Describe an experiment to measure the magnetic flux density between the pole pieces of a strong magnet.

Describe an experiment to measure the magnetic flux density between the pole pieces of a strong magnet.

A search coil is connected to a ballistic galvanometer. The coil is then placed with its plane normal to the magnetic field whose magnetic flux density, B is required.

The coil is then pulled completely out of the field and deflection θ₁ of ballistic galvanometer is noted

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