Description

OERSTED’S LAW APPARATUS

OERSTED’S LAW APPARATUS:

This is the unit of the auxiliary magnetic field H in the centimetre–gram–second system of units (CGS). It is equivalent to 1 dyne per max well.

Specifications:

• To show the effect of electric current on a magnet.
• Comprises of a cobalt steel magnetic needle, about 75 mm long.
• With a gate bearing supported on pivot mounted on insulated pillar on base and surrounded by a rectangular frame of non-magnetic metal strip.
• Frame fitted with terminals for electrical connections.
• Passing the current through non-magnetic frame causes magnetic needle to deflect as per Oersted’s law.

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