A ferromagnet and electromagnet can be used together to

(a) Create a strong magnetic field.
(b) Create a weak magnetic field.
(c) Cancel any external magnetic fields.

(d) Create a heavy magnet.

An electromagnet is a substance which produces magnetic field when electric current is passed through it. The magnetic field produced by them disappears when the electric current is turned off.

A Ferromagnetic substance is a substance that gets magnetized when kept in an external magnetic field. Such substances remain magnetized even after the external magnetic field is removed.

When an electromagnet and a ferromagnet is combined, it results in the production of a strong magnetic field.

A ferromagnet and electromagnet can be used together to (a) Create a strong magnetic field. (b) Create a weak magnetic field. (c) Cancel any external magnetic fields. (d) Create a heavy magnet.

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A ferromagnet and electromagnet can be used together to

(a) Create a strong magnetic field.
(b) Create a weak magnetic field.
(c) Cancel any external magnetic fields.

(d) Create a heavy magnet.