its diameter which is perpendicular to the magnetic field, find the flux linked with the loop when its plane is parallel to the field:
Correct answer: B. 0 Wb
- A. 0.01 Wb
- B. 0 Wb
- C. 8.66 x 10^-3 Wb
- D. 0.86 Wb
Explanation
When the plane is parallel to the field, the angle is 90°. As cos 90° = 0 so flux= ø= 0 Wb.
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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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