Avery long wire has a radius of r 10 mm and a constant current of 5 amps. what is the energy density at r 6 meters away from the wire? if you needed a higher energy density for some reason, what things could you change? and where did that energy come from, anyway?

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

Ineed ! using proper grammar, spelling, and punctuation, write at least one 5 sentence paragraph describing 3 ways we use the elements of the electromagnetic spectrum (ems) in our everyday lives.