Q147 / 160 · AP EAMCET 2020 (21 Sep Shift 1) · Physics

The unit of magnetic induction is

  • Correct answer
    A
    \(\mathrm{Wb} \mathrm{m}^{-2}\)
  • B
    \(\mathrm{Wb} \mathrm{m}^{-1}\)
  • C
    Wb A
  • D
    Wb

Solution

Magnetic flux passing through a surface is given as \(\phi=B A\) where, \(A=\) area and \(B=\) magnetic induction. \(\therefore \quad B=\frac{\phi}{A} \mathrm{~Wb} / \mathrm{m}^2\) \(\therefore\) Unit of magnetic induction \(B\) is \(\mathrm{Wbm}^{-2}\).

Hence, the correct answer is option: 'A'.

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