How do we determine strength of magnetic field at a given point due to a magnet? Write down units of magnetic field in SI and CGS system and their interconversion.

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1 Answers

i. Density of lines of force i.e., the number of lines of force per unit area around a particular point determines the strength of the magnetic field at that point.

ii. The magnitude of magnetic field strength B at a point in a magnetic field is given by,

Magnetic Field = \(\frac{magnetic\,flux}{area}\)

i.e., B = \(\frac{ø}{A}\)

iii. SI unit of magnetic field (B) is expressed as weber/m2 or Tesla.

iv. 1 Tesla = 104 Gauss

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