PLEASE HELP The force on the wire is 50 x 10-³ N
The current in the wire is 2.0 A.
There is 6.25cm of wire in the magnetic field.
Calculate the size of the magnetic field.

What do radio waves and microwaves have in common? both are at the side of the spectrum that has the shortest wavelengths. both are at the side of the spectrum that has the lowest radiant energy. both are at the side of the spectrum that has the lowest frequency. both are found next to visible light on the electromagnetic spectrum.

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices