Why does the Earth have a magnetic field?
Why is there a magnetic field for the Earth?
Why can’t we use earths magnetic field to produce electricity? Can earth’s magnetic field be repelled by a magnet? Could the Earth's magnetic field be used to produce electrical energy? What is the magnetic field due to an electromagnet at a point that is not along its axis? Can earth's magnetic field be used to produce electricity? How magnetic field is produced by electric field? Is it possible to use the earth's magnetic field to produce electricity? What's the difference between electric field and magnetic field? What's the difference between a magnetic field and an electromagnetic field? How are the magnetic poles of the Earth fixed? Why the magnetic field lines are normal to the surface in case of ferromagnets? What is the relationship between a magnetic field and gravity? Why isn't the force of a magnet limited to the magnet itself, how can it form a field? Does a magnetic field have mass? Is there any connection between gravity and magnetic fields of force? What is the difference between electric and magnetic fields? What causes electrons and protons to have a magnetic field and what are magnetic fields made of? What is the main difference between magnetic and electric fields? What is magnetic? What is the direction of induced electric field due to changing magnetic field? What is the direction of induced magnetic field due to changing electric field? Which is stronger, a magnetic field or an electric field? What is the difference between magnetic flux and magnetic field? Why does the slowly rotating planet Mercury have a magnetic field if it doesn't have a molten core? Why does a current carrying coil produce magnetic field? Is there is any relation between magnetic field and gravitational force? Why does a current carrying conductor produce a magnetic field around it? Scientists say that the human body produces magnetic field so, can we harness this magnetic field and induce electrical energy just from the body? How do I decide the direction of magnetic field? Why are electric and magnetic fields perpendicular in an electromagnetic wave?