The geometric length of a bar magnet having half magnetic length 5cm _

1.	The geometric length of a bar magnet having half magnetic length 5cm _____ cm. a) 12 b) 10 c) 6 d) 4.2
Answer» Geometric length: Geometric length is the measure of total length of magnet. A bar magnet consist of two equal and opposite magnetic pole separated by a small distance. Poles are not exactly at the ends. The shortest distance between two poles is called EFFECTIVE length and is LESS than its geometric length.Magnetic length = 0.84 * geometric lengthGeometric length = 2*5/0.84 = 11.905 cmHope this HELPS.

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The geometric length of a bar magnet having half magnetic length 5cm _____ cm. a) 12 b) 10 c) 6 d) 4.2

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