lifting magnet मीनिंग इन हिंदी

A " portative electromagnet " is one designed to just hold material in place; an example is a lifting magnet.
To achieve this, in applications like lifting magnets ( see photo above ) and loudspeakers a flat cylindrical design is often used.
:: : : Permanent magnet ( I assume the OP is not talking about electromagnets ) lifting magnets usually have a mechanism for releasing the load when required.
In many practical applications of electromagnets, such as motors, generators, transformers, lifting magnets, and loudspeakers, the iron core is in the form of a loop or magnetic circuit, possibly broken by a few narrow air gaps.