NEET Magnetic Effects of Current MCQs & PYQs

A loop in the shape of an equilateral triangle of side l is suspended between the pole pieces of a
permanent magnet such that \[\overrightarrow{B}\] is in plane of the loop. If due to a current i in the triangle a torque τ acts on it, the side l of the triangle is :

When a charged particle moving with velocity \(\overrightarrow{v}\)is subjected to a magnetic field of induction                 \(\overrightarrow{B}\) , the force on it is non-zero. This implies the :

An eΘ is moving in North direction & magnetic field at this place is along upward direction then
eΘ will be deviate towards :

A ring of radius r is carrying a current I. The magnetic field B is always perpendicular to the ring as shown in Fig. The force on the ring is :

A bar magnet is placed inside a non-uniform magnetic field. It may experience :

The materials suitable for making electromagnets should have :

The universal property among all substances is:

A current carrying wire AC is placed in uniform transverse magnetic field then the force on wire AC :

Magnetic susceptibility of the following is :

Diamagnetic substances characterise by :