It is a common grade school experiment to wind some wire around ... It is also grade school science to show that neither an electromagnet nor a permanent magnet will pick up nonferrous items ...

The bigger the current the stronger the magnetic field and hence the stronger the electromagnet. Hazard Consequence Control measures Water Electric shock Do not set up the experiment near taps ...

The strength of the electromagnet can be increased by passing more electric current through the coils and/or wrapping more coils around the iron core. Electromagnets are used in devices such as ...