Q1
The magnetic field lines of a bar magnet emerge from the:
📝 SolutionOutside a magnet, field lines emerge from the north pole and enter the south pole.
Q2
Substances weakly attracted by a magnetic field are called:
📝 SolutionParamagnetic substances are weakly attracted by a magnetic field, e.g. aluminium, platinum.
Q3
The temperature above which a ferromagnetic material loses its magnetism is called the:
📝 SolutionAbove the Curie temperature, a ferromagnetic material becomes paramagnetic and loses its strong magnetism.
Q4
Magnetic field lines:
📝 SolutionMagnetic field lines never intersect, because at any point the field has a single unique direction.
Q5
The strength of a magnetic dipole is measured by its:
📝 SolutionThe magnetic moment measures the strength and orientation of a magnetic dipole.
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Class 12 · Physics
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