A relay is an electromagnetically controlled mechanical device in which electrical contacts are opened or closed by a magnetizing current.-A-TrueB-False-A-True

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APTITUDE CRACK · Accepted Answer

A True The artificial magnets depends on magnetizing current only.

Magnetism and Electromagnetism - Engineering

A relay is an electromagnetically controlled mechanical device in which electrical contacts are opened or closed by a magnetizing current.

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Magnetism and Electromagnetism - Engineering

A relay is an electromagnetically controlled mechanical device in which electrical contacts are opened or closed by a magnetizing current.

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Mcqs Questions