Chapter: Physics : Effects of electric current : Higher Secondary(12 Std)
Magnetic flux
The magnetic flux (?) linked with a surface held in a magnetic field (B) is defined as the number of magnetic lines of force crossing a closed area (A) (Fig 4.1).
Magnetic flux
The magnetic flux (φ) linked with a surface held in a magnetic field (B) is defined as the number of magnetic lines of force crossing a closed area (A) (Fig 4.1). If θ is the angle between the direction of the field and normal to the area, then
Electromagnetic induction
Michael Faraday demonstrated the reverse effect of Oersted experiment. He explained the possibility of producing emf across the ends of a conductor when the magnetic flux linked with the conductor changes. This was termed as electromagnetic induction. The discovery of this phenomenon brought about a revolution in the field of power generation.
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Physics : Effects of electric current : Higher Secondary(12 Std) : Magnetic flux |
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Physics : Effects of electric current : Higher Secondary(12 Std)