CBSE Class 12 Magnetism — practice questions
46 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 12 Magnetism in the app →A bar magnet is cut into two equal halves perpendicular to its length. Each half has:The angle between magnetic north and geographic north at a place is called:A bismuth bar near a strong magnet on the lab table is:Above the Curie temperature, a ferromagnetic material:A freely suspended bar magnet settles pointing:The tip of a magnet pointing to geographic north is its:Magnetic monopoles, according to the text:Cutting a bar magnet in half gives:Magnetic field lines of a bar magnet form:A bar magnet behaves like a magnetic:Substances repelled by a magnetic field are:Materials are classified by which quantity?Substances that are weakly magnetised in a field are:Substances that are strongly magnetised in a field are:A ferromagnet is divided internally into regions called:In an unmagnetised ferromagnet, the domains are:Applying a field makes the domains:Above a certain temperature, a ferromagnet becomes a:The Earth's magnetic field runs approximately from geographic:A bar magnet can be modelled as a large number of:The magnetic moment of a bar magnet equals that of an equivalent:Inside a diamagnetic material, the field is:Diamagnetism arises in atoms whose electrons have no net:Field lines of a bar magnet differ from an electric dipole's because they:Magnetic field lines give a realisation of the field that is:Magnetic field lines of a magnet or solenoid form loops that are:Electric dipole field lines differ because they begin at a charge that is:The tangent to a field line at a point gives the field's:A current loop is shown to behave as a:Ampere's hypothesis explains magnetism in terms of currents that are:The magnetic dipole moment of a current loop uses turns, current and:A bar magnet may be thought of as many circulating currents like a:Cutting a bar magnet in half is compared to cutting a:Field lines emerge from one face of a solenoid and enter the:The net magnetic flux through any closed surface is:For a closed surface in a magnetic field, lines leaving equal lines:A magnetic needle in a field experiences a:The restoring torque on a displaced needle opposes the torque that is:A needle displaced in a magnetic field is allowed to:Magnetisation of a sample is its net magnetic moment per unit:In a bulk material the atomic magnetic moments add up:The magnetic moment inside an atom comes from an electron that is:Among susceptibility, permeability and relative permeability, how many are independent?Magnetic susceptibility values in the table are quoted at:The hysteresis loop is a curve plotting B against:Susceptibility is used to classify materials as diamagnetic, paramagnetic or: