electromagnet

音标发音

To make an electromagnet you need to send a current through the wire.
为了做成电磁体你需要对金属线送电.
The principle of electromagnet induction had thus been discovered.
电磁感应定律就是这样发现的.
Reset pneumatic spring, mechanical spring reset, reset electromagnet operation.
气动弹簧复位、机械弹簧复位、电磁铁操作复位.
To make an electromagnet you need to send a current through the wire.
为了做成电磁体你需要对金属线送电.
The principle of electromagnet induction had thus been discovered.
电磁感应定律就是这样发现的.

a device made from a piece of iron that becomes magnetic when a changing current is passed through the wire that goes around it

An electromagnet is a magnet that consists of a piece of iron or steel surrounded by a coil. The metal becomes magnetic when an electric current is passed through the coil.