Magnetic Phenomena MCQs with Answers

What is the effect called when a magnetic field is generated perpendicular to the current flow in a conductor?

What is the effect called when a magnetic field is produced by the flow of current through a coil of wire?

What is the temperature above which a ferromagnetic material loses its permanent magnetism?

What is the effect called when a magnetic material resists changes to its magnetization?

What is the name of the phenomenon where certain materials expel magnetic fields as they transition to the superconducting state?

What phenomenon is used in transformers to transfer electrical energy between circuits?

What phenomenon causes the deflection of moving charged particles in a magnetic field?

What is the term for the ability of a material to support the formation of a magnetic field within itself?

What is the process by which a changing magnetic field induces an electric current?

What is the phenomenon where the direction of magnetization in a material is reversed by an external magnetic field?

What happens to the induced emf if the rate of change of magnetic flux is increased?

What is the phenomenon where a change in current in one coil induces a voltage in a nearby coil?

What is the effect called when a voltage is generated due to the relative motion of a conductor and a magnetic field?

What is the effect called when a material produces a voltage when subjected to a temperature gradient?

What happens to the magnetic properties of a material as it approaches absolute zero?

What is the phenomenon called when a current-carrying conductor experiences a force in a magnetic field?

What is the term for the opposition to the formation of a magnetic field in a material?

What phenomenon occurs when a material exhibits zero electrical resistance?

What is the name of the effect where a magnetic field influences the motion of charged particles?

What is the effect called when a magnetic field is generated around a conductor carrying a current?

What causes the magnetic moment in an atom?

What is the principle behind the operation of an electric motor?

Which phenomenon describes the production of voltage across a conductor when it is exposed to a changing magnetic field?

What type of magnetic material can be permanently magnetized?

What is the term for the natural magnetism found in the Earth?

What happens to a magnetic field when it passes through a diamagnetic material?

What phenomenon occurs when an electric current generates a magnetic field around a conductor?

What phenomenon explains the behavior of a compass needle?

What is the effect called when a voltage is generated in a conductor moving through a magnetic field?

What is the phenomenon where certain materials can retain their magnetic properties even after an external magnetic field is removed?

What is the name of the effect where a magnetic field is generated by a moving electric charge?

What type of magnetism is exhibited by materials that are attracted to both poles of a magnet?

What is the phenomenon called when two parallel current-carrying wires attract each other?

What happens to the magnetic field lines when they pass through a paramagnetic material?

What phenomenon explains the creation of an electric field by a changing magnetic field?

What is the term for the lag between the change in magnetization of a material and the external magnetic field?

What phenomenon causes a material to become magnetized in an external magnetic field?

What is the phenomenon where materials show strong magnetization in the direction of an external magnetic field?

What effect explains the increase in magnetic field strength within a ferromagnetic material?

What is the term for the alignment of magnetic moments in a ferromagnetic material?