A long straight wire carries a current of 35 A. The magnitude of the field B at a point 20 cm from the wire would be: |
$5.3 × 10^{-5} T$ $3.5 × 10^{-6} T$ $3.5 × 10^{-5} T$ $53 × 10^{-7} T$ |
$3.5 × 10^{-5} T$ |
The correct answer is Option (3) → $3.5 × 10^{-5} T$ |