Magnetism and Matter questions
398 published questions with worked solutions.
- Statement 1: Any instrument can be protected from external magnetic field by putting inside a wooden box Statement 2: Iron is a...Not in JEE Advanced syllabus
- A natural bar magnetNot in JEE Advanced syllabus
- The length of a magnetised steel wire is l and the magnetic moment is m. It is bent into the shape of L with two equal sides. The...Not in JEE Advanced syllabus
- A magnet with moment m is given. If it is bent into a semi-circular form, its new magnetic moment will beNot in JEE Advanced syllabus
- The intensity of magnetisation of a bar magnet is 5.0 10^ 4 Am^ -1 . The magnetic length and the area of cross-section of the...Not in JEE Advanced syllabus
- Obtain the earth's magnetisation assuming that the earth's field can be approximated by a giant bar magnet of magnetic moment 8.0...Not in JEE Advanced syllabus
- The horizontal component of flux density of earth's magnetic field is 1.7 10^ -6 T . The value of horizontal component of...Not in JEE Advanced syllabus
- A paramagnetic substance in the form of a cube with sides 1 cm has a magnetic dipole moment of 20 10^ -6 J/T when a magnetic...Not in JEE Advanced syllabus
- A rod of ferromagnetic material has dimension 10 cm 0.5 cm 0.2 cm . It is placed in a magnetic field of strength 0.5 10^ 4 Am^ -1...Not in JEE Advanced syllabus
- A bar magnet of magnetic moment M_1 is axially cut into two equal parts. If these two pieces are arranged perpendicular to each...Not in JEE Advanced syllabus
- The SI unit of magnetic permeability isNot in JEE Advanced syllabus
- The relation connecting B, H and I in SI system isNot in JEE Advanced syllabus
- The magnetic susceptibility of a material of a rod is 299 and permeability of vacuum _0 is 4 10^ -7 Hm^ -1 . Absolute...Not in JEE Advanced syllabus
- An iron rod is placed parallel to magnetic field of intensity 2000 A/m. The magnetic flux through the rod is 6 10^ -4 Wb and its...Not in JEE Advanced syllabus
- A domain in a ferromagnetic substance is in the form of a cube of side 1 , m . If it contains 8 10^ 10 atoms and each atomic...Not in JEE Advanced syllabus
- The magnetisation of bar magnet of length 5 cm, cross-sectional area 2 cm^2 and net magnetic moment 1 Am^2 is [MHTCET 2019]Not in JEE Advanced syllabus
- The magnetic dipole moment of a short magnetic dipole at a distant point along the equator of magnet has a magnitude of X in SI...Not in JEE Advanced syllabus
- A magnetising field of 5000 A/m produces a magnetic flux of 4 10^ -5 Wb in an iron rod of cross-sectional area 0.4 cm^2 . The...Not in JEE Advanced syllabus
- A bar magnet has length 3 cm, cross-sectional area 2 cm^2 and magnetic moment 3 Am^2 . The intensity of magnetisation of bar...Not in JEE Advanced syllabus
- Energy stored in a current carrying coil in the form ofNot in JEE Advanced syllabus
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