The magnetization of bar magnet of length 5 cm, cross sectional area 2 cm² and net magnetic moment 1 Am² is (a) 3 × 10⁵ A/m (b) 4 × 10⁵ A/m (c) 2 × 10⁵ A/m (d) 1 × 10⁵ A/m

Answer: (d). Mz = m/V, V = 5×2 = 10 cm³ = 10⁻⁵ m³. Mz = 110⁻⁵ = 1×10⁵ A/m So the answer is (d).

The magnetization of bar magnet of length 5 cm, cross sectional area… | MHT CET 2019 (2 May, Shift 2)

Q43MHT CET 2019 · 2 MAY · SHIFT 2Easy

Magnetisation: B, H, M, χ & μ

The magnetization of bar magnet of length 5 cm, cross sectional area $2\text{ cm}^2$ and net magnetic moment $1\text{ Am}^2$ is

Show answer and solution

Answer: (d)

A magnetizing field of 5000 A/m produces a magnetic flux of 4 × 10⁻⁵ Wb in an iron rod of…MHT CET 2019 (3 May, Shift 1)
A paramagnetic substance in the form of a cube with sides 1 cm has a magnetic dipole…JEE Main 2019 (11 Jan, Shift 2)
A magnetising field of 5000 A/m produces a magnetic flux of 4 × 10⁻⁵ Wb in an iron rod of…MHT CET 2026 (15 May, Shift 1)
An iron rod is placed parallel to magnetic field of intensity H. The magnetic flux…MHT CET 2026 (13 May, Shift 1)
An iron rod is placed parallel to magnetic field intensity 1000 A/m. The magnetic flux…MHT CET 2026 (15 Apr, Shift 2)
An iron rod is placed parallel to magnetic field intensity 2000 A/m. The magnetic flux…MHT CET 2026 (13 Apr, Shift 1)
The relationship between the magnetic susceptibility ( χ) and magnetic permeability ( μ)…MHT CET 2026 (15 May, Shift 2)
The relation between total magnetic field (B), magnetic intensity (H), permeability of…MHT CET 2026 (12 May, Shift 2)