Induced emf depends upon
Correct answer: D. All of these
- A. V
- B. B
- C. L
- D. All of these
Explanation
Faraday's law of electromagnetic induction states that the magnitude of the induced electromotive force (EMF) in a conductor is directly proportional to the rate of change of magnetic flux through the conductor.The magnetic flux (Φ) is given by:Φ = B * A * cos(θ)where:B is the magnetic field strengthA is the area of the loopθ is the angle between the magnetic field and the normal to the loopTherefore, the induced EMF depends on:Magnetic Field Strength (B): A stronger magnetic field will induce a larger EMF.Area of the Loop (A): A larger loop area will experience a greater change in magnetic flux for a given change in magnetic field, resulting in a larger induced EMF.Rate of Change of Magnetic Flux: The faster the magnetic flux changes, the greater the induced EMF. This change in flux can be due to changes in B, A, or θ.
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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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