Physics

The magnetic moment of a diamagnetic atom is

The magnetic moment of a diamagnetic atom is Options (a) equal to zero (b) much greater than one (c) 1…

The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum

The magnetic susceptibility of a material of a rod is 299. Permeability of vacuum μ₀ is 4πx10⁻⁷ Hm⁻¹. Absolute permeability…

The conducting loop in the form of a circle is placed in a uniform magneitc field

The conducting loop in the form of a circle is placed in a uniform magneitc field with its plane perpendicular…

Two concentric coils each of radius equal to 2π cm are placed at right angles

Two concentric coils each of radius equal to 2π cm are placed at right angles to each other. If 3A…

The intensity of magnetisation of a bar magnet is 5×10⁴ Am⁻¹. The magnetic length

The intensity of magnetisation of a bar magnet is 5x10⁴ Am⁻¹. The magnetic length and the area if cross- section…

Two parallel beams of positron moving in the same direction will

Two parallel beams of positron moving in the same direction will Options (a) not interact with each other (b) repel…

A vibration magnetometer placed in magnetic meridian has a small bar magnet

A vibration magnetometer placed in magnetic meridian has a small bar magnet. The magnet executes oscillations with a time period…

The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external

The value of workdone for rotating a magnet of magnetic moment M by an angle θ in external magnetic field…

A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed

A paramagnetic sample shows a net magnetisation of 0.8 Am⁻¹, when placed in an external magnetic field of strength 0.8…

A cyclotron is used to accelerate

A cyclotron is used to accelerate Options (a) Only negatively charged particles (b) neutron (c) Both positively and negatively charged…