MCQ (Single Correct Answer)
A solenoid of 500 turns/m is carrying a current of 3 A. Its core is made of iron which has relative permeability 5001. The magnitude of magnetization ...
According to Curie's law in magnetism, the correct relation is ( $$\mathrm{M}=$$ magnetization in paramagnetic sample, $$\mathrm{B}=$$ applied magneti...
A thin rod of length $$L$$ has magnetic moment $$M$$ when magnetised. If rod is bent in a semicircular arc what is magnetic moment in new shape?...
The materials suitable for making electromagnets should have
The north pole of a long horizontal bar magnet is being brought towards closed circuit consisting of a coil. The direction of induced current produced...
What is susceptibility of a medium, if its relative permeability is 0.85?