electro magnet
A compass relies on Earth's magnetism to stay pointed north.
Kymograph. Don"t ask me how it works- also used to track RF radio frequency waves.
Everything that you plug into the wall works because the electric field is what moves electron from point A to point B. Any optical(mirror, lens, radar ....) device works because of property of light. Light is a EM wave, and most device bend or reflect light by manipulating how the electric field component of the light wave behave.
Maxwell described that electricity and magnetism cannot be separated. If you examine maxwell's equations you can see that a moving electric charge will produce an electric field. You can also see that a magnetic field that changes in time can produce an electric field. Maxwell also predicted that an electric and magnetic field can propagate infinitely together- this is called a wave (otherwise known as light, x-rays, microwaves, etc...).
The mass of the Earth can be determined by the gravitational force it exerts on any object. This works, once the gravitational constant is known. The gravitational constant can be measured with a Cavendish balance.
A compass relies on Earth's magnetism to stay pointed north.
Because god wanted it wanted that way!!
magnetism
yes it is
Ellen G. Gartrell has written: 'Electricity, magnetism, and animal magnetism' -- subject(s): Animal magnetism, Bibliography, Early works to 1800, Early works to 1850, Electricity, Magnetism, Union Catalogs, Union lists
magnetism works by the type of metal used to pull other type metal to it.
It isnt. Two different forces; gravity and magnetism. As for how gravity works; all objects have their own "gravity", the bigger they are, the more gravitational pull they have. Why gravity works; nobody knows or we would all have flying cars.
it works very well
Franz Ulrich Theodor AEpinus has written: 'AEpinus's Essay on the theory of electricity and magnetism' -- subject(s): Early works to 1800, Early works to 1850, Electricity, Magnetism
Digital Data is data that is stored in binary, and a Digital Device is any device that works with binary data
A Touchscreen Monitor will work as an input and output device
Any digital device - as opposed to an analogue device.