Point the fingers of your right hand in the same direction as the current is flowing in the coil. Your thumb points to the north pole of the electromagnet. The magnetic field produced by the ...

A coil with an iron core is called an electromagnet. The iron core increases the coil’s magnetic field strength. A simple electromagnet is made by coiling wire around an iron nail. An iron core ...

A University of Toronto Engineering team has collaborated with researchers in the Wilfred and Joyce Posluns Centre for Image ...

A research team at the University of Toronto in Canada has developed a set of miniature magnet-powered tools that could ...

A flower-shaped structure only a few micrometers in size made of a nickel-iron alloy can concentrate and locally enhance ...

Robotic surgical tools (around 8 millimetres in diameter) have been used for decades in keyhole surgery for other parts of ...

While technically not an electromagnet ... The coil is fed with AC. The magnetic field from the coil induces an opposite field in the copper ring that is out of phase with the exciting field.