The soft-iron is a suitable material for making an electromagnet. This is because soft-iron has

The value of aluminium susceptibility is 2.2 $\times$ 10$-$5. The percentage increase in the magnetic field if space within a current…

In a uniform magnetic field, the magnetic needle has a magnetic moment 9.85 $\times$ 10$-$2 A/m2 and moment of inertia 5 $\times$ 10$-$6 kg…

A magnetic dipole experiences a torque of $80 \sqrt{3} \mathrm{~N} \mathrm{~m}$ when placed in uniform magnetic field in such a way that…

A bar magnet is released from rest along the axis of a very long vertical copper tube. After some time the magnet will

Given below are two statements: one is labelled as Assertion $\mathbf{A}$ and the other is labelled as Reason $\mathbf{R}$ Assertion A :…