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…
7 years ago
Magnetic Effects of Current and Magnetism
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…
7 years ago
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…
7 years ago
If a magnetic substance is brought near the north or the south pole of a bar magnet
If a magnetic substance is brought near the north or the south pole of a bar magnet, it is: Options…
7 years ago
A susceptibility of a certain magnetic material is 400. What is the class
A susceptibility of a certain magnetic material is 400. What is the class of the magnetic material? Options (a) Diamagnetic…
7 years ago
A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge
A proton beam enters a magnetic field of 10⁻⁴ Wb/m² normally. If the specific charge of the proton is 10¹¹…
7 years ago
A freely suspended bar magnet aligns itself in
A freely suspended bar magnet aligns itself in Options (a) A direction (b) A particular direction (c) Any direction (d)…
7 years ago
There is a ring of radius r having linear charge densityλ and rotating with a uniform
There is a ring of radius r having linear charge density λ and rotating with a uniform angular velocity ω.…
7 years ago
Magnetism of a magnet is due to
Magnetism of a magnet is due to Options (a) Cosmic rays (b) Large magnet at the centre of Earth (c)…
7 years ago
Magnetism of a magnet is due to
Magnetism of a magnet is due to Options (a) Cosmic rays (b) Large magnet at the centre of Earth (c)…
7 years ago