An electromagnet is

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A temporary magnet

A permanent magnet

Not a strong magnet

Neither temporary nor permanent magnet

answer is A.

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Detailed Solution

An electromagnet is a temporary magnet.
An electromagnet is a temporary magnet that ideally have the property as a magnet when current passes through it and lose magnetism as soon as the current is stopped. Electromagnets are generally made of soft iron because it has high magnetic permeability, i.e. it can gain magnetic properties when current is passed around the core and quickly lose when the current is stopped. In addition, the soft iron inside the coil makes the magnetic field stronger because it becomes a magnet when the current flows.
So, an electromagnet behaves as a magnet when the switch is ON and loses magnetism when the switch is OFF. This makes the electromagnet a temporary magnet.
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