The formula Φ = B.A represents:
Correct answer: B. Magnetic flux
- A. Electric flux
- B. Magnetic flux
- C. Electric flux density
- D. Gravitational flux
Explanation
Magnetic flux is a measure of the total magnetic field passing through a given area. It quantifies how many magnetic field lines penetrate a surface. The concept is crucial in electromagnetism, especially in understanding electromagnetic induction. Mathematically, magnetic flux (Φ𝐵) through a surface can be expressed as:Φ𝐵=∫𝐵𝑑𝐴.
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About Magnetic Flux
Magnetic flux measures the magnetic field passing through a surface, calculated for a uniform field as Φ = BA cos θ, where θ is the angle between the field and the surface normal. Questions involve area, field strength and orientation, the weber as its unit, and the distinction between flux and magnetic field.
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