Magnetism and Matter — practice questions
62 curated practice questions from Magnetism and Matter (Physics Class 12, CBSE) — 50 easy, 11 medium, 1 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- In the magnetic meridian of a certain place the horizontal component of earth’s magnetic field is 0.25 G and dip angle…
- Which of the following cannot modify an external magnetic field as shown in the figure?
- Assertion (A): In water, the value of the magnetic field decreases. Reason (R): Water is a diamagnetic substance.
- Match the column I with column II and mark the appropriate choice. Column I Column II (A) Ferromagnetic (i) (B)…
- An iron needle is kept near a strong bar magnet. It will experience
- Assertion (A): The poles of a bar magnet cannot be separated. Reason (R): Magnetic monopoles do not exist.
- Which of the following substances has relative magnetic permeability _ r 1 ?
- A bar magnet of pole strength (m) and magnetic moment (M) is cut perpendicular to its axis in two equal halves. The new…
- The magnetic moment of a short bar magnet placed with its axis magnetic at 30° with an external field of 900 G…
- Which of the following pairs is that of paramagnetic materials?
- Which of the following statements is not correct about magnetic behaviour of substances?
- A bar magnet is cut into two equal halves parallel to its magnetic axis. The physical quantity that remains unchanged…
- A material is pushed out when placed in a uniform magnetic field. The material is
- Which one of the following has negative value of susceptibility?
- The magnitude of the equatorial magnetic field due to a bar magnet of length 2 cm at a distance of 1 meter from its…
- A diamagnetic substance is brought, one by one, near the north pole and the south pole of a bar magnet. It is
- Paramagnetic substances are magnetised in a magnetic field in the same direction. Paramagnetism is due to presence of
- Assertion (A): The magnetic poles of earth do not coincide with the geographic poles. Reason (R): The discrepancy…
- Which of the following material has its magnetic susceptibility x in the range 0 x , where is positive and small?
- The relative magnetic permeability of a medium is 0.075. Its magnetic susceptibility will be:
- How does the magnetic susceptibility of a paramagnetic material change with absolute temperature T?
- A small bar, when placed near a magnet is repelled by it. This is because the bar is made of:
- Which of the following has its permeability less than that of free space?
- Which one out of the following materials is not paramagnetic?
- If B E represents equatorisal magnetic field and B A represents axial magnetic field due to a bar magnet. Which of the…
- A bar magnet has magnetic dipole moment M . Its initial position is parallel to the direction of uniform magnetic field…
- Fe 3 O 4 is ferrimagnetic at room temperature but at 850 K, it becomes
- Assertion (A): Diamagnetic substances exhibit magnetism. Reason (R): Diamagnetic materials do not have permanent…
- The earth behaves as a magnet with magnetic field pointing approximately from the geographic
- The materials having negative magnetic susceptibility are:
- Two identical magnetic dipoles of magnetic moment 2 A m 2 are placed at a separation of 2 m with their axes…
- The magnetic field lines near a substance are as shown in the figure. The substance is:
- When a ferromagnetic substance is heated to a temperature above its Curie temperature, it will:
- A short bar magnet has a magnetic moment of 0.48 J T –1 . The magnitude and direction of magnetic field produced by the…
- A bar magnet is initially at right angles to a uniform magnetic field. The magnet is rotated till the torque acting on…
- Following figures show the arrangement of bar magnets in different configurations. Each magnet has magnetic dipole…
- Assertion (A): Soft iron is used as the core of the transformer. Reason (R): Area of hysteresis loop for soft iron is…
- Assertion (A): Magnetic susceptibility is a pure number. Reason (R): The value of magnetic susceptibility for vacuum is…
- A piece of a diamagnetic material, free to move when placed in a uniform magnetic field:
- If a magnetic material is having magnetic susceptibility (χ) = –1, then the relative magnetic permeability (μ r ) and…
- Which of the following is correct about magnetic monopole?
- The dip angle at a location in southern India is about 18°. Then the dip angle in Britain will be
- The magnetic field due to a magnetic dipole of magnetic moment M at a point on the axis of the dipole and at a distance…
- A solenoid has a core of a material with relative permeability of 500. The windings of the solenoid are insulated from…
- Assertion (A): When a bar of copper is placed in an external magnetic field, the field lines get concentrated inside…
- Out of given paramagnetic substance (calcium, chromium oxygen and Tungsten) which substance has maximum susceptibility?
- What is the magnitude of axial field due to a bar magnet of length 3 cm at a distance of 75 cm from its mid-point if…
- Which one of the following has relative magnetic permeability between 0 and 1?
- Two similar magnets of magnetic moments M 1 and M 2 are taken and vibrate in a vibration magnetometer with their like…
- The torque and magnetic potential energy of a magnetic dipole in most stable position in an uniform magnetic field…
- The magnetic susceptibility for a diamagnetic material is
- In an experiment it is found that the magnetic susceptibility of given substance is much more greater than one. The…
- Magnetic moment for a solenoid and corresponding bar magnet is
- Which of the following statements is not correct about the magnetic field?
- The equatorial magnetic field of earth is 0.4 G. Then its dipole moment on equator is
- A magnetic needle has magnetic moment 5.8 × 10 –2 A m 2 and moment of inertia of 7.8 × 10 –6 kg m 2 , it performs 12…
- A short bar magnet placed with its axis at 45° with an external field of 600 G. Its magnetic moment if it experiences a…
- A magnetic needle has a magnetic moment 5.0 × 10 –2 A m 2 and moment of inertia 8.5 × 10 –7 Kg m 2 . It performs…
- A frog can be levitated in a magnetic field produced by a current in a vertical solenoid placed below the frog. This is…
- The main use of studying a hysteresis curve for a given material is to estimate the
- Ferrimagnetism is observed when the magnetic moments of the domains in the substance are
- Which of the following is not correct about the magnetic field lines?