The magnetic field at the centre of a closely wound circular coil of 100 turns, radius 22 cm, carrying a current of 3.5 A will be |
$1 × 10^{-2} T$ $2 × 10^{-3} T$ $1 × 10^{-3} T$ $2 × 10^{-4} T$ |
$1 × 10^{-3} T$ |
The correct answer is Option (3) → $1 × 10^{-3} T$ |