7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use.
MAGNETIC FIELD DUE TO A CURRENT- CARRYING CIRCULAR COIL
Soon after Oersted’s discovery of magnetic effect of a current- carrying wire, Ampere found that a loop of wire also had a magnetic field.
In order to find the magnetic field due to a coil, it is held in a vertical plain and is made to pass through a smooth cardboard in such a way that the centre (O) of the coil lies at the cardboard. A current is passed through the coil and iron filings are sprinkled on the cardboard. These iron filings arrange themselves in a pattern similar to one shown in the figure. An actual is shown in figure this pattern represents the magnetic field lies due to the coil.