Physics, asked by rajeev2932000, 1 year ago

what is toroid ? and retentivity?

Answers

Answered by Lovealia1
1
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TOROID: a toroid is a surface of revolution with a hole in the middle, like a doughnut, forming a solid body. The axis of revolution passes through the hole and so does not intersect the surface.

RETENTIVITY: the ability of a substance to retain or resist magnetization, frequently measured as the strength of the magnetic field that remains in a sample after removal of an inducing field.

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Answered by manalishakalita
2
a toroid is a coil of insulated or enamaled wire wound on a donut shaped form made of powderic iron.

retentivity means the ability of a substance to retain or resist magnetization , frequently measured as the strength of the magnetic field that remains in a sample after removal of an induciing field.
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