This question looks nonsensical. Did you write it down exactly as it was given to you? Where is this from?pivoxa15 said:Homework Statement
If a magnetic field has length 1m and strength 1T. What is its energy contained in it?
A magnetic field is an invisible force field that surrounds a magnet or a current-carrying wire. It is created by moving electric charges and has both strength and direction.
A magnetic field stores energy in the form of potential energy, which is the energy that a magnet or magnetic material has due to its position in the magnetic field. This energy is released when the magnetic field changes or moves, such as in the case of electromagnetic induction.
Magnetic fields and electric currents are closely related. A magnetic field is produced by the movement of electric charges, and an electric current is the flow of these charges. In fact, the two are so closely related that a changing magnetic field can induce an electric current, and an electric current can also produce a magnetic field.
The strength of a magnetic field is measured in units of Tesla (T) or Gauss (G). One Tesla is equal to 10,000 Gauss. The strength of a magnetic field can be measured using a device called a magnetometer.
The magnetic field and its energy have a wide range of practical applications. Some examples include electric motors, generators, MRI machines, magnetic levitation trains, and particle accelerators. Magnets are also used in everyday objects such as speakers, hard drives, credit cards, and refrigerator doors.