Study the Magnetic Field Pattern of Various Materials Using a Bar Magnet
 1) What is the effect produced on a magnetic field when an electric current is passed through a wire? The magnetic field reverses The magnetic field weakens The magnetic field strengthens The magnetic field remains unchanged

 2) What is magnetism? The ability of a material to conduct electricity The ability of a material to attract other materials The ability of a material to produce a magnetic field The ability of a material to emit light

 3) How does the number of turns in a current-carrying coil affect the magnetic field produced? Increasing the number of turns strengthens the magnetic field The number of turns has no effect on the magnetic field Increasing the number of turns reverses the magnetic field Increasing the number of turns weakens the magnetic field

 4) What is induced magnetism? The ability of a material to repel other magnets The process of creating a permanent magnet The temporary magnetism acquired by a material in the presence of a magnetic field The process of magnetizing a ferromagnetic material

 5) What happens to the induced magnetism when the external magnetic field is removed? The induced magnetism disappears The induced magnetism reverses its polarity The induced magnetism becomes stronger The induced magnetism remains unchanged

 6) Which of the following is an example of an induced magnet? A bar magnet An electromagnet A permanent magnet A refrigerator magnet

 7) What is the magnetic field pattern around a bar magnet? The field lines are straight and parallel to the magnet The field lines extend only from one pole to the other The field lines form circles around the magnet The field lines are random and scattered

 8) How can you induce magnetism in a non-magnetic material? By placing it in a strong magnetic field By rubbing it with a piece of plastic By subjecting it to an electric current By exposing it to high temperatures

 9) What is the SI unit of magnetic field strength? Ampere (A) Newton (N) Tesla (T) Volt (V)

 10) How is induced magnetism different from the magnetism of a bar magnet? Induced magnetism and bar magnetism are the same phenomenon Induced magnetism can only occur in non-magnetic materials, while bar magnetism can only occur in ferromagnetic materials Induced magnetism is permanent, while bar magnetism is temporary Induced magnetism is temporary, while bar magnetism is permanent