Q2: A coil of 100 turns is wound uniformly over a wooden ring having a mean circumference of 500mm and a uniform cross sectional area of 500mm2. If the current through the coil is 2.0A calculate (i) the magnetic field strength (ii) the flux density (iii) the flux (iv) mmf

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Coulomb’s Law

Coulomb's law states that the attraction or repulsion force between two charged things is proportional to the product of their charges and inversely proportional to the square of their distance. It has an effect along the line that connects the two-point charges.