What generates our planet's magnetic field?
- The planets rotation.
- The energy lost as the planet cools
- Both of the above driving movement of the molten iron in the core of the planet.
Why does the current carrying conductor experiences a force when it is placed in magnetic field state Fleming's left hand rule?
How does the frequency of a changing magnetic field compare with the frequency of the alternating voltage that is induced?
How can a change in voltage in a coil of wire be transferred to a neighboring coil of wire without physical contact?
When electric current flows through a coil of wire it generates a magnetic field. Variable current generates variable magnetic field. When a second coil is placed in a variable magnetic field of the first one an electric current is generated in it. Magnetic nature of the connection between two coils can be proved by the fact that it takes place only when the second coil is aligned with the magnetic field of the first one…
Planets that have a magnetic field have: 1) Contains magnetic material like iron, ionized gases, hematite, or magnetite. 2) Has a magnetic current going thru the material. If the planet does not contain enough magnetic material or the material does not have enough magnetic current, there is no magnetic field.
What happens in earths interior to produce Earth's magnetic field Describe the layer where the magnetic field is produced?
No, it is not inherently magnetic (like a solid desktop magnet). However the Earth's core generates a strong magnetic field as a result of the spin of the planet on its axis and the convection of the liquid metal (iron) component of the outer core. This magnetic field is electrical in origin and dynamic.
A few % of the magnetic field comes from the stream of charged particles coming from the Sun. This is why the magnetic field varies greatly in Polar Regions during a sunspot storm. The majority of the field is generated deep inside the Earth by electrical currents in the liquid part of the outer core. The nett result of these currents generates a magnetic field. The Curie Temperature of magnetic materials ensures that there are…