How is a magnetic field generated when a current flows through a conductor?
Is a magnetic field present when a current is not flowing through a conductor?
Why is there an induced current in the conductor when it moves perpendicular to a magnetic field? How does a current-carrying conductor produce a magnetic field when made into a coil? Why does a changing magnetic field induce a current? How magnetic field is produced by electric field? What is the direction of induced magnetic field due to changing electric field? What is the direction of induced electric field due to changing magnetic field? What is a magnetic field? Why does a magnet produce a magnetic field? Why are magnetic fields produced? What is magnetic field? As Frecuncy increase, magnetic flux inside conductor? What is the difference between magnetic flux and magnetic field? What is the magnetic field due to an electromagnet at a point that is not along its axis? What is magnetic? What happens when you change the direction of current in an electromagnet? What does a rapid change of a magnetic field induce and why? How and why is electric potential continually decreasing in a conductor carrying current? How is a magnetic field flowing through a current wire making my bulb giving light? Are the electrons of the filament excited by this magnetic field? What is the difference between electric and magnetic fields? What's the difference between a magnetic field and an electromagnetic field? What is the main difference between magnetic and electric fields? What's the difference between electric field and magnetic field? Why do magnets produce magnetic field like the way they do? Is it possible to create a dynamic magnetic field? Does a charged particle moving through a magnetic field always experience force? How do we create a magnetic field? How is magnetic field created by the electric field of the electron when the electron spins? A longer iron bar and a shorter iron bar are exposed to the same magnetic field.Would the total magnetic flux produced in them be the same? What is the physical significance of a magnetic field? Can magnetic fields ever do work? If not, how can one magnet lift another?