CUET Preparation Today
The magnetisation at the centre of a bar magnet (magnetic length 10 cm), having pole strength 6.3 A m, and area of cross-section $0.70\, cm^2$ is |
$1.1 × 10^{-5} A m^{-1}$ $9.0 × 10^4 A m^{-1}$ $9.0 × 10^3 A m^{-1}$ $9.0 × 10^{-4} A m^{-1}$ |
$9.0 × 10^4 A m^{-1}$ |
The correct answer is Option (2) → $9.0 × 10^4 A m^{-1}$ |
