Question:medium

A tightly wound \(100\) turns coil of radius \(10 cm\) carries a current of \( 7 A\). The magnitude of the magnetic field at the centre of the coil is (Take permeability of free space as \(4\pi×10^{-7}\) SI units):

Updated On: Nov 26, 2025
  • \(44mT\)
  • \(4.4T\)
  • \(4.4mT\)
  • \(44 T\)