A rectangular loop of wire with dimensions 0.2m x 0.5m is placed in a uniform magnetic field of 2T. The magnetic field is perpendicular to the plane of loop. What is flux in the loop?
Correct answer: B. 0.2Wb
- A. 0.1Wb
- B. 0.2Wb
- C. 0.3Wb
- D. 0.4Wb
Explanation
The formula is ΦB=BAcos Ɵ, Area =0.2x0.5=0.1m2 ΦB=BAcos0=(2)(0.1)=0.2Wb
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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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